Question about Campbell Hausfeld 26 - Gallon Air Compressor

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Air leakage through pressure switch needle

When the compressor stops it starts to release air through the pressure switch needle.Air releasing only stops when pressure goes down to cut in pressure,where the compressor restarts.

Condor Model MDR-21 (General Model SWP60401U-C)

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1)Let your unit pump up.
2)Turn it off.
3)Find the supply line from the pump to the tank.
4)Remove the supply line from the pump head.
5a)If you hear air coming from the tank you have a bad check valve.
5b)If you do not hear air coming from the tank, you have a leaky
pressure switch.

Posted on Feb 02, 2009

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