Husky air compressor C331H

6 years 8 months ago #2122 by Gary1950
Husky air compressor C331H was created by Gary1950
My air compressor runs and builds air the only thing is that it keeps running until I turn it off also air tank gauge doesn't register air but the tool pressure gauge does also leaks air by the red knob someone told me it could be the manifold any help will be appreciated thank you

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6 years 8 months ago #2123 by MTR-Admin
Replied by MTR-Admin on topic Husky air compressor C331H
Thanks for the post Gary1950,

It does sound as though your Regulator Manifold (part# E106920) is leaking and may need to be replaced.

FYI, you can view a full parts breakdown and parts list for this unit by clicking on the below link:

mastertoolrepair.com/portable-oil-free-a...-c331h-p-659129.html

If the unit pressurizes but never reaches the max PSI so the pressure switch shuts the unit off, it's due to one of two things:

1. The reed valves or piston ring in the oil-free pump is defective.
2. There is an obvious air leak.

It sounds like you have an air leak around the air regulator. You can try and remove the air regulator knob (after you drain the tank of air) and possibly clean it of debris and lubricate the internal components to see if that stops the leak. If not, you'll have to replace the manifold/Regulator Assembly.

Hope this helps!

- MTR

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