This Ideal thermistor kit is designed for compatibility with Esprit, Isar, Esprit 2, and Evo 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. Providing central heating you can rely on for over 100 years, Ideal Heating has been bringing warmth and comfort to domestic and commercial markets since 1906.
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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This part supersedes: 173974
Suitable for following appliances:
• HE 30 + Programmer
• HE 24
• HE 35
• HE 24 + Programmer
• HE 30
• HE 35 + Programmer
• M 30/100