Glowworm SI, CXI , CI, FLEXICOM HX, ULTRACOM , XTRAFAST ,  Temperature Sensor S5739800

Glowworm Sensor S5739800

Suitable for the following Glowworm boilers:

Glowworm SI 18
fits Glowworm SI 30
and Glowworm CXI 30
with Glowworm CI 24
plus Glowworm CI 30
fits Glowworm CI PLUS 30
and Glowworm FLEXICOM HX 12
with Glowworm FLEXICOM HX 15
plus Glowworm FLEXICOM HX 18
fits Glowworm FLEXICOM SX 18
and Glowworm FLEXICOM CX 24
with Glowworm FLEXICOM HX 24
plus Glowworm FLEXICOM CX 30
fits Glowworm FLEXICOM HX 30
and Glowworm FLEXICOM SX 30
with Glowworm FLEXICOM CX 35
plus Glowworm FLEXICOM HX 35
fits Glowworm ULTRACOM 12 HXI
and Glowworm ULTRACOM 15 HXI
with Glowworm ULTRACOM 18 HXI
plus Glowworm ULTRACOM 18 SXI
fits Glowworm ULTRACOM 24 CX
and Glowworm ULTRACOM 24 CXI
with Glowworm ULTRACOM 24 HXI
plus Glowworm ULTRACOM 30 CX
fits Glowworm ULTRACOM 30 CXI
and Glowworm ULTRACOM 30 HXI
with Glowworm ULTRACOM 30 SXI
plus Glowworm ULTRACOM 38 CXI
fits Glowworm ULTRACOM 38 HXI
and Glowworm XTRAFAST 96
with Glowworm XTRAFAST 120
plus Glowworm ULTRACOM 2 12 SXI
fits Glowworm ULTRACOM 2 18 SXI
and Glowworm ULTRACOM 2 30 SXI
with Glowworm ULTRACOM 2 24 CXI
plus Glowworm ULTRACOM 2 30 CXI
fits Glowworm ULTRACOM 2 35 CXI
and Glowworm ULTRACOM 2 35 STORE

The sensor, otherwise known as a thermistor.

It is employed to decrease circuit resistance in line with temperature increases.

A boiler’s printed control board (PCB) sends a current to the thermistor.

It then decides whether a decrease or increase in heat is required by reading the relative resistance.