30L air compressor

Hi Alan. It should have a pressure switch to turn it off at a set pressure. This could be incorparated in the on/off switch. If so it will be connected down into the tank to sense the air pressure. Cheers,Bob.

The pressure switches have a diaphragm which sounds like it has ruptured allowing the air to escape inside the switch. Unless you are familiar with working on 240v best to get an electrician to look at it, you can buy the whole switch on ebay or elsewhere and have it replaced. Will probably cost more then the compressor cost originally though ;-))

Thanks for the replies.

It looks like a new compressor. What a waste of resources.

Alan

Hi Alan, many compressors incorporate an "unloader" which vents air between a non-return valve on the tank and the compressor delivery port. The unloader makes it easier for the motor to start, then closes the vent once the motor is up to speed. If the unloader is stuck in the open position then the compressor output will continue to vent and not build up pressure in the tank. This could be the cause of your problem.