Troubleshooting Chart; Troubleshooting Guide - Campbell Hausfeld CT1001 Manual De Instrucciones

Troubleshooting Chart

SYMPTOM CAUSE
Compressor will 1� No electrical power
not run
2� Blown fuse
3� Breaker open
4� Thermal overload tripped
5� Pressure switch bad
6� Check valve defective
Motor hums but 1� Poor contacts, line voltage incorrect
cannot run or
2� Shorted or open motor winding
runs slowly
3� Defective check valve or unloader
Fuses blow/ 1� Incorrect size fuse, circuit overloaded
circuit breaker
trips repeatedly
2� Defective check valve or unloader
Thermal overload 1� Low voltage
protector cuts out
2� Clogged air filter
repeatedly
3� Lack of proper ventilation/room
temperature too high
4� Check valve malfunction
Knocks, rattles, 1� Leaking, broken, or loose valves or
excessive restricted air passage
vibration
2� Defective pressure switch unloader
3� Defective bearing on eccentric or motor
shaft
4� Cylinder or piston ring is worn or scored
5� Loose bolts, tank not level
Tank pressure 1� Loose connections (fittings, tubing, etc�)
drops when
compressor shuts
2� Loose drain valve
off
3� Check valve leaking
Air output lower 1� Clogged intake port
than normal/
2� Air leaks in piping (on machine or in
low discharge
outside system)
pressure
3� Broken inlet valves
4� Piston ring broken
5� Cylinder or piston ring is worn or scored
Excessive 1� Excessive water in tank
moisture in
2� High humidity
discharge air
Compressor runs 1� Defective pressure switch
continuously
2� Excessive air usage
Excessive starting 1� Excessive condensation in tank
and stopping
2� Air leaks in piping (on machine or in
(auto start)
outside system)
3� Tank check valve leaking
Air leaking from Check valve stuck in an open position
unloader on
pressure switch
*
Do not disassemble check valve with air in tank; bleed the tank.
SOLUTION
1� Plugged in? Check fuse/breaker or motor overload
2� Replace blown fuse
3� Reset, determine cause of problem
4� Reset Thermal overload
5� Replace
6� Remove and replace check valve *
1� Check connections, check with voltmeter
2� Replace motor
3� Replace or repair *
1� Check for proper fuse, use time-delay fuse� Disconnect other
electrical appliances from circuit or operate compressor on its
own branch circuit
2� Replace or repair *
1� Check with voltmete
2� Clean filter (See Maintenance section)
3� Move compressor to well ventilated area
4� Replace *
1� Replace
2� Replace or repair as necessary
3� Replace
4� Replace or repair as necessary
5� Tighten bolts, shim tank to level position
1� Check all connections with soap and water solution and
tighten
2� Tighten
3� Disassemble check valve assembly, clean or replace *
1� Clean or replace
2� Replace leaking components or tighten as necessary
3� Have authorized service representative repair unit
4� Replace
5� Replace
1� Drain tank
2� Move to area of less humidity; use air line filter
1� Replace switch
2� Decrease air usage; compressor not large enough for air
requirement
1� Drain more often
2� Replace leaking components or tighten as necessary
3� Replace or repair as necessary *
Remove and replace check valve *
CT1001
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