18
Problem Possible Cause Solution
The thermal overload protector
cuts out repeatedly.
□ There is low voltage from
the power source.
□ Call an electrician.
□ There is a lack of proper
ventilation, or the room
temperature is too high.
□ Move the compressor to a well-ventilated
area.
□ The wrong gauge wire or
length of extension cord is
being used.
□ Check for proper gauge wire and cord
length.
The air receiver pressure
drops when the compressor
shuts off.
□ The connections (fittings,
tubing, etc.) are loose and
leaking.
□ Check all connections with a soap and
water solution and tighten.
□ The drain valve is loose
or open.
□ Tighten the drain valve.
□ The check valve is leaking. □ Bring the compressor to a service center.
There is excessive moisture
in the discharge air.
□ There is excessive water in
the air tank.
□ Drain the tank.
□ The compressor is working
under a high humidity
environment.
□ Move the compressor to an area of less
humidity; use an air line filter.
The compressor
continuously runs.
□ The pressure switch is
defective.
□ Bring the compressor to a service center.
□ An excessive amount of air
is being used.
□ Decrease the air usage; the compressor
is not large enough for the tool’s
requirement.
The air output is lower than
normal.
□ The inlet valves are broken. □ Bring the compressor to a service center.
□ The connections (fittings,
tubing, etc.) are loose and
leaking.
□ Tighten the connections.
Troubleshooting (continued)