Question about Honeywell Programmable Thermostat Heater

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I installed a Honeywell RTH230B model thermostat. The heat works fine, but the AC is blowing warm air. Wires from old system are as follows: Y=yellow; G=green; R=red; O=brown; C=blue; E=white (it looked like the white wire was looped around the E and hooked to the W2). The connectors on the RTH230B are: Rh & Rc with jumper; W; Y; G. What wires go where? The diagrams in the instruction book are of no help.

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The colors of old system are for heat pump.if you have a heat pump you need heat pump thurmostat and colrs will make more sense.if not,then you need to go into furnace to see what colors go where.yellow is cool, goes to compressor contactor,usually another wire going from furnace to outside unit.green is fan relay rh is heat call rc is cool call

Posted on Jan 01, 2011

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Posted on Jan 02, 2017

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