Technical Notice CSO/CPO V1.1 / 10.14 Page 81 / 86
Troubleshooting 10
The motor doesn't run
- Check the rotation direction
- Circuit breaker tripped out
✔ Check the liquid level.
✔ Reset the circuit breaker.
- Bearings defective
✔ Replace the bearings.
- Insufficient fluid
✔ Add fluid.
- Fluid quality nonconforming
✔ Change the fluid.
- Motor out of order
✔ Replace the motor.
The motor runs, but without pressure increasing in the concerned circuit
- Pump defective (option)
✔ Replace the pump
F. Check that the compressor is running.
The compressor is powered but doesn't work
- The internal compressor safety switch has been activated
✔ Cut off the power supply
Let the unit cool off (may take several hours)
Restart the unit
✔ Check that the exhaust fan is working properly
Clean the condenser
LP contact is open, intake pressure too low for the compressor
- Gas leakage
✔ Call a refrigeration engineer to repair the leak and refill the circuit with gas
- Insufficient oil flow rate
✔ Check the oil feeding of the device
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