Airbrush Compressor Repair | Airbrushing Compressor Leaking And Not Holding Pressure

One of our valued customers returned their airbrush compressor to us for a paid for repair as it was leaking and would not hold pressure.
The airbrush compressor shown is one of our old models which we have not stocked for over a year but we wanted to help out the customer and get him back to airbrushing.
The price quoted was for replacement of the compressor air tank as it had a pin hole in it which was the cause of the leak. I also replaced the air feed pipe and main one way valve which can become sticky after prolonged use.
The main one way valve is situated at the top of the air outlet pipe and is made up of two parts. These parts unscrew to reveal the inner workings which is a small plastic plug on a spring. When working correctly the spring, coupled with back pressure from the air tank, cause the plastic plug to sit tightly in the neck of the valve preventing pressurised air from escaping back to the compressor head.
A faulty one way valve is often the main cause for a compressor not reaching pressure or becoming overheated and cutting out. The inner plug has to be free to move and easily block air from travelling past and back to the compressor head. If it isn't then the compressor is constantly fighting the back pressure leading to overheating.
Further inspection showed that the air pressure regulator had been knocked causing the pressure gauge to be out of central alignment and also leaking from the gauge face. This was replaced also.
Having gone this far I thought I would check the compressor head, piston chamber and piston...
The compressor head plate (red) has a black one way valve in it which allows passage of air from the piston through to the compressor head and then along the air outlet, through a further one way valve and, finally, into the air tank. If the black one way valve has any build up of dirt on it it will impede air flow and may, if in a really bad condition, not sit correctly against the face plate allowing air to escape back towards the piston. This causes increased run time and overheating. The head plate was replaced with a new one.
I also inspected the piston head and saw that again, and as expected with a used compressor, had signs of wear. The compressor is oil-less and uses contact between the piston head and piston chamber to create an airtight seal to compress the air. I replaced this item with a new one.
The piston chamber had a small amount of build up on it which, again, is expected with a used compressor... this was replaced with new but didn't really need it as a good clean would have been ok.
Having replaced all of the above parts I put the airbrush compressor through a test run, auto start / stop worked and mode 2 (constant pumping) all worked perfectly. The leaks had been fully sorted.

If you are looking for an airbrush compressor then please consider the BARTSHARP Airbrush range. Our airbrush compressors are available with or without air tank and varying features. All of our compressor have an inbuilt electric fan which is often the weak point for small compressors and often problems of overheating and the auto safety thermal switch cutting in preventing further work until the compressor has cooled down.
All stock is UK based and ready for immediate next business day UK delivery if ordered before 11am.
https://www.bartsharpairbrush.co.uk/a...

We also have an incredible range of airbrush spray booths; available for next business day UK delivery.
https://www.bartsharpairbrush.co.uk/p...


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