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Thread: No Heat!
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10-28-2008, 11:29 PM #1
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No Heat!
I installed a new programmable thermostat last spring, a Hunter 44860. It cools perfectly but will not come on for heat. At the time I thought it was wired correctly, but cannot be sure now. It works perfectly if I switch it to cool. When I switch to heat, I cannot even get the blower fan to run. It is an electric 7-wire heat pump system. Here is how I have it wired:
Wire - Terminal - Usage
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Yellow - Y1 - Compressor Stage 1
White - W2 - Aux Heat
Green - G - Fan Control
Red - RC\R - 24VAC
Brown - C - 24VAC Common
Orange - O - Reversing Valve Cool
Black - E - Emergency Heat
There are no jumpers, and there were none on the old thermostat if I recall correctly. Can anybody help me?Last edited by arstacey; 10-29-2008 at 12:00 AM.
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10-28-2008, 11:33 PM #2
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10-28-2008, 11:35 PM #3
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Yes, there is in the systems settings. It was originally set to conventional but I changed it to heat pump and it is set correctly for electric.
The heat worked last winter and the home is only a year old, so hopefully it is not the system
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10-28-2008, 11:45 PM #4
I did not see you linked to another site in your post, I would go back and edit that, you can bet the Mods here
will not be happy to see that, just like to see you get off on a good start.
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10-29-2008, 12:00 AM #5
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10-29-2008, 05:33 AM #6
Sorry, this is not a DIY help site, you need to call a pro for help. Good luck, let us know what it was!



