Campbell Hausfeld IN629500AV, WL6700 Series Troubleshooting Guide, Symptom Cause Solution

Operating Instructions and Parts Manual

Troubleshooting Guide

Symptom	cause		solution
Compressor will not run	1.	No electrical power	1.	Plugged in? Switch on? Check fuse/breaker
	2.	Breaker open	2.	Reset, determine cause of problem
	3.	Pressure switch bad	3.	Replace
	4.	Motor over worked	4.	Turn off, let cool, turn on.
	5.	Tank pressure above cut-in	5.	Bleed tank pressure down to cut-in.
Fuses blow/circuit breaker	1.	Incorrect size fuse, circuit overloaded	1.	Check for proper fuse, use time-delay fuse.
trips repeatedly				Disconnect other electrical appliances from circuit
				or operate compressor on its own branch circuit
	2.	Worn check valve	2.	Replace
					Do not disassemble check valve with
					air in tank; bleed tank

Tank pressure drops when	1. Loose connections (fittings, tubing,
compressor shuts off	etc.)

1.Check all connections with soap and water solution. Tighten; or remove and apply pipe dope or pipe tape to the threads, then reassemble.

	2.	Open tank drain	2.	Close drain
Air output lower than	1.	Air leaks in piping (on machine or in	1.	Check all connections with soap and water
normal/low discharge		outside system)		solution. Tighten; or remove and apply pipe dope
pressure				or pipe tape to the threads, then reassemble.
	2.	Piston ring worn	2.	Replace
	3.	Excessive air usage	3.	Decrease air usage; compressor not large enough
				for air requirement
	4.	Open tank drain	4.	Close tank drain
Excessive moisture in	1.	Excessive water in tank	1.	Drain tank
discharge air
	2.	High humidity	2.	Move to area of less humidity; use air line filter
Compressor runs	1.	Defective pressure switch	1.	Replace switch
continuously
	2.	Excessive air usage	2.	Decrease air usage; compressor not large enough
				for air requirement
Motor runs but no air output	Belt worn		Replace belt

18www.chpower.com