A004 - PoF Switch error H

Was bedeutet A004 ?

The proof of air flow (PoF) switch was detected open during heating operation. Check the blower and its wiring.

• PoF switch wiring issue
• Blower malfunction
• Venting obstruction or issue

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Check the switch wiring.

2. 2

   Inspect the blower for proper operation.

3. 3

   Check venting for obstructions.

4. 4

   If the problem persists, contact technical support or a service provider.