Blower Motor Gets Hot And Shuts Off

After checking the breakers, thermostat and overflow shut off (did not have one) I saw something about a blower motor capacitor. If this is the case, then the first thing you should do is turn off your motor and allow it to cool. I want to be able to set the stove so that the distribution blower never shuts off and maxes out the heat to the highest possible. A condensing fan motor should never be too hot to touch and be overheating on any unit whether it be a heat pump, air conditioner, or split system. Why Does my Lawn Mower Engine Stall When it Gets Hot? doesn't get enough gas the engine will shut off. The easiest way to check this is to manually check the motor using your hand. If you are checking an indoor blower motor, be sure to disconnect the power prior to checking. It feels very hot, so I am assuming it is cutting off due to heat. Today the indoor temp was 74. The motor will start when it has cooled down, then stops running as described above. This is to prevent a fire or burning of your clothes. later, the burner fires up and everything is great. I have 28 vac from the thermostat. If it fails to do so, however, you may find premature brush wear on the motor or, in extreme cases, melted blower housings. Overheating: When this happens, the blower motor's thermal-protection device usually shuts the unit off. The AC will start out the day working great! Cold air blows out it will run for an hour or two and before it gets to temp the blower motor shuts off while the compressor continues to run. I have the motor out now and without testing it electrically, the bearings appear to be in good condition - the shaft turns freely and smoothly. I turned it off and noticed a smell, the familiar smell of electrical equipment going 'poof'. The blower motor on my furnace gets hot, shuts down and smokes Hot enough for the overlimit switches to shut it down. I set the t-stat to 68. Simply replace the belt to get the blower motor operational again. The blower motor on my furnace gets hot, shuts down and smokes Hot enough for the overlimit switches to shut it down. After about 3 minutes, the burner shuts off and the blower motor turns on, simultaneously. I touched the motor housing and it is VERY hot - does not seem normal to me at all. No sputtering just keeps slowing down till engine shuts off. When it has cooled down to a safe temperature, check the motor. I shut the unit off. I set the t-stat to 68. I have cleaned the ESP probe previously. The distribution blower shuts off periodically and we can't seem to get the room as hot as we used to. This warping will cause the fuel to stop moving through the entire circuit, and the engine will shut off. It will be really hot to the touch it the fan isn't working properly due to the motor overheating. you have to gaurentee what work you do,so if the motor did reset and started up my fear is it may do the same thing and i am on the hook for. A hot blower motor, which indicates an overheating problem, will. This time the compressor does not come on and fan does not come on. heater works but blower motor gets very hot and will not allow condensation to run out thus causing the heater to no work properly. It feels very hot, so I am assuming it is cutting off due to heat. later, the burner fires up and everything is great. After checking the breakers, thermostat and overflow shut off (did not have one) I saw something about a blower motor capacitor. If you are checking an indoor blower motor, be sure to disconnect the power prior to checking. I turned it off and noticed a smell, the familiar smell of electrical equipment going 'poof'. Why Does my Lawn Mower Engine Stall When it Gets Hot? doesn't get enough gas the engine will shut off. I shut the unit off. One of the most common problems is that the blower motor makes a humming sound. Use caution, but check the blower motor to see if it is hot. If this is the case, then the first thing you should do is turn off your motor and allow it to cool. Loud humming and other unusual noises. Blower Motor I think I covered everything that has been discussed here but I still have the same issue. My AC fan motor turns off after 1 hour or so but compressor continue to run and gets hot. The carburetor inside a leaf blower uses several plastic diaphragms to bring fuel into the carburetor, mix and measure the fuel and send it off to the cylinder. When the thermostat calls for heat, the blower motor comes on immediately. After checking the breakers, thermostat and overflow shut off (did not have one) I saw something about a blower motor capacitor. The blower motor on my furnace gets hot, shuts down and smokes Hot enough for the overlimit switches to shut it down. You'll be able to tell that the condenser fan motor is the problem by simply placing your hand on the top of your unit. The AC will start out the day working great! Cold air blows out it will run for an hour or two and before it gets to temp the blower motor shuts off while the compressor continues to run. I turn off the AC unit and try to turn on the AC. When it has cooled down to a safe temperature, check the motor. Top 4 Problems Why the Blower Fan Motor Won't Shut Off! Continuously Runs! I go over why the Blower Fan Motor Won't Shut off/Continuously Runs and some of the most common reasons why the. This is to prevent a fire or burning of your clothes. i am a contractor. I want to be