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6. Piezo
6.1 The piezo assembly used on this appliance is not
serviceable and is not likely to fail.
6.2 If a new piezo is required it will be necessary to change the
valve, see Section 7.
7. Gas Valve
7.1 Turn the gas supply off at the isolation device.
7.2 Disconnect the 2 x 8mm and 1 x 4mm gas pipe fittings
at the back of the gas valve and also disconnect the
thermocouple, see Diagram 14, Arrow A.
7.3 Remove the control valve cover and disconnect the ignition
lead from the gas valve, see Section 5.
7.4 Undo the two bolts securing the gas valve to the appliance
and remove the valve, see Diagram 14, Arrow C.
7.5 Replace in reverse order.
7.6 Check all joints for gas leaks.
7.7 Check operation of thermocouple and ignition lead.
B
C
A
C
14
8. Magnetic Safety Valve
8.1 Turn the gas supply off at the isolation device. Undo the
thermocouple connection from the back of the gas valve.
8.2 Undo the mag valve retaining nut at the back of the control
valve, gently tap out the mag valve and replace with a new
unit. Replace the retaining nut and tighten, see Diagram 14,
Arrow A.
8.3 Secure the thermocouple in the rear of the gas control. (Do
not over tighten). Turn the gas supply on and check the
entire pipe work and valve joints for any leaks.
Servicing Instructions - Replacing Parts
9. Main Injector
9.1 Turn the gas supply off at the isolation device.
9.2 Remove the main burner, see Section 3.
9.3 Undo the compression nut from the feed pipe at the gas
control under the appliance.
9.4 Working from inside the firebox, remove the lock nut from
the injector, see Diagram 15 and withdraw the injector
complete with the feed pipe from under the appliance.
15
9.5 Holding the injector with a spanner, undo the feed pipe.
NOTE: THE ORIENTATION OF THE INJECTOR.
9.6 Reassemble in reverse order,
9.7 Turn on the gas supply and check for any leaks.
10. Primary Aeration Plate
10.1 Turn the gas supply off at the isolation device.
10.2 Remove the main burner, see Section 3.
10.3 Remove the 2 screws on the burner skin to detach the
venturi cover from the venturi. Slide the venturi cover off the
venturi, see Diagram 16.
16
10.4 Refer to the technical specification and databadge to check
the gas type and its required aeration plate. Change the
aeration plate, if necessary.
10.5 Reassemble in reverse order with correct aeration plate(s).
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