Jun-Air Compressor Fault

[jamesgates1000]

Thanks for the quick reply m_c sorry I only just had a chance to reply, got a replacement compressor and just left the other to get some rush jobs done. When I said it tries to start, it makes a noise, the light comes on but doesn't start the motor. My compressor doesn't have any of the top pieces that you mention, I have attached a couple of pictures,
think that the unloader valve might be inside the pressure switch.


And now I have problems with the tool changer not indexing either! I'm sure problems always come in threes so just waiting for another!