PRO-PULSE ACP120-A Manuel De L'utilisateur page 22

TROUBLESHOOTING
SYMPTOM
Compressor runs continuously
Compressor starts and stops
excessively when not in use
Compressor will not start
Circuit breaker trips (or fuse
blows) too often
Low pressure
Safety pressure relief valve opens
Oil discharge in air
Compressor overheats
22
ACP120-A
POSSIBLE CAUSE
Petcock is open
Prolonged or excessive use of air
Compressor is not powerful enough
for job
Restricted check valve
Leak in air hose or connector
Tank leaks
Blown seals
Petcock is partially open
Fittings leak
Fuse or circuit breaker tripped
Loose electrical connections
Extension cord not correct
Low voltage
Overheated motor
Check valve is stuck open
Pressure bleeder valve on pressure
switch has not unloaded head
pressure
Paint spray on internal motor parts
Low voltage
Excessive wire length
Restricted air passages
Back pressure in pump head
Air leak in safety relief valve
Restricted air filter
Defective check valve
Defective pressure switch or
improper adjustment
Improper oil viscosity
Too much oil in crankcase
Air pressure regulated too high
Restricted air filter
Poor ventilation
Dirty cooling surface
SOLUTION
Close petcock
Decrease air demand
Check the air requirement of air tool.
Remove and clean, or replace
Check and replace if necessary
Replace tank immediately! Do not attempt
to repair!
Replace
Close petcock
Check fittings with soapy water. Tighten or
re-seal fittings. Do not over-tighten
Check for cause & replace or reset
Check wiring connections
Max. 50 ft (15 m) min. 14 ga
Consult electrician
Use reset button or wait for auto reset
Remove and clean or replace
Move switch to Off and then restart
Consult service centre
Consult electrician
Try to run compressor without extension cord
Contact service centre
Replace check valve
Replace pressure switch bleeder valve
Check valve manually: pull ring outward
Clean or replace air filter
Replace check valve
Check for proper adjustment and if problem
persists, replace pressure switch
Replace with SAE-20 non-detergent
compressor oil
Drain crankcase and fill to correct level
Reduce regulator setting
Clean and replace air filter
Relocate compressor
Clean pump cooling vanes