This genuine Baxi thermistor sensor is designed for Main HE, Combi, Performa and System IE Boilers. The thermistor decreases 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.
Please always refer to the manufacturer's instructions for the correct application. All parts should be fitted by a qualified gas-safe certificate plumber.
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This part supersedes: 247394, 248068, 248655
Suitable for the following appliances:
• Combi Instant 105/80 HE
• 24/28 HE Megaflo System IE LPG
• 18/24/28 HE
• Performa 24i HE
• Performa System 12/18/24/28HE