Home > Alarms > C4/C4.1 > 28B - Plate heat exchanger frost possibility

28B - Plate heat exchanger frost possibility

Alarm conditions:

In the unit with plate heat exchanger, if the freezing protection of the heat exchanger is activated and is not restored, the unit will stop operating

Possible causes:

  1. Frost protection relay failure
  2. Damaged wiring
  3. Controller failure
  4. Wrong settings

Troubleshooting:

 

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