A169 - Expansion Valve Control Board Comm Failure

Was bedeutet A169 ?

Communication has failed with the Expansion Valve Control Board. The Humidi-MiZer control is disabled.

• Incorrect wiring
• Loss of power to the control board
• Faulty control board

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Ensure the Humidi-MiZer control board has power.

2. 2

   Inspect all wiring connections to the control board.

3. 3

   A technician needs to diagnose the communication issue and test the board.