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Servicing the Fire
CAUTION:
ISOLATE THE ELECTRICAL SUPPLY. TURN
OFF THE GAS SUPPLY, ENSURE THAT THE FIRE IS
COLD, TEST FOR GAS SOUNDNESS UPON RE-
ASSEMBLY.
Instructions 1-10 are for servicing to be carried out
annually and should be followed in conjunction with the
separate instructions for the boiler section.
1.
Remove the controls cover panel under the front of the
fire by grasping it firmly by its edges and pulling forwards.
2.
Remove the outercase as follows:
(i)
Pull off the control tap knob. (PW5 Deluxe only)
(ii) Remove the 2 outercase securing screws (Fig.5).
(iii) Remove the case by easing the lower edge
forward and then lifting upward.
3.
Turn off the gas service tap by turning fully clockwise
(Fig.4).
4.
Disconnect the fire supply pipe from the fire inlet and
remove the 2 screws securing the backing plate to the
inner case. Pull the fire forward until the fire spigot is clear
of the boiler canopy and lift away.
5.
Remove the radiants by carefully lifting away from the
burner, disconnect the electrode lead from the tap and
pull through the grommet on the fire leg.
6.
Pull the lint arrester from the burner and remove all
traces of dust or lint.
7.
Remove the burner and injectors as follows:
C5 & C5W
Undo the screws holding the A.S.D. assembly to the
burner.
Slacken the thermocouple nut and undo the pilot feed
pipe nut from the tap.
Release the thermocouple and pilot feed pipe from the
clip below the burner.
Ease the pilot / A.S.D. assembly away from the burner
rail.
Slacken the right hand screw holding the tap bracket to
the fire, and remove the retaining screw from the left hand
end of the burner.
Remove the burner from the fire.
Undo the injectors from the burner and clean carefully.
Do
NOT use a pin or wire.
Using a soft brush remove any dirt or deposits from the
burner and ensure that the ports are free from obstruction.
Clean any debris from the A.S.D. assembly.
Do NOT use
a pin or wire.
PW5 Deluxe
Undo the screws holding the A.S.D. assembly to the
burner.
Slacken the thermocouple nut and undo the pilot feed
pipe nut from the tap.
Release the thermocouple and pilot feed pipe from the
clip below the burner.
Ease the pilot / A.S.D. assembly away from the burner
rail.
Undo the compression nuts from the injectors and the left
hand screw holding the burner to the fire.
Slacken the right hand screw.
Remove the burner from the fire.
Undo the injectors from the burner and clean carefully.
Do
NOT use a pin or wire.
Using a soft brush remove any dirt or deposits from the
burner and ensure that the ports are free from obstruction.
Clean any debris from the A.S.D. assembly.
Do NOT use
a pin or wire.
8.
Check that the spark gap is as in Fig.10.
9.
Replace the parts in reverse order of dismantling.
Make sure that the glass fibre sleeve is correctly fitted
over the ceramic insulation on the electrode.
10.
Recommision the boiler and fire before use, and refit
the outercase.
Changing Components
CAUTION:
ISOLATE THE ELECTRICAL SUPPLY, TURN
OFF THE GAS SUPPLY, ENSURE THAT THE FIRE IS
COLD, AFTER REPLACING ANY COMPONENTS
ALWAYS TEST FOR GAS SOUNDNESS.
The following components can be removed as described
below:
Replace all components in the reverse order of
dismantling. If necessary re-light the boiler pilot.
Remove the outercase and turn off the gas service tap
as described in 1 - 3 of 'Servicing the Fire'.
GAS TAP & INJECTORS
(C5 & C5W)
Remove the “R” clip retaining the spindle extension to the
tap, and withdraw the extension.
Remove the electrode lead from the igniter.
Undo the thermocouple nut from the bottom of the tap.
Undo the tap feed pipe nut and pilot feed pipe nut.
Undo the locknut holding the tap to its mounting bracket.
Withdraw the tap from its bracket.
Undo the injectors from the tap and replace.
BURNER
(C5 & C5W)
Remove the lint arrester (Fig. 9).
Remove the radiants.
Undo the screws holding the A.S.D. assembly to the
burner.
Undo the left hand screw securing the burner, slacken the
right hand screw and slide the burner to the left to
disengage it, and remove.
BURNER & INJECTORS
(PW5 Deluxe)
Remove the lint arrester (Fig. 9).
Remove the radiants.
Undo the screws holding the A.S.D. assembly to the
burner.
Undo the compression nuts on the injectors.
Undo the left hand screw securing the burner, slacken the
right hand screw and slide the burner out.
The injectors can now be removed.
GAS TAP & PILOT FILTER
(PW5 Deluxe)
Undo the thermocouple nut from the tap.
Undo the four compression nuts.
Remove the electrode lead from the igniter.
Undo the lock nut holding the tap to its bracket, and
remove the tap.
Remove the pilot filter from the pilot tapping and replace.
ELECTRODE LEAD
(All Models)
Pull the lead/sleeve off the electrode and igniter.
Withdraw it through the grommets and clip on the
appliance chassis.
When fitting the replacement, ensure that the female
spade terminal is connected to the igniter.
Care must be exercised when connecting the other end to
the spiked terminal of the electrode.
