Red LED on by itself (fuse good)
Entire control should be replaced
This code typically points to
- Internal board failure
Next checks to confirm
- Verify fuse is good
- Verify proper power and ground
- Replace board if confirmed
Escalation
Already a board-level escalation once supply and fuse are ruled out. Control is not field-repairable.
Reset behavior
Not a normal auto-reset fault.
Urgent
Fix now