Troubleshooting - Hyundai HHC series User Manual

Section 7 - Troubleshooting
Many troubleshooting procedures present hazards which
can result in severe personal injury or death. Only trained
and experienced service personnel with knowledge of fuels,
electricity, and machinery hazards should perform service
procedures. Review Safety Precautions.
A hot compressor can cause severe burns. Always allow the
compressor set to cool before performing any maintenance
service.
PROBLEM
Compressor
does not
start.
Compressor
does not
supply
enough
pressure to
operate.
Excessive
tank
pressure;
Safety
relief valve
releasing.
Moisture in
discharged
compressed
air.
30
CAUSE
•
Blown fuse or circuit
breaker tripped.
•
Loose electrical
connections.
•
Overheated motor.
•
Air leak in safety valve.
•
Restricted air filter.
•
Defective check valve.
•
Defective pressure
switch or improper
adjustment.
•
Condensation in air tank
caused by humidity.
•
Compressor located in
damp or humid area.
CORRECTION
•
Check for cause and
replace or reset.
•
Check wiring
connections.
•
Use reset button.
•
Wait for automatic reset.
•
Check valve manually:
pull upward on rings.
If condition persists,
replace valve.
•
Clean or replace air filter.
•
Replace check valve.
•
Check for proper
adjustment and if
problem persists,
replace pressure switch.
•
Drain tank.
•
Relocate the
compressor.
•
Purchase In-Line air filter
system.