The pressure switch controls when the compressor starts and stops, so a fault causes wrong pressure or constant cycling.
Symptoms of a Bad Switch
The compressor runs past its setpoint, fails to restart, or cycles at the wrong pressures.
Checking the Switch
Verify the setpoint, inspect contacts for burning and confirm the sensing line is clear and not blocked.
Replacement and Adjustment
Set the switch within the compressor’s rated range, and replace a switch with pitted or sticking contacts.
Contact us for pressure switches and control components.