0850/0850-T1 User Manual
Matrix Machine Tool (Coventry) Limited 209 / 231
23 Troubleshooting Guide
23.1 Oil Cooler Unit fault codes
Possible reasons for failure of the cooler unit:
1. Wrongly positioned
2. Poor working environment
3. Collision
4. Wrong type of oil
5. Improper connection
6. Not enough oil in the tank when operating
7. No regular maintenance
8. Frequent restart of the cooler
9. Failure and Solution
Oil temperature sensor fault
Broken connection of the oil temperature sensor.
Oil temperature sensor fault.
Temperature controller failure.
Check if the connection of the oil temperature sensor is broken.
If the connection is not broken then there is the possibility that the
temperature controller or sensor has failed.
Reconnect or replace the wiring.
Replace failed components.
There is a problem with the ambient or machine body
temperature sensor.
The wire connection of the ambient or machine body temperature sensor is
broken.
The ambient or machine body temperature sensor has failed.
The temperature controller has failed.
Check if the wire for the ambient or machine body temperature sensor is still
connected.
If still connected then the sensor or temperature controller is faulty.
Reconnect the wiring or replace the wire.
Replace faulty components.
Oil temperature is too high for the cooler to process.
Process load is over the limit of the cooler unit’s capacity.
Oil temperature sensor failure.
Refrigeration system failure.
Check if the ambient & oil temperatures are over the limit of 45°C.
Check if the cooler unit is capable for the process load.
Check if the refrigeration system is in order.
Check if the sensors are functioning correctly.
Keep the oil temperature below 45°C.
Change cooler unit to a larger cooling capacity .
Replace the oil temperature sensor.
Contact the refrigeration technician for refrigeration system failures.
There is a pressure fault within the refrigeration system.
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