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The fan works but no heat is coming out of the unit

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Posted on Nov 23, 2014

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If you have a heat pump unit then yes because the AC is working in reverse and makes heat from the outside unit. If you know you only have electric heat only then no.

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Heil epm36f19a1 runs but no heat


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I have a Goodman a/c, furnace outdoor combo unit the the fan won't come on for the furnace. When I set the thermostat to heat, I can see the two heating coils come on, then glow bright orange for about 20...


To me it sounds like you need a fan limit switch to sense temperature increase and turn your fan on. At least you know that everything else is working. With out a schematic I can not tell you what type of limit this would be but I would look for a sensor either mounted right above the coils or beside them.
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The fan for the A/C should blow harder than in heat. The fan should be on high for cool and low for heat. You can change the heat setting for medium but I would not recommend it because it may make heat coming out feel less.

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Blower fan will not come on when set on Auto in heat mode.


the fan is controlled by a fan center or a stack switch. as burners light and heat up the spring sensor on the bulkhead above burners heats up and turns and a a point energizes the indoor fan if it gets to hot the burners go out on safty. sounds like a fan control is bad tap on them gently and they sometimes break loose but if not then have a pro replace fan control and test heat exchanger.

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1 Answer

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It sounds like the unit is going into a defrost cycle, which is normal for heat pumps and means all is working ok when it gets around 35 or colder they start to do this more often when the red light goes back off , the outdoor fan should come back on. You may also notice steam (may look like smoke) coming from outdoor unit. Is that what happens??

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