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1st thing to do is turn off power to unit. if you dont do this you risk of burning up the transformer.. all thermostat wires are color coded. if you can pull the old thermostat off and match them to the new thermostat it shouldnt be a problem hopefully the tecnician who installed the unit hooked it up right but the color code should be this- R is RED that is your power wire 24v Y is YELLOW that is your cooling wire W is WHITE that is for your heat G is GREEN that is your operating the fan Those 4 are for straight heat and cool.. if you have a heat pump there will be an aditional wires which is- O is ORANGE wire that is for the reversing vavle some units also have a common wire and that is the BLUE wire.. That would be attached to the C terminal on a stat..

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Q: Replacing air thermostat for central air conditioner?
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Related questions

Your central air conditioner turns on but is not blowing through the vents?

If central air conditioner turns on but is not blowing through the vents, check the filter. If it is dirty, change it. Change the thermostat into cool, this will defrost the air conditioner.


Were does a thermostat gets its power from on a central air conditioner?

The furnace or air handling unit in the house.


Is the air on if you turn the fan on on a central air conditioner?

No. If your referring to the fan on switch on the thermostat. The answer is no only the indoor fan runs if the thermostat is properly wired.


Which air conditioner comes with a thermostat?

the Sunpentown WA-6591S Window Air Conditioner with remote has thermostat.


Air Conditioner Reviews?

form_title= Air Conditioner Reviews form_header= Stay cool with a great air conditioner! Do you want a window unit?*= () Yes () No How often do you use your air conditioner?*= {Daily, Weekly, Monthly, Other) Are you replacing an existing unit?*= () Yes () No Do you have central air?*= () Yes () No


Signs of bad air conditioner thermostat?

The air conditioner or heater continually runs.


Does an air conditioner use a thermostat?

Yes


If your air conditioner is set to cool why is it heating?

If your air conditioner is set to cool and it is heating you have a broken thermostat.


What are the ratings for your central air conditioner?

I do not own a central air conditioner. There are several websites though that offer reviews of central air conditioners. One of these websites is consumersearch.com.


What takes up more electricity - central air conditioner or window air conditioner?

Central of course because it is larger.


What can you do to make cold air come out air conditioner?

Drop the temp on the thermostat.


Why does your central air conditioner make a hissing noise?

because that air conditioner is full of air. It is letting the air out.