P
pendragon
Guest
Only my second post and I am still in trouble! I have built a compressor using a fridge motor but it refuses to behave so I have done something wrong. The air goes from the fridge motor to a check valve which is fitted to the pressure tank. The check valve is also connected to the unloader valve on the pressure switch. When I turn the thing on air goes into the tank but also blows through to the unloader valve so releasing air constantly! It seems that the unloader valve is permanently open whether the power is on or off and I have tested this by blowing through the tube. I spoke to the man who sold me the pressure switch and he said it was the check valve. Changed the check valve and same problem occurs. Can anyone help please - I have googled through the night with no luck - simply cannot find any detailed explanation of how the unloader valve actually works. I can try to send some photo's if that would help. Many thanks.