20
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)
