Air Compressor Pressure Switch Repair

30 Year old compressor that need fixing.

Category:

Howto & Style

Tags:

• Compressor
• Repair
• repair
• howto
• how-to
• diy
• air compressor
• campbell hausfeld
• pressure Switch
• paisteboy
• gauge
• replacement

[mythril4]

Watch out for that tank, it may be a very dangerous tank by now. Old tanks like that, especially those ones (being non-industrial) corrode on the very bottom. Over time the corrosion turns the metal very thin, this makes the tank prone to rupture. Check valves should also be cleaned annually or bi annually, they get very hot, old pumps spew a bit more oil, this creates an ignition point if the oil mists in the tank. It's rare, but does and has happened more then once.

[paisteboy]

@mythril4

Thanks. I'll keep that in mind.

[jp2son]

Third, Put a meter on it to see how many amps it is drawing. Check your breaker capacity as well. Keep in mind that just because a breaker resets, doesnt mean it is good. Hope it works out for Dads old compressor! I know how it is... good luck and have fun, J

[paisteboy]

@jp2son

Yeah,  that's a good idea. Thanks for watching.

[chuckdavidson87]

could be that the check valve is not seating, causing back pressure. There should be one coming out of the comressor head.

[paisteboy]

@chuckdavidson87

I'll look into that.  Thanks for tip and for watching.

[retcru]

Is that a start capacitor-black or a run capacitor- silver on the motor. Check amperage draw. it should be 17.5-18amps under load if its higher. check the centrifugal switch. sometimes the contacts get dirty or burned. other than that it could be the capacitor.

[robbie4035able]

@jp2son dont use a long cord if you do use heavy guage wire . the motor may have some burnt wires in the winding switch is fine.

[P1001AT2]

try hooking up your compressor whit out your regulator and see if the breker pops also check if the motor is getting hot

[ray704ful]

@utubejohnny1 try a new pressure switch sounds like your diafram has a hole in it.

[ray704ful]

22 amp breaker needed

[utubejohnny1]

What if the compressor, just keeps pumping and the tank won't fill? what should I do?

[ryanpalgood7]

@jp2son

Your first pressure switch was the correct one. You have it wired incorrectly. There are two contacts with two screws on each contact. Which are L1 and L2 Looking at the top. First two screw are for either you black or white and same for the black. Just make sure each black an white are paired with each other.