able to set the stove so that the distribution blower never shuts off and maxes out the heat to the highest possible. The FAN OFF setting lets the furnace blower continue to run for an interval after the furnace burner has turned off, but will shut the blower off after the heat exchanger has been cooled down to this temperature (usually 90 °F). If it fails to do so, however, you may find premature brush wear on the motor or, in extreme cases, melted blower housings. A condensing fan motor should never be too hot to touch and be overheating on any unit whether it be a heat pump, air conditioner, or split system. Now it comes on, but only for a minute, then it shuts off, then starts the cycle all over again. Problems in the carburetor, such as a stuck intake needle. The blower motor on my furnace gets hot, shuts down and smokes Hot enough for the overlimit switches to shut it down. The motor will start when it has cooled down, then stops running as described above. Question: our furnace fan runs but the furnace won't. Top 4 Problems Why the Blower Fan Motor Won't Shut Off! Continuously Runs! I go over why the Blower Fan Motor Won't Shut off/Continuously Runs and some of the most common reasons why the. my question is if you have a furnace blower motor that is exstremely hot and off on thermal and is not resetting because of excess heat would you wait for it to cool and try a capacitor replacement first or relace motor and capacitor. I have 28 vac from the thermostat. These diaphragms can warp after several seasons of use. Signs of an Overheating Blower Motor. Use caution, but check the blower motor to see if it is hot. I have ordered the FoMoCo controller module. I have 28 vac from the thermostat. Simply replace the belt to get the blower motor operational again. The new module will run in all speeds except the highestit will run for about 5 seconds and then the blower shuts off. Loud humming and other unusual noises. These diaphragms can warp after several seasons of use. Watch the fan limit switch dial during the system heat-up and you will have a better idea what's happening. This is to prevent a fire or burning of your clothes. It will be really hot to the touch it the fan isn't working properly due to the motor overheating. Having then removed the protective cover from the motor to investigate it became apparent that the motor was too hot to touch with my bare hand. It would start and run normally for a few minutes and then the blower would shut off. A condensing fan motor should never be too hot to touch and be overheating on any unit whether it be a heat pump, air conditioner, or split system. When it has cooled down to a safe temperature, check the motor. Now it comes on, but only for a minute, then it shuts off, then starts the cycle all over again. Your blower motor can give you some very clear signs of overheating, including: A "hot" or burning smell from vents in the home. This was easy to get to and replace and my last hope before waiting for someone to come fix it. I turn off the AC unit and try to turn on the AC. I turned it off and noticed a smell, the familiar smell of electrical equipment going 'poof'. Unit ran for about 2 1/2 hours and it was 71 in the house but the blower motor had stopped and the compressor was still running. It would run non-stop but you would have some AC until the heat wave tames and you can get things fixed up. Now, the furnace now starts and runs, but the new motor makes a "whining" sound, and the furnace shuts down after running a few minutes, before reaching the thermostat temperature. If you are checking an indoor blower motor, be sure to disconnect the power prior to checking. For about 5 minutes. Your blower motor can give you some very clear signs of overheating, including: A "hot" or burning smell from vents in the home. After 3-5 minutes, it seems to loose power and eventually shuts off. I have cleaned the ESP probe previously. Re: blower fan works for a whilethen quits?? Updated 7:05pm Eastern on 8/7/07 While this is not a good fix you might have someone that does electrical work rig up a power cord to the blower motor (If the motor is good) and plug it in. I have the motor out now and without testing it electrically, the bearings appear to be in good condition - the shaft turns freely and smoothly. later, the burner fires up and everything is great. Top 4 Problems Why the Blower Fan Motor Won't Shut Off! Continuously Runs! I go over why the Blower Fan Motor Won't Shut off/Continuously Runs and some of the most common reasons why the. BE EXTREMELY CAREFUL WHEN DOING THIS! A hot motor can and will burn you. After about 3 minutes, the burner shuts off and the blower motor turns on, simultaneously. Signs of an Overheating Blower Motor. If it isn't, it soon will be. Then the blower motor turns off, while the burner is still on. I want to be able to set the stove so that the distribution blower never shuts off and maxes out the heat to the highest possible. Watch the fan limit switch dial during the system heat-up and you will have a better idea what's happening. HVAC motors have thermal overloads to shut the motor off when it becomes too hot. After 3-5 minutes, it seems to loose power and eventually shuts off. Overheating: When this happens, the blower motor's thermal-protection device usually shuts the unit off. Unit ran for about 2 1/2 hours and it was 71 in the house but the blower motor had