Camus Hydronics DynaMax DMH201 Installation And Service Manual page 54

Alert 291: Abnormal Recycle: Flame was not on at end of ignition
Alert 294: Abnormal Recycle: Flame was lost during Run
Alert 324: Abnormal Recycle: Hardware flame bias
Alert 377: Abnormal Recycle: Hardware flame bias delta
This type of failure indicates a flame rectification signal issue through the flame rod.
Is Flame sensor plug secure?
YES
Check continuity of flame
sensor wire from flame sensor
to ignition control, J1-2
YES
Remove flame sensor and clean
if necessary
Fasten flame sensor plug securely to
NO
flame sensor wire and check for
corrosion deposits at wire terminals
Replace sensor wire since corrosion
NO
can affect the perceived flame signal
significantly and position it away from
the heat exchanger
NO
Bend flame sensor
closer to burner
NO
Replace flame sensor and
graphite flame sensor gasket
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