Stovax 8518-P8518 manual Servicing Instructions, Replacing Parts, Gas Valve, Magnetic Safety Valve

SERVICING INSTRUCTIONS

REPLACING PARTS

6.GAS VALVE

6.1Turn the gas supply off at the isolation device.

6.2Disconnect the 2x8mm and 1x4mm gas pipe fittings at the back of the gas valve and also disconnect the thermocouple, see diagram 9.

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6.3Undo the single screw that secures the left-hand side of the control cover, see diagram 10.

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6.4To release the right-hand side of the control cover, insert the narrow blade screwdriver into the slot shown in diagram 11. Lever it gently and pull from the right-hand side at the same time. The cover will now come off. There is a small cylindrical metal spacer inside the cover. This must be kept and replaced on the fixing screw during re-assembly.

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6.5Disconnect the ignition lead from the gas valve.

6.6Undo the two bolts securing the gas valve to the appliance and remove the valve.

6.7Replace in reverse order.

6.8Check all joints for gas leaks. Check operation of the thermocouple and ignition lead.

7.MAGNETIC SAFETY VALVE

7.1Turn the gas supply off at the isolation device. Undo the thermocouple connection from the back of the gas valve. Pull the sensor leads clear and remove the interrupter block.

7.2Undo the magnetic valve-retaining nut from the back of the control valve. Gently tap out the magnetic valve and replace with a new unit. Replace the retaining nut and tighten. See diagram 12.

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7.3Reassemble the interrupter block and leads. Secure the thermocouple connection in the rear of the gas control. (Do not overtighten). Turn the gas supply on and check the entire pipework and valve joints for any leaks.

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