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Pressure switch bleed off
- johninreno
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9 years 5 months ago #1064
by johninreno
Pressure switch bleed off was created by johninreno
I just purchased and installed a 034-0195 pressure switch and it starts bleeding off air as soon as the pump stops.
It runs until the pressure gauge shows 160 psi and stops. Then, with nothing attached to the compressor, it bleeds air from the back of the switch until it gets to 130 psi and starts the pump again.
This does not seem like the correct behavior.
john
It runs until the pressure gauge shows 160 psi and stops. Then, with nothing attached to the compressor, it bleeds air from the back of the switch until it gets to 130 psi and starts the pump again.
This does not seem like the correct behavior.
john
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9 years 5 months ago #1065
by MTR-Admin
Replied by MTR-Admin on topic Pressure switch bleed off
Thanks for the post John.
If you hear air leaking out of the 1/4" pressure release valve that is located on the side (or bottom) of your pressure control switch, and/or it seems that your compressor is struggling to start and run, then your check valve is probably defective. This is the valve that's typically threaded into your main tank inlet that keeps the pressure in the tanks. It's probably back-feeding into the line and out through this valve.
You can find it by following the main transfer tube from your pump head where it enters your tank: this is where your Check Valve is located.
You can also watch a video that explains this if you'd like to, just click on the below link:
www.mastertoolrepair.com/how-to-test-check-valve-p-22524.html
You can try cleaning it, if that doesn't work then replacing the Check Valve will fix the problem.
- MTR
If you hear air leaking out of the 1/4" pressure release valve that is located on the side (or bottom) of your pressure control switch, and/or it seems that your compressor is struggling to start and run, then your check valve is probably defective. This is the valve that's typically threaded into your main tank inlet that keeps the pressure in the tanks. It's probably back-feeding into the line and out through this valve.
You can find it by following the main transfer tube from your pump head where it enters your tank: this is where your Check Valve is located.
You can also watch a video that explains this if you'd like to, just click on the below link:
www.mastertoolrepair.com/how-to-test-check-valve-p-22524.html
You can try cleaning it, if that doesn't work then replacing the Check Valve will fix the problem.
- MTR
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