Question about Ruud UBHC Air Conditioner
Ruud model# URGG-07N48JKR mfd in 03/89 is blowing only cold air when in heat mode. Is this a single phase heat pump? I changed t-stat (Hunter model# 44360) and believe I wired correctly. 4 wires:
1) T1 to T1
2) G to G
3) RH and RC jumpered together
4) W1 on old t-stat to W/B on new t-stat
Switches on back set to HP(believing I have a heat pump) and HG (fan works fine in HG)
Still only cold air blows when in heat mode. Any advice??
Do you have gas or electric heat. If you have gas then you do not have a heat pump. You should in most cases have a red,yellow, white, and green wires coming to the thermostat. R should go to rc/rh G should go to green Y should go to Y and w should go to W. Also the switches on back should be switched to non heat pump and gas rather than electric. Hope this helps.
Posted on Feb 16, 2009
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Posted on Jan 02, 2017
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