Error code F1 wardrobe unit Sendo On-Off, 55,000 Btu/h.

Error code F1 wardrobe unit Sendo On-Off, 55,000 Btu/h.

It appears in the following cases:

  • Phase ellipse protection
  • Phase sequence protection (most common cause)
  • Low pressure pressostat

For the above reasons, the following solutions are proposed:

  1. Check that the power supply characteristics meet the requirements of the unit.
  2. Replace 2 of the 3 phases of the external unit (most common resolution method).
  3. Check the pressure of the refrigerant (the pressure of the system when the unit shuts down is about 1.0MPa).
  4. If you do not notice a problem with the above, check the pressostat.


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