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4B - Electric heater overheating

Alarm conditions:

Unit with electric heater has emergency protection from everheating at 100 *C, which can be activated in case of the heater failure. Unit operation is terminated

Possible causes:

  1. Activated overheating protection relay
  2. Overheating protection relay failure
  3. Damaged wiring
  4. Controller failure

Troubleshooting:

 

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