Continuous AMBER flash
Low flame sense current
This code typically points to
- Dirty flame rod
- Weak flame carryover
- Poor grounding
- Flame sensor wiring fault
Next checks to confirm
- Clean flame rod and measure flame current (normal ~3.7 µA)
- Verify burner carryover and flame pattern
- Verify board/chassis grounding
- TG9S family: warning at 1.5 µA, lockout at 0.1 µA
- TM8Y family: warning at 0.28 µA, lockout at 0.16 µA
Escalation
Repeated low flame after cleaning and grounding points to combustion quality or board sensitivity.
Reset behavior
Status indicator during operation; does not itself lockout until flame drops below lockout threshold.
Service Soon
Schedule repair