Co-a1 — Communication loss with compressor A1 board

Was bedeutet Co-a1 ?

Communication has been lost with the control board for compressor A1. This could be due to a bus fault or a defective slave board. The compressor is shut down.

• Installation bus fault.
• Defective slave board for compressor A1.
• Loose wiring connection to the slave board.
• Interference on the communication bus.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Check all wiring connections to the compressor A1 slave board.

2. 2

   Inspect the communication bus for damage or interference.

3. 3

   Attempt to reset the communication by cycling power to the unit.

4. 4

   If the issue persists, the slave board may need replacement.