A0 - External protection active

Was bedeutet A0 ?

An external protection device has been activated, which is preventing the air conditioner from operating.

• External protection wired to T1-T2 is active.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Check wiring to the T1-T2 terminals for any active external protection.

2. 2

   Ensure any external protection devices are correctly reset or disarmed.

3. 3

   Consult an HVAC professional if the issue persists.