Campbell Hausfeld CW207542AV Air Compressor Pressure Switch
Description
Dimensions:
- Weight: 2 lbs
More Information:
The Campbell Hausfeld CW207542AV Air Compressor Pressure Switch is responsible for automatically controlling compressor start and stop cycles based on tank pressure. When this switch becomes faulty or miscalibrated, the compressor may lose automation control, leading to unsafe operation or performance instability.
Common Symptoms Related to this Part:
• Compressor does not shut off at preset pressure.
• Unit fails to start when tank pressure drops.
• Frequent short-cycling (rapid ON/OFF behavior).
• Burnt or clicking noise from switch housing.
• Inconsistent tank pressure readings during operation.
Compressor Does Not Shut Off at Cut-Out Pressure
Quick Check: Observe if the compressor continues running past maximum tank PSI rating.
Fix Suggestion: Inspect the CW207542AV pressure switch diaphragm for wear or sticking, Replace the switch if internal calibration is no longer responsive.
Prevention Tip: Avoid exposure of the switch housing to dust, oil mist, or moisture buildup.
Compressor Fails to Start at Low Pressure
Quick Check: Check whether the tank pressure drops but the motor remains inactive.
Fix Suggestion: Verify electrical contacts inside the CW207542AV switch are not burned or stuck, Replace the pressure switch if contact points are worn or fused.
Prevention Tip: Ensure proper voltage supply and avoid overloaded extension cords.
Rapid Short Cycling (Frequent ON/OFF)
Quick Check: Observe compressor turning on and off in very short intervals.
Fix Suggestion: Inspect the pressure sensing mechanism inside the CW207542AV for unstable readings, Replace the switch if internal spring tension is inconsistent.
Prevention Tip: Check for air leaks elsewhere in the system that may trigger false pressure drops.
Air Leakage from Pressure Switch Area
Quick Check: Apply soapy water around switch connections and fittings.
Fix Suggestion: Tighten threaded connections and inspect built-in unloader valve seal, Replace the switch if housing cracks or internal valve failure is detected.
Prevention Tip: Do not overtighten fittings during installation to prevent housing damage.
Customer Experience: After replacing the CW207542AV, the compressor shut off at the proper pressure again and operated much more consistently during daily use.
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