11
IGNITION LOCKOUT
The appliance will enter a lockout condition in the event of the
burner failing to ignite. If the burner fails to light after 5 attempts the
electricity supply to the gas valve will be interrupted.
If ignition lockout has occurred, the fault indicator will flash
slowly (approximately once per second).
The appliance can be reset by ending the present demand which
in a central heating demand means turning the central heating
temperature control to ‘’and back to the required setting or ending
the room thermostat/programmer demand. In the domestic hot water
mode, turn the tap OFF and ON.
Re-ignition will be attempted after a delay of four minutes.
Domestic hot water demands do not have this delay.
Check that the gas supply has not been interrupted.
If this condition continues to occur, then call a service engineer.
AIR FLOW DEVICE
The appliance will enter a lockout condition in the event of an
air flow fault.
If the controls fail to detect the correct air flow through the
appliance the electricity supply to the gas valve will be interrupted.
If an air flow fault has occurred, the fault indicator will flash
(approximately five times per second).
The appliance will try to re-light after a waiting period of
approximately 5 minutes Check that the flue terminal has not been
obstructed or damaged.
If this condition continues to occur, then call a service engineer.
