It is the heat transferred (by way of the freon) from inside the house and the heat of compression.Which should only be 20 degrees above ambient(out door temp)
yes but id u dont want to waste the engery open the door
no
yes, if the ac unit has 2 zones, you will need a thermostat for each zone. if the ac unit provides both ac and heat, you can connect a thermostat for each. not a good way to go. better to use 1 therm in that case that has a heat-cool switch on it so the unit is not putting out both heat and ac at the same time.
The ac unit compressor will run when it is in defroster mode and heat setting is on.
There is an air mixture door inside the heat/ac unit under the dash. It may be stuck on heat or, like in my case, broken.
Your location matters. If in Florida heat pump in more northern climes furnace & ac.
If your a/c or heat is acting up. Then is the blender door problem. Blend Door Problem Check related link below for more info.
Your air mix door is stuck, follow the cable from the temp control to the heater/ac unit and see if the flapper is moving, if not the door itself may be stuck or broken and you'll need to get in there and replace it.
do you have a heat pump? are you running unit in heat? if so and the steam is comming from outside unit, this is normal in the units defrost cycle
No the out side fan is for venting heat away fromt he unit.
need to change condensing units. from cooling only to heat pump
the fan on the condesenig unit (out side part) of a hvac system will only run when you are in the cooling cycle, unless you have a heatpump , then it will run in the heating cycle also