MY AIR CONDITION ONLY PUT OUT WARM AIR EVERYTHING SEEMS TO BE OK FILTER TURNS ON OK BUT THE OUTSIDE UNIT HUMS BUT DOES NOT FAN
AIR CONDITION DOES NOT WORK IT ONLY PUT OUT WARM AIR ALTHOUGH EVERYTHING WAS CHECKED AND THE ONLY PROBLEM IS WITH THE OUTSIDE UNIT WITH BEING TURNED ON THE ONLY THING IT DOES IS HUM BUT THE FAN DOES NOT SPIN
Re: MY AIR CONDITION ONLY PUT OUT WARM AIR EVERYTHING...
Sounds like you have a bad t-stat see what kind of system you are running ie. heat pump staight air gas then get that kind of t-stat. turn off power to units and replace make a note of what wires go where.
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check filter replace if necessary --if coil behind is iced up let unit thaw dont scrape and when thawed use a spray bottle with some dish washer soap and spray down coil to clean it --if coil is warm or room temperature low on freon or compressor malfunction
Can you see the condition of the coil itself? If it is blocked this could be a cause for the frozen coils. Also, check the condition of the blades on the indoor fan. Dirt and dust accumulation on the blades reduces airflow.
Make sure the outside unit is running, compressor and fan. Sometimes it is hard to hear the compressor over the fan. If the outside unit is not working check circuit breakers first. Set thermostat to call for a/c and make sure the contactor in the outside unit pulls in. If it does check capacitor for whatever is not running. If everything seems to be running fine hold your hand above the fan outside. The air coming from it should be hotter than the outdoor air. If it isn't get the refrigerant charge checked.
If you have power to the unit and the contactor is pulling in ( low voltage side ) and neither compressor nor the fan comes on it could be 1 of 2 problems first check the wiring a mouse may have chewed through one of them, or 2nd your capactor is bad.
The first problem sounds like the wiring is wrong up at the heating unit not turning on the blower fan in the heater when you call for cooling. Most typical is either something has chewed the wires or the wires have been stripped b something else. The AC not cooling your house can be either it is low on freon or the system is to small for your house. Also check your filter and make sure that it is not blocked and everything is clean with the filter
Even when the power is off at the unit outside the thermostat will supply power to the contactor of the outside unit. This may give a hum or buzz as you stated. If when the power is on to the outside unit the fan tries to start but only hums the motor may be bad. Does the compressor start and run?