35
Incorrect Operation Of Device
This code typically points to
- Device operating in a way that does not match expected command/state
Next checks to confirm
- Run thermostat diagnostic mode
- S30: Dealer Control Center > Diagnostics > Start
- S40: View Service Support Center > Diagnostics > Select All > Start
- Check other active alerts
- Recycle power
Escalation
Service urgent
Reset behavior
Automatically clears when issue no longer exists.
Urgent
Fix now