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Thermostat wiring I have a Frigidaire Model R4GA FWA and Central A/C system. I am trying to replace the thermostat with a programable Hunter model. I do not have the original wiring diagram and the old thermostat is no help. The wiring colors I have is Green, Red, Brown, Yellow, White and Orange-(not used). The terminals on the new thermostat are RH, RC, Y/O, W/B, G, and Y1.

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  • wlfpack1 Oct 22, 2008

    I'll give it a shot - Thank you

  • Anonymous Dec 13, 2008

    tengo un furnace que enciende normalmente,pero luego que se apaga el ventilador ,los quemadores se encienden pero al mismo tiempo se apagan y apagan el piloto.

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Your best bet and where i would start is to identify where the coulors are conected at the fernace. in the industry we use standard wireing coulors wher green is g for fan and red is rh=switched trans power for heating . rc=switched transformer power for cooling . now normaly there is only one transormer so you would put a jumper from rc to rh and conect the red wire from the furnace to eather of these.jumper installed. the y is your cooling witch is normaly the yellow wire. o on the stat is for a heat pump if you nead to energize reversing valve in cooling mode . w is first stage heating and this can be conected to eather brown or white youll have to check at the furnace to see witch it is . the final wire eather brown or white should be conected to c or 24v common witch you didnt say you see on the thermostat. once again
red to rc and rh
green to g
yellow to y
brown or white to w
brown or white to common or c


please post feadback hope i was of help

Posted on Oct 21, 2008

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