Worcester GB162-100

MAINTENANCE
6 720 648 726 (2011/07)
64
13 MAINTENANCE
B Prepare the system for maintenance as described in
the chapter on Inspection (Æ section 12.1, page 61).
13.1 REMOVING THE BOILER DOOR
If the boiler door cannot be fully opened, it may be
necessary to remove the door for inspection and
maintenance activities.
Proceed as follows:
B Unscrew the control panel from the boiler door and
hang it on the boiler frame (Æ fig. 120 "Undoing the
screws", page 70).
B Unscrew the bolt from the left-hand top hinge of the
boiler door and remove it together with the washer.
B Slightly lift the door and pull it from the hinge. Put the
door upright in a safe position and make sure that it
cannot fall over.
Fig. 104 Removing the boiler door
13.2 CLEANING THE HEAT EXCHANGER,
BURNER AND CONDENSATE TRAP
The boiler has a self-cleaning coating.
13.2.1 REMOVING THE GAS VALVE
B Undo the gas fitting screw connection [1] and pull the
4 connectors [2] from the gas valve.
Fig. 105 Undoing the connections to the gas fitting
The cover over the electrical connections
does not have to be removed from the
boiler.
6 720 648 726-104.1TD
WARNING: Damage to the installation due
to short circuits.
B Do not spray the detergent onto the
burner, the glow ignitor, the ionisation
electrode or other electrical components.
GB162-65
GB162-80/100
6 720 648 726-105.1TD