Panel Communication Check
The panel communication check verifies the inputs and outputs from the control panel to the A/CCM.
| Step | Result |
|---|---|
| #1 Simultaneously hold FACE and FAN - Switch ignition to ON | Panel communication with FACE, Bi-level, FOOT, DEMIST, DEFROST and RECIRC lines checked - State lamps will illuminate if all is OK. Unlit state lamp indicates a continuity fault for that specific link |
| #2 Press ON | Exit check mode |
| Item | Check LED | Condition |
|---|---|---|
| Ignition | Defrost | IGN input at 12V, check LED is illuminated |
| Auxiliary | Face | AUX input at 12V, check LED is illuminated |
| Clock | Feet / face | Clock input normal, check LED is illuminated |
| Start input | Foot | Start input normal, check LED is illuminated |
| Data out | Screen / foot | Data out input normal, check LED is illuminated |
| Dimmer override | Recirc. | Dimmer override input ON, check LED is illuminated |