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Servicing instructions, Replacing parts, Ignition lead and piezo – Stovax Huntingdon 30 User Manual

Page 18: Gas valve 5. piezo

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18

The pilot unit can now be removed by undoing the two

screws, Diagram 6

3.2

• Reassemble in reverse order
• Do not overtighten.
NOTE: TAKE CARE NOT TO DISCONNECTTHE SENSOR

WIRES OF THE GAZCO FLUE SURE SYSTEM ON

REPLACING THE THERMOCOUPLE

4.1

• Follow the above Pilot Unit instruction to access the back

of the pilot assembly
• Disconnect the ignition lead from the electrode
• Remove the front cover from the control valve, Diagram

7 and 8
• Disconnect the other end of the ignition lead from the

valve body noting the route of the ignition lead

8

AR0916

7

AR0915

4. IGNITION LEAD AND PIEZO

AR1445

6

• Replace with a new ignition lead following the same

route as the old one

Replace the valve cover and the pilot assembly

4.2

• Check operation of the new ignition lead.

5.1

The piezo assembly used on this appliance is not

serviceable and is unlikely to fail.

6.1

• Turn the gas supply off at the isolation device, referring

to Diagram 9
• Disconnect the 2 x 8mm and 1 x 4mm gas pipe fittings

at the back of the gas valve (A)
• Disconnect the thermocouple, (B)

• Remove the front cover from the control valve, Diagram

10 and 11

.

10

AR0915

9

AR0943

C

C

B

A

A

A

6. GAS VALVE

5. PIEZO

SERVICING INSTRUCTIONS

REPLACING PARTS