[Ben Juarez]

I have a window A/C unit that just stopped cooling. I have tried turning off and then on, but not working. Also tried adjusting temp and speed as well as cleaning filter. Fan is working fine. Any suggestions?

[PS Volunteer - Appguy]

You will need a meter to check. Pull control panel and check for power to compressor when selector is in cool mode. If no power you have a bad selector switch. If power, check current flow. If none, you probably have a blown compressor, or overload on the side of the compressor. Check compressor windings with ohmeter. If any open, you have a blown compressor.

[asdeibel]

I have the same issue but do not understand how to go about this repair, could you explain in a little more dumbed down terms?

Thanks

[PS Volunteer - Appguy]

Remove front panel screws and knobs. You should find a schematic there. Refer to that for testing info.

[dvyne]

I have a similar problem my air conditioner work fine in fan mode but when I use cool mode it still blows warm and it pulsates frequently like it wants to stop. Does anyone have any idea what the problem might be?

[PS Volunteer - Appguy]

From the syptoms, you have a bad start relay or bad compressor. Need to take cover off side of compressor and pry off the black box, if bad it has no continuity.