stopped and the compressor was still running. The motor will start when it has cooled down, then stops running as described above. Then at this point the evaporator coils tend to freeze (sometimes). This symptom is often coupled with the furnace shutting off completely. When this gets too hot the thermal fuse cuts the power to the motor and shuts the dryer off. I turn off the AC unit and try to turn on the AC. later, the burner fires up and everything is great. I have ordered the FoMoCo controller module. After checking the breakers, thermostat and overflow shut off (did not have one) I saw something about a blower motor capacitor. combustion blower runs constantly and will not turn off. All original parts still. When you have an airflow restriction or a cycling thermostat that has stuck closed, the blower housing will get too hot. If you are checking an indoor blower motor, be sure to disconnect the power prior to checking. Then, the blower motor seems to try to run every 10 minutes or so. Then at this point the evaporator coils tend to freeze (sometimes). Watch the fan limit switch dial during the system heat-up and you will have a better idea what's happening. The FAN OFF setting lets the furnace blower continue to run for an interval after the furnace burner has turned off, but will shut the blower off after the heat exchanger has been cooled down to this temperature (usually 90 °F). This warping will cause the fuel to stop moving through the entire circuit, and the engine will shut off. This time the compressor does not come on and fan does not come on. Simply replace the belt to get the blower motor operational again. Today the indoor temp was 74. The carburetor inside a leaf blower uses several plastic diaphragms to bring fuel into the carburetor, mix and measure the fuel and send it off to the cylinder. I have done all the maintenance and cleaning. This is to prevent a fire or burning of your clothes. When we first fired up the ac this year, the condensate drain was clogged and allowed water to run down all over the lower half of the updraft furnace. I have the motor out now and without testing it electrically, the bearings appear to be in good condition - the shaft turns freely and smoothly. i am a contractor. Signs of an Overheating Blower Motor. Why Does my Lawn Mower Engine Stall When it Gets Hot? doesn't get enough gas the engine will shut off. This was easy to get to and replace and my last hope before waiting for someone to come fix it. Simply replace the belt to get the blower motor operational again. It would run non-stop but you would have some AC until the heat wave tames and you can get things fixed up. Problems in the carburetor, such as a stuck intake needle. The easiest way to check this is to manually check the motor using your hand. If the fan motor gets too hot, it can cause the fan to act up and eventually shut off. I set the t-stat to 68. Loud humming and other unusual noises. I touched the motor housing and it is VERY hot - does not seem normal to me at all. Watch the fan limit switch dial during the system heat-up and you will have a better idea what's happening. While I wait for the new controller module, is there any ideas on why the module is getting hot?. Question: our furnace fan runs but the furnace won't. If it isn't, it soon will be. The lowest setting (blue arrow, the left end of the dial) is the "FAN OFF" temperature. Blower Motor I think I covered everything that has been discussed here but I still have the same issue. This symptom is often coupled with the furnace shutting off completely. The easiest and most common way to quickly tell is to place your hand on the top of it and it should be warm but if it is very hot (too hot to touch) then there is a problem. The AC will start out the day working great! Cold air blows out it will run for an hour or two and before it gets to temp the blower motor shuts off while the compressor continues to run. The blower motor has been over heating and keeps shutting down. No sputtering just keeps slowing down till engine shuts off. The distribution blower shuts off periodically and we can't seem to get the room as hot as we used to. Use caution, but check the blower motor to see if it is hot. Question: our furnace fan runs but the furnace won't. later, the burner fires up and everything is great. Now it comes on, but only for a minute, then it shuts off, then starts the cycle all over again. When we first fired up the ac this year, the condensate drain was clogged and allowed water to run down all over the lower half of the updraft furnace. Now, the furnace now starts and runs, but the new motor makes a "whining" sound, and the furnace shuts down after running a few minutes, before reaching the thermostat temperature. Then the blower motor turns off, while the burner is still on. If you are checking an indoor blower motor, be sure to disconnect the power prior to checking. Watch the fan limit switch dial during the system heat-up and you will have a better idea what's happening. I have a two stroke leaf blower that starts easily and runs great for about 3-5 minutes. This was easy to get to and replace and my last hope before waiting for someone to come fix it. Simply replace the belt to get the blower motor operational again. Re: blower fan works for a whilethen quits?? Updated 7:05pm Eastern on 8/7/07 While this is not a good fix you might have someone that does