Glowworm 432867 Thermistor For Swiftflow, Hot Water Express, Dovedale Boilers

Glowworm Thermistor 432867

Rare part, now unavailable from most other suppliers.

Suitable for the following Glowworm boilers:

• Glowworm Dovedale
• Glowworm Hot Water Express
• Glowworm Swiftflow

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.