Troubleshooting Chart - Campbell Hausfeld Dental Air Serie Instrucciones De Operación

Operating Instructions
WTS Models

Troubleshooting Chart

Symptom
Compressor will not run
Motor hums but cannot
run or runs slowly
Fuses blow/circuit
breaker trips repeatedly
Thermal overload pro-
tector cuts out repeat-
edly
Possible Cause(s)
1. Loss of power or overheating
2. No electrical power
3. Blown fuse
4. Breaker open
5. Thermal overload open
6. Pressure switch bad
1. Low voltage
2. Wrong gauge wire or length of
extension cord
3. Shorted or open motor winding
4. Defective check valve or unloader
1. Incorrect size fuse, circuit overloaded
2. Wrong gauge wire or length of
extension cord
3. Defective check valve or under loader
1. Low voltage
2. Clogged air filter
3. Lack of proper ventilation/room tem-
perature too high
4. Wrong gauge wire or length of
extension cord
Corrective Action
1. Check for proper use of extension cord (see EXTEN-
SION CORDS, page 3)
2. Plugged in? Check fuse/breaker or motor overload
3. Replace blown fuse
4. Reset, determining why problem happened
5. Motor will restart when cool
6. Replace
1. Check with voltmeter
2. Check gauge chart, under Operation for proper
gauge wire and cord length
3. Replace motor
4. 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. Check gauge chart, under Operation
3. Replace or repair
1. Check with voltmeter
2. Clean filter (see Maintenance section)
3. Move compressor to well ventilated area
4. Check gauge chart, under Operation
5