3Z355 Speedaire compressor won't restart

by John Rybiski
(Wayland, MI )

I have a model 3Z355 Speedaire compressor. Here is my problem. The compressor builds the set pressure and shuts off, but when the pressure drops to the kick in point the motor tries too run but it doesn't have enough power too turn the compressor.

If I let more pressure off the motor will turn the compressor. Do I need a new PRV on the tank.

Hi John:

From the sound of it, you need to check out your unloader valve.



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