My central air stalled out. The fan was moving freely when I pushed it so I replaced the capacitor. It then worked for a while and the fan motor seized. I replaced the fan motor and it ran for about 2 min and the unit stalled out again so I shut it down before it burned out the new fan motor. Any ideas on what else could be causing the unit to stall?

Check the voltage coming into & going out of the contactor. For most residential equipment, you should be reading somewhere around 230 volts.

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Originally Posted by Grady White

Check the voltage coming into & going out of the contactor. For most residential equipment, you should be reading somewhere around 230 volts.

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Thanks Grady... my voltage seems to be good. What happens now is the blower fan starts up fine, but then in about 20 seconds, I hear the compressor start to kick on which causes the whole unit to stall.