Harsco Industrial 1004905923 Installation & Owner's Manual page 39

5.6.10 Flame Error
LATE FLAME
EARLY FLAME
FALSE FLAME
These errors signify flame error. This may be caused by a failed or leaky gas valve or a flame detector malfunc-
tion. If gas valve leakage is suspected, the unit must be isolated by turning off the main gas supply line. Qualified
and knowledgeable service personnel must be called to evaluate and repair/replace the failed parts.
A comprehensive listing of the locking and blocking error codes is provided below.
NOTICE! When an Internal Software Error occurs, the failure is internal to the ENVI
placement of the ENVI
®
control is required. A qualified service technician must replace the ENVI
®
MODU-FIRE Forced Draft Gas-Fired Boiler 2500-3000
39
®
boiler control and re-
®
control.