Campbell Hausfeld IN203203AV 11/00 operating instructions WL Series

						WL Series
Troubleshooting Chart (Continued)
Symptom	Possible Cause(s)			Corrective Action
Tank pressure drops	1.	Loose connections (fittings, tubing,	1.		Check all connections with soap and water solution
when compressor shuts		etc.)			and tighten
off	2.	Loose drain cock	2.		Tighten
	3.	Check valve leaking	3.		Disassemble check valve assembly, clean or replace
						Do not disassemble check valve
				! DANGER
						with air in tank; bleed tank

Air output lower than normal/low discharge pressure

1.Clogged intake filter

2.Air leaks in piping (on machine or in outside system)

3.Broken inlet valves

4.Piston ring broken

5.Cylinder or piston ring is worn or scored

1.Clean or replace

2.Replace leaking components or tighten as necessary

3.Have authorized service representative repair unit

4.Replace

5.Replace

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

Excessive starting and stopping (auto start)

1.Excessive condensation in tank

2.Air leaks in piping (on machine or in outside system)

3.Tank check valve leaking

1.Drain more often

2.Replace leaking components or tighten as necessary

3.Replace or repair as necessary

	Do not disassemble check valve
! DANGER
	with air in tank; bleed tank

Air leaking from	Check valve stuck in an open position	Remove and replace check valve
unloader on pressure
switch			Do not disassemble check valve
		! DANGER
			with air in tank; bleed tank

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