Quote:
Originally Posted by cfo111
sounds like the capacitor is bad it's location is under your plastic cover on roof. You should see it next to housing clamped to it you can test it with a multi meter
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Umm, I've seen a lot of motor capacitors. When they go bad, the motor doesn't run at all--it sits there and hums.
The OP's unit runs for a while and stops--apparently the compressor motor stops AND then the blower motor stops after a delay. This does NOT sound like a capacitor problem. The electronics board normally causes the blower to run after the compressor stops. This scavenges the last of the cooling from the evaporator and also dries things to minimize mold growth. That's all normal.
The problem is that something in the control system is shutting the system down. Low refrigerant? Bad sensor someplace? Could be. But not likely to be a bad capacitor.
EDIT: I am not an HVAC guy. But I do know that low refrigerant can cause the unit to ice up internally. If that happens it could shut down. Five minutes later the restriction is gone and the pressures have equalized and it could start again.