electrical work rig up a power cord to the blower motor (If the motor is good) and plug it in. These diaphragms can warp after several seasons of use. Then at this point the evaporator coils tend to freeze (sometimes). No sputtering just keeps slowing down till engine shuts off. A condensing fan motor should never be too hot to touch and be overheating on any unit whether it be a heat pump, air conditioner, or split system. Any suggestions as to the cause?. I have the motor out now and without testing it electrically, the bearings appear to be in good condition - the shaft turns freely and smoothly. Top 4 Problems Why the Blower Fan Motor Won't Shut Off! Continuously Runs! I go over why the Blower Fan Motor Won't Shut off/Continuously Runs and some of the most common reasons why the. It would start and run normally for a few minutes and then the blower would shut off. This warping will cause the fuel to stop moving through the entire circuit, and the engine will shut off. If it isn't, it soon will be. Now, the furnace now starts and runs, but the new motor makes a "whining" sound, and the furnace shuts down after running a few minutes, before reaching the thermostat temperature. Then, the blower motor seems to try to run every 10 minutes or so. Re: blower fan works for a whilethen quits?? Updated 7:05pm Eastern on 8/7/07 While this is not a good fix you might have someone that does electrical work rig up a power cord to the blower motor (If the motor is good) and plug it in. combustion blower runs constantly and will not turn off. These diaphragms can warp after several seasons of use. The blower motor has been over heating and keeps shutting down. my question is if you have a furnace blower motor that is exstremely hot and off on thermal and is not resetting because of excess heat would you wait for it to cool and try a capacitor replacement first or relace motor and capacitor. It will be really hot to the touch it the fan isn't working properly due to the motor overheating. No sputtering just keeps slowing down till engine shuts off. After 3-5 minutes, it seems to loose power and eventually shuts off. It feels very hot, so I am assuming it is cutting off due to heat. I did check some voltages on the board. The easiest way to check this is to manually check the motor using your hand. Now, the furnace now starts and runs, but the new motor makes a "whining" sound, and the furnace shuts down after running a few minutes, before reaching the thermostat temperature. Your blower motor can give you some very clear signs of overheating, including: A "hot" or burning smell from vents in the home. Then, the blower motor seems to try to run every 10 minutes or so. This was easy to get to and replace and my last hope before waiting for someone to come fix it. HVAC motors have thermal overloads to shut the motor off when it becomes too hot. Overheating: When this happens, the blower motor's thermal-protection device usually shuts the unit off. The carburetor inside a leaf blower uses several plastic diaphragms to bring fuel into the carburetor, mix and measure the fuel and send it off to the cylinder. Then at this point the evaporator coils tend to freeze (sometimes). Check for a blower fan that is not starting (bad motor, bad fan capacitor) or blocked airflow - conditions that allow the plenum to overheat and thus shut off the fan at the HI limit. This warping will cause the fuel to stop moving through the entire circuit, and the engine will shut off. When it has cooled down to a safe temperature, check the motor. I touched the motor housing and it is VERY hot - does not seem normal to me at all. I have done all the maintenance and cleaning. The FAN OFF setting lets the furnace blower continue to run for an interval after the furnace burner has turned off, but will shut the blower off after the heat exchanger has been cooled down to this temperature (usually 90 °F). If this is the case, then the first thing you should do is turn off your motor and allow it to cool. My AC fan motor turns off after 1 hour or so but compressor continue to run and gets hot. This wasn't the first time this had happened, so in thinking that the motor was spent, I replaced the blower motor and capacitor. heater works but blower motor gets very hot and will not allow condensation to run out thus causing the heater to no work properly. When the thermostat calls for heat, the blower motor comes on immediately. Now it comes on, but only for a minute, then it shuts off, then starts the cycle all over again. For about 5 minutes. I have 28 vac from the thermostat. Overheating: When this happens, the blower motor's thermal-protection device usually shuts the unit off. I shut the unit off. One of the most common problems is that the blower motor makes a humming sound. The lowest setting (blue arrow, the left end of the dial) is the "FAN OFF" temperature. The blower motor has been over heating and keeps shutting down. later, the burner fires up and everything is great. combustion blower runs constantly and will not turn off. I want to be able to set the stove so that the distribution blower never shuts off and maxes out the heat to the highest possible. i am a contractor. heater works but blower motor gets very hot and will not allow condensation to run out thus causing the heater to no work properly. Top 4 Problems Why the Blower Fan Motor Won't Shut Off! Continuously Runs! I go over why