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check the contactor. the points are probably welded together caused by high voltage arcing.

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Q: What do you check if central air compressor keeps running when the stat is satisfied?
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Do you check the AC with the compressor running or not running?

with the compressor running.


What should you do when your central air compressor is running but the cooling fan is not working?

Check the capacitor located inside the outside condensing unit,usually the fan,compressor are wired together,if one is running the other should be running


Why isn't the air conditioner blowing cool air?

Is it a central unit? check and see if the fan and compressor are running in the outdoor unit. The system may be low on freon or the compressor may not be running. It is best to call a qualified HVAC technician.


Why is your outside ac unit blowing cool air?

the compressor is not running. Check your breakers.


How can you diagnose a small refrigerator compressor?

You probably will need to put a valve on that compressor unless it has a port already. Then you hook up your guages and check the pressure. Do you know if the compressor is running or not?


Why would the central ac blow cold air for about 30 minutes then start blowing hot air but the unit isn't frozen and is full of refrigerant?

It could be that the unit is overcharged and the compressor is shutting down on overload. Check to see if the compressor is running when the hot air starts blowing.


Why is your ac in your 98 rodeo not blowing cold air?

Look to see if the compressor is running when the ac is on. If not, then check the Freon pressure, as the compressor won't run if the Freon is low.


My Central air conditioner is making a louder humming noise then usual and is not blowing cold air It was working in the morning then stopped blowing cold and got noisey in the afternoon help and ty?

check and see if evaporator coil restricted, coil frozen, if not check pressures sounds like unit running but not shutting down, if coil frozen oil may be carried from compressor and leaving compressor with no lubrication repair before burning out compressor.


How do you check compressor?

First check the pressure of low and high side, for R22 they should be around 60 and 250 respectively. Second check the temperature of the compressor by touching it lightly from bottom to top. where you can feel the level of oil present in it Third .(Cut the power supply before touching it) if the compressor is not running at all, check the electric continuity between terminals and body, if no connectivity is checked then check resistance between terminals of compressor


What does it mean when the AC in a 1998 Honda Accord EX just blows out hot air but the freon is full?

Compressor not running? Check fuses, check switch


Does your air conditioner need freon if it is blowing hot air?

More than likely. Ensure the outdoor unit is running and that the compressor is running. Also check your filter.


Air conditioner compressor is not running?

You have only two this that can cause this and you need to first check to see if there is any freon in the system and if so then check the a/c electrical system..........