Help! My compressors wont shut off!

[24c3]

the pressure switch is set to cut off at 150psi. i dont have a guage on the tank so i dont know how much pressure is actually building or putting out. I do know that i can lift it all up drop the front and have enough pressure to lift the front to ride hieght before the air runs out.

I didnt install my set up.... but the plan is to take the bed off next week and redo the wiring, replace the relay and pressure switch , add two more valvues(6 total), and gauges for the front back and tank, and remount the compressors with rubber groumets.

 

[24c3]

Check the relays, they could be stuck.

how do i check the relay?

 

[BHBurban]

Disconnect it for starters. If they shut off, there's your problem. To check it, see if the power pulls down from the leg of the relay (typically #87) that turns the compressors on when you you turn the key/compressor switch off.