the Blower Fan Motor Won't Shut off/Continuously Runs and some of the most common reasons why the. I touched the motor housing and it is VERY hot - does not seem normal to me at all. Blower Motor I think I covered everything that has been discussed here but I still have the same issue. I have 28 vac from the thermostat. The blower motor has been over heating and keeps shutting down. After 3-5 minutes, it seems to loose power and eventually shuts off. After about 3 minutes, the burner shuts off and the blower motor turns on, simultaneously. I have cleaned the ESP probe previously. All original parts still. The distribution blower shuts off periodically and we can't seem to get the room as hot as we used to. This warping will cause the fuel to stop moving through the entire circuit, and the engine will shut off. Then, the blower motor seems to try to run every 10 minutes or so. This symptom is often coupled with the furnace shutting off completely. This wasn't the first time this had happened, so in thinking that the motor was spent, I replaced the blower motor and capacitor. BE EXTREMELY CAREFUL WHEN DOING THIS! A hot motor can and will burn you. This warping will cause the fuel to stop moving through the entire circuit, and the engine will shut off. When it has cooled down to a safe temperature, check the motor. After about 3 minutes, the burner shuts off and the blower motor turns on, simultaneously. Today the indoor temp was 74. I have done all the maintenance and cleaning. I have ordered the FoMoCo controller module. heater works but blower motor gets very hot and will not allow condensation to run out thus causing the heater to no work properly. Now it comes on, but only for a minute, then it shuts off, then starts the cycle all over again. BE EXTREMELY CAREFUL WHEN DOING THIS! A hot motor can and will burn you. A hot blower motor, which indicates an overheating problem, will. combustion blower runs constantly and will not turn off. my question is if you have a furnace blower motor that is exstremely hot and off on thermal and is not resetting because of excess heat would you wait for it to cool and try a capacitor replacement first or relace motor and capacitor. I changed the starting capacitor out because the fan would not start, it just made a humming noise like it was trying to start. One of the most common problems is that the blower motor makes a humming sound. I have the motor out now and without testing it electrically, the bearings appear to be in good condition - the shaft turns freely and smoothly. HVAC motors have thermal overloads to shut the motor off when it becomes too hot. These diaphragms can warp after several seasons of use. I turn off the AC unit and try to turn on the AC. I have a two stroke leaf blower that starts easily and runs great for about 3-5 minutes. I have the motor out now and without testing it electrically, the bearings appear to be in good condition - the shaft turns freely and smoothly. After installing the new motor I find that the fan spins much more freely. Then at this point the evaporator coils tend to freeze (sometimes). Loud humming and other unusual noises. Then the blower motor turns off, while the burner is still on. The distribution blower shuts off periodically and we can't seem to get the room as hot as we used to. The carburetor inside a leaf blower uses several plastic diaphragms to bring fuel into the carburetor, mix and measure the fuel and send it off to the cylinder. The AC will start out the day working great! Cold air blows out it will run for an hour or two and before it gets to temp the blower motor shuts off while the compressor continues to run. Why Does my Lawn Mower Engine Stall When it Gets Hot? doesn't get enough gas the engine will shut off. Re: blower fan works for a whilethen quits?? Updated 7:05pm Eastern on 8/7/07 While this is not a good fix you might have someone that does electrical work rig up a power cord to the blower motor (If the motor is good) and plug it in. Then, the blower motor seems to try to run every 10 minutes or so. Top 4 Problems Why the Blower Fan Motor Won't Shut Off! Continuously Runs! I go over why the Blower Fan Motor Won't Shut off/Continuously Runs and some of the most common reasons why the. A condensing fan motor should never be too hot to touch and be overheating on any unit whether it be a heat pump, air conditioner, or split system. After about 3 minutes, the burner shuts off and the blower motor turns on, simultaneously. A hot blower motor, which indicates an overheating problem, will. Watch the fan limit switch dial during the system heat-up and you will have a better idea what's happening. Use caution, but check the blower motor to see if it is hot. While I wait for the new controller module, is there any ideas on why the module is getting hot?. Check for a blower fan that is not starting (bad motor, bad fan capacitor) or blocked airflow - conditions that allow the plenum to overheat and thus shut off the fan at the HI limit. I noticed the motor is getting hot to the touch. How To 99- 07 Silverado Blower motor resistor replacement heater fan wont shut off Just a little video outlining how to fix the blower motor resistor or blower control module in a chevy truck when. Blower Motor I think I covered everything that has been discussed here but I still have the same issue. The AC will start out the day working great! Cold air blows out it