Glow-Worm S900001 Thermocouple | Genuine Replacement Spare Part

Glow-Worm S900001 Thermocouple | Genuine Replacement Spare Part

Genuine Glow-Worm S900001 thermocouple for compatible Glow-Worm boiler models. Generates a small electrical voltage when heated by the pilot flame, keeping the gas valve open. If the pilot goes out, the voltage drops and the valve closes safely. Gas Safe registered engineer required.The price shown includes FREE DELIVERY.
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