User guide

ManualsBrandsGlow-worm ManualsWater boilerBetacom C

12 Servicing

14566

1455714574

14556

Diagram 12.6

Diagram 12.7

Diagram 12.8

Diagram 12.9

12.2 Fan removal

Disconnect the electrical connections and air pressure switch

connection tubes from the fan, remove the fan securing

screw and withdraw fan from fan hood with its 56º bend, see

diagram 12.5.

12.3 Burner removal

Remove the burner assembly from the combustion chamber

as follows:

Pull off the ignition and ame electrode leads from mains

circuit board and remove the wires with grommet from the

combustion chamber base, see diagrams 12.6 and 12.7.

Remove the burner-retaining screws at the sides and remove

the burner, see diagram 12.8.

12.4 Visually check

For debris/damage and clean/replace as necessary the

following items:

Heat exchanger, Burner, Fan/compartment

Electrodes and Insulation/gaskets

IMPORTANT: Clean the heat exchanger using a soft brush or

vacuum cleaner. Do not use any tool likely to damage painted

nish of heat exchanger.

Clean the burner by washing in soapy water. Allow to dry

thoroughly before re-tting.

Do not use wire or a sharp instrument to clean the burner

injectors.

Ensure the ignition electrode gap is set to 4 mm, see diagram

12.7.

12.5 Cold water inlet lter

The boiler is tted with a cold water inlet lter which must be

inspected on each service, see diagram 12.9.

To access the lter:

Close the isolating valve on the boiler’s cold water domestic

inlet by turning the valve head fully clockwise.

Open one or more hot water taps to drain the domestic hot

water circuit.

Disconnect the cold water inlet connection to the boiler.

Clean and inspect the lter, replace if necessary as described

in replacement of parts section 14.19.

Re-t the lter and reinstate the cold water inlet connection to

the boiler, t new gasket as required.

Fully open the isolating valve on boiler’s cold water inlet and

check for leaks.

SECURING SCREW

LEFT HAND SIDE

OF BURNER

RIGHT HAND

SIDE OF BURNER

SENSING TUBE

GROMMET

BURNER

COLD WATER INLET FILTER

COLD WATER INLET

ISOLATION VALVE

IGNITION AND FLAME

ELECTRODE LEADS

SPARK GAP 4mm