will run for an hour or two and before it gets to temp the blower motor shuts off while the compressor continues to run. When you have an airflow restriction or a cycling thermostat that has stuck closed, the blower housing will get too hot. These diaphragms can warp after several seasons of use. It feels very hot, so I am assuming it is cutting off due to heat. I have ordered the FoMoCo controller module. combustion blower runs constantly and will not turn off. Your blower motor can give you some very clear signs of overheating, including: A "hot" or burning smell from vents in the home. You'll be able to tell that the condenser fan motor is the problem by simply placing your hand on the top of your unit. This was easy to get to and replace and my last hope before waiting for someone to come fix it. It would run non-stop but you would have some AC until the heat wave tames and you can get things fixed up. Loud humming and other unusual noises. I touched the motor housing and it is VERY hot - does not seem normal to me at all. This time the compressor does not come on and fan does not come on. If it isn't, it soon will be. The blower motor has been over heating and keeps shutting down. I have 28 vac from the thermostat. I did check some voltages on the board. The distribution blower shuts off periodically and we can't seem to get the room as hot as we used to. Unit ran for about 2 1/2 hours and it was 71 in the house but the blower motor had stopped and the compressor was still running. If the fan motor gets too hot, it can cause the fan to act up and eventually shut off. A hot blower motor, which indicates an overheating problem, will. The FAN OFF setting lets the furnace blower continue to run for an interval after the furnace burner has turned off, but will shut the blower off after the heat exchanger has been cooled down to this temperature (usually 90 °F). Now it comes on, but only for a minute, then it shuts off, then starts the cycle all over again. If it fails to do so, however, you may find premature brush wear on the motor or, in extreme cases, melted blower housings. Watch the fan limit switch dial during the system heat-up and you will have a better idea what's happening. heater works but blower motor gets very hot and will not allow condensation to run out thus causing the heater to no work properly. Then, the blower motor seems to try to run every 10 minutes or so. Then at this point the evaporator coils tend to freeze (sometimes). I set the t-stat to 68. Having then removed the protective cover from the motor to investigate it became apparent that the motor was too hot to touch with my bare hand. I shut the unit off. The blower motor has been over heating and keeps shutting down. Re: blower fan works for a whilethen quits?? Updated 7:05pm Eastern on 8/7/07 While this is not a good fix you might have someone that does electrical work rig up a power cord to the blower motor (If the motor is good) and plug it in. The distribution blower shuts off periodically and we can't seem to get the room as hot as we used to. This is to prevent a fire or burning of your clothes. Top 4 Problems Why the Blower Fan Motor Won't Shut Off! Continuously Runs! I go over why the Blower Fan Motor Won't Shut off/Continuously Runs and some of the most common reasons why the. The easiest and most common way to quickly tell is to place your hand on the top of it and it should be warm but if it is very hot (too hot to touch) then there is a problem. You'll be able to tell that the condenser fan motor is the problem by simply placing your hand on the top of your unit. Your blower motor can give you some very clear signs of overheating, including: A "hot" or burning smell from vents in the home. you have to gaurentee what work you do,so if the motor did reset and started up my fear is it may do the same thing and i am on the hook for. Problems in the carburetor, such as a stuck intake needle. A hot blower motor, which indicates an overheating problem, will. The easiest way to check this is to manually check the motor using your hand. When it has cooled down to a safe temperature, check the motor. No sputtering just keeps slowing down till engine shuts off. combustion blower runs constantly and will not turn off. Today the indoor temp was 74. The carburetor inside a leaf blower uses several plastic diaphragms to bring fuel into the carburetor, mix and measure the fuel and send it off to the cylinder. I turn off the AC unit and try to turn on the AC. When the thermostat calls for heat, the blower motor comes on immediately. Then, the blower motor seems to try to run every 10 minutes or so. The distribution blower shuts off periodically and we can't seem to get the room as hot as we used to. The blower motor on my furnace gets hot, shuts down and smokes Hot enough for the overlimit switches to shut it down. Now it comes on, but only for a minute, then it shuts off, then starts the cycle all over again. This symptom is often coupled with the furnace shutting off completely. My AC fan motor turns off after 1 hour or so but compressor continue to run and gets hot. The lowest setting (blue arrow, the left end of the dial) is the "FAN OFF" temperature. Why Does my Lawn Mower Engine Stall When it Gets Hot? doesn't get enough gas the engine will shut off. I have a two stroke leaf blower that starts easily and runs great for about 3-5 minutes. All original parts still.