TROUBLESHOOTING
Automatic Shutdown
The compressor will not start or will shut down automatically if any of the following are open:
• the compressor shell high-temperature switch;
• the oil or gas high-temperature switch;
• the motor internal protector;
• the circuit breaker.
If the compressor has been shut down by one of these interlocks, do not restart until the
problem has been found and corrected. Refer to the Troubleshooting Guide to identify the
problem.
If the unit shuts down again, refer to the Troubleshooting section to determine the cause and
corrective action.
When the shutdown is caused by one of the high-temperature switches or the internal motor
protector, the compressor will restart only after it has cooled enough for the switch to close.
After waiting for the compressor to cool, press the power switch to restart. Should the
compressor fail to start, turn it off and allow more cooling time. Repeat the start procedure.
If the circuit breaker opens, reset the breaker by pushing its lever to the up position.
If a fuse is open, disconnect the power from the compressor, replace the fuse, then restart
the compressor.
Refer to the Troubleshooting Guide and the following procedures for checking the compressor’s
electrical components.
The Troubleshooting Guide that follows lists problems that can occur in the compressor and
suggests causes and corrective actions.
AVOID ELECTRIC SHOCK. Disconnect the power to the compressor before
troubleshooting the electrical components.
AVOID ELECTRIC SHOCK. Permit only qualified electrical technicians to open
electrical enclosures, to perform electrical checks or to perform tests with the
power supply connected and wiring exposed. Failure to observe this warning
can result in serious injury or death.
PRESERVE YOUR WARRANTY. Modification to equipment without the
consent of the manufacturer will void the warranty.
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