Ignition Lockout - Bosch Worcester 28CDi User Instructions

The appliance can be reset by pressing the reset button and
holding in for 5 seconds.

IGNITION LOCKOUT

The appliance will enter a lockout condition in the event of the
burner failing to ignite.
If the burner fails to light within a preset time of 10 seconds the
electricity supply to the gas valve will be interrupted.
If ignition lockout has occurred, the central heating demand
indicator will flash slowly (approximately once per second).
The appliance can be reset by pressing the reset button and
holding in for 5 seconds. Check that the gas supply has not been
interrupted.
If this condition continues to occur, then call a service engineer.
AIR FLOW DEVICE (RSF ONLY)
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 domestic water demand
indicator will flash (approximately five times per second).
The appliance will try to re-light after a waiting period of
approximately 4 minutes Check that the flue terminal has not been
obstructed or damaged. If this condition continues to occur, then call
a service engineer.
FLUE SPILLAGE DEVICE (OF ONLY)
The appliance is fitted with a device which detects the spillage
of combustion products from the draught diverter. In the event of the
flue becoming wholly or partly blocked this device will cut the gas
supply to the burner. If the device has activated, the D.H.W. demand
indicator will flash (approximately 5 times per second).
The device automatically resets after a waiting period of approxi-
mately 20 minutes. If the blockage remains the appliance will re-light
briefly before the device operates again. Should the problem persist
consult your service engineer.
REMOVAL AND REPLACEMENT
OF THE FRONT PANEL
Removal:
Holding the panel at the edges, slide it upwards to disengage the
clips and ease the top edge forwards and upwards to raise it clear of
the two pegs on the top edge of the facia.
Replacement:
Locate the two holes in the bottom edge of the front panel over
the two pegs on the top edge of the facia and reverse the removal
procedure.
WARNING: Do not touch any component within the appliance
when it is running as some may be very hot.
(See Fig. 3)
11