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Blower is running but there is no heat - Heating & Cooling

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If you have electric heat its likely you have a bad limit switch. Meaning element got to hot and tripped the heat limit. If you have a meter that reads continuity you can test it.Good luck

Posted on Dec 07, 2016

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Heat works until thermostat calls for aux heat, then blower shuts off with outside unit still running.


Some blowers shut off depending on the system. Do you have electric hest strips inside? If not the blower will shut off. The outdoor fan should not be running if in defrost mode. If you have heat strips then you likely have low voltage wiring crossed

Dec 16, 2016 | American Standard Heating & Cooling

1 Answer

I have a Goodman phkj036-1f and the unit sounds like its kicking in and then right back out and not putting out any heat. A/C works like it should but heat doesnt


Sounds like the blower motor is wired to the load side of the A/C contactor relay/. In this condition the blower will only run when the compressor is running which is ok for a heat pump but if you are running electric heat only the blower motor needs one wire to the line side and one to the fan relay. That way the blower will run with heat or a/c. When the blower wont run the heat strips thermal protection will cycle them on and off

Nov 16, 2014 | Heating & Cooling

1 Answer

2002 cavalier, heat but blower not running


you may have a bad blower motor or bad resitor

Jan 24, 2013 | 2002 Chevrolet Cavalier Coupe

1 Answer

Amana heat pump emergency heat comes on but blower will not start. The call for heat comes in and the heating element(s) glow red for a few seconds and then there is a "click" and the heating...


Check the blower motor capicator. It should be mounted close to the motor with 2 wires to it (brown,brown/white).
Turn the blower on the thermostat and spin the squirrel cage by hand and see if it runs after by itself. If it does then definitely the capicator is bad .If it still doesn't run then check to see if there is voltage going to motor.
If thermostat is calling for fan and there is voltage present at the motor terminal then the motor is bad

Jun 01, 2017 | Heating & Cooling

1 Answer

My heat blower wont blow


Check blower motor relay or fuse. If not you may need a new unit.

Dec 25, 2012 | 2005 Dodge Durango

1 Answer

Replaced Thermostat and now Blower Motor will not run


Sounds like a set up issue on the tstat. You say this is a packaged unit, inside the machine you should find where the tstat wires hook up. Typically red is power yellow is compressor orange is reversing valve white is emergency heat green is blower. Put red and green together, test blower. Then red green and yellow, make sure blower works again. If blower runs both ways it's either the tstat wire or tstat itself. Make sure you are landing wires on dedicated heat pump terminals, make sure in settings you are set up for heat pump with back up electric heat and TSTAT CONTROLS THE FAN. Good Luck. Also if there is a switch on the tstat for gas or electric on the back you want electric.

May 12, 2017 | Heating & Cooling

1 Answer

When furnace runs blower won't run.as soon as furnace stops blower runs. They never both run.


Sounds like fan limit switch/fan timer

This will cause the main burner to run untill the over tempreture switch is tripped therefore shuting gas supply and running fan on high till over heat condition is resolved then it will restart burner and repeat
continuing to run heater like this will cause heat exchanger split.

May 13, 2010 | Heating & Cooling

1 Answer

Outside heating unit runs all the time


Usually when the furnace blower motor runs all the time
The limit switch or rollout switch is usually open or bad.
The furnace board is seeing that one of those switches is open, so it brings the blower on to try to get the heat out of the combustion chamber area, so the switch will close. But if the switch is bad and won’t close, the furnace board will keep the blower running continuously.

Feb 19, 2010 | Heating & Cooling

1 Answer

Heat comes on but not the blower doesnt run


Several things to check. Check fffffffan motor to see if it is trying to run. If so check the fan capacitor it may be bad. It may look swollenot oil on cap. If so it is bad. Also if you have fan board check it may be bad. Check motor first and if it is ok you most likely have a relay on the board.

Dec 03, 2009 | Heating & Cooling

1 Answer

GMPN 100-4 furnace. Blower motor runs when not calling for heat.


The board is bad. The unit thinks a flame is present, so it tells the blower to come on. Replace the board.

Oct 07, 2009 | Goodman Heating & Cooling

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