This Glow-worm NTC sensor is compatible with Ultrapower, CXI, Ultracom, Flexicom and Eden boilers. The sensor is employed to decrease circuit resistance in line with temperature increases. A boiler's printed control board (PCB) sends a current to the thermistor, deciding whether a decrease or increase in heat is required by reading the relative resistance. Glowworm spares are manufacturer quality spare parts that can save you valuable time and money extending the life of your boiler.
Please always refer to the manufacturer's instructions for the correct application. All parts should be fitted by a qualified plumber.
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Suitable for following appliances:
• SXI 100
• SXI 170