Empire Comfort Systems DVLXG55BP90N Installer's Manual page 53

MULTIFUNCTION REMOTE OPERATING INSTRUCTIONS
Lockout State Definition
A lockout state is reached when an ignition error occurs. The
lockout state will remain set in memory as long as the power
supplies are applied.
This could mean both an anomalous flame detection and/or too
many unsuccessful ignition tries.
This state is a safe condition for the fireplace and is entered
automatically by the IFC board.
When the IFC board gets into lockout state:
1. Both the pilot and the main burner solenoids in the gas valve are
de-energized;
2. A diagnostic code is sent through the diagnostic red LED; and
3. The IFC board will ignore any burner ignition command and
remain in the OFF state unless the unlock command sequence
is met.
The causes of lockout must be investigated under safe conditions
by the user and/or the service personnel.
To reset the IFC from a lockout state, perform the following
procedure:
Turning the system power supplies (to the wall control or remote
control) OFF for two or three seconds and then restoring a power
supply back on. The return of the system to normal operation
must be checked under safe conditions by the user and/or service
personnel.
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