This 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.
Baxi part number: 5108265
Compatible with: 28 HE Megaflo System IE LPG, Performa System 24HE, 18 HE, Combi Instant 80E, 24 HE, Performa System 28HE, Performa 24i HE, 28 HE, Performa System 18HE, 24 HE Megaflo System IE LPG, Performa System 12HE, Combi Instant 80 HE and Combi Instant 105 HE.
