Working only on Aux, but not on Heat?
hi, I have an Emerson thermostat with the options heat and aux. When I put it on the option heat, the air from the furnace isn’t hot. But when I choose the option aux, the air is hot. Why is the heat option not working? Thank you!
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Do you know what type of heating system you have? Is it a heat pump? If so, the pump part isn't working. The auxiliary should kick in by itself on a differential.
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Thanks for the replies. It’s a new house that I bought so this is the first winter that I use it. I was told that only 2 out of the 3 (circuits/power) are working basically it should be 5+5+5=15 but it’s right now 5+5 =10 and that I can keep it like this it will use less electricity but take a little more time to heat the house.
Here are the pictures of everything:
Basically when I put the thermostat on the option heat then the air isn’t hot but I’m putting it on aux and the air is hot. I keep reading online that aux uses like 50% more electricity so that’s why I’m wondering if I should repair something or if it everything is normal. Thank you!0 -
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Ok thank you!
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It used to be a heat pump. Not any more. The thermostat and air handler need to be rewired so auxiliary pulls in the second set of heaters. It needs to be a 2 stage heat thermostat though.
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Thanks not sure I fully understand though…So do I need to do something? Or is everything functioning as it’s supposed to be right now with the current thermostat?
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The refrigerant lines are gone, so no more Heat Pump functionality, just electric resistive heat.
National - U.S. Gas Boiler 45+ Years Old
Steam 300 SQ. FT. - EDR 347
One Pipe System0 -
@Samnaa, it's working as well as it's going to right now. It used to be a "heat pump" system, which is an air conditioner that can works forward (normal AC, indoor part gets cold and outdoor part gets hot) and backwards (indoor part gets hot, outdoor part gets cold). That part has been removed, so all that's left is the electric heat. (No AC any more, either…)
You should get a few prices on the necessary repairs, depending on your electric costs you should save enough money with the heat pump vs the electric heat that you will recoup the investment rather quickly. Plus, you'll have air conditioning again.
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ok thank you everyone!
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I'm not sure if you NEED to do anything. All that's available is electric heat, and that's what you've got. What might help on the pocketbook is if there are 2 sets of heat strips. Then it can be wired for 2 stage heat. The first stage being the smaller of the two. There's (2) 2P breakers there, so it might be an option.
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