Error Code 42 — High pressure switch open

Was bedeutet 42 ?

The high pressure switch in the system has opened, indicating that the system pressure is too high. This protects the compressor from excessive pressure.

• Excessive refrigerant charge
• Dirty outdoor coil
• Restriction in the refrigeration circuit
• System operating at high pressure

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Check the continuity of the high pressure switch.

2. 2

   Inspect the outdoor coil for dirt and clean if necessary.

3. 3

   Check for restrictions in the refrigeration circuit.

4. 4

   If refrigerant pressures are correct but the switch is faulty, replace the switch.