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Glow-worm NTC Thermistor 0020118646

Glow-worm

Glow-worm NTC Thermistor 0020118646

NTC thermistor for Glow-worm Betacom 24C and 30C gas boilers, superseding part 0020061581.

At a glance

  • Also known as 1340150
Manufacturer part no.
0020118646
Showing prices

£30.12

£25.10 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The NTC thermistor is a temperature-sensing component used on Glow-worm Betacom gas boilers. It provides the boiler's control system with a resistance signal that changes with temperature, allowing the PCB to monitor and regulate the appliance's water temperature. This part supersedes the earlier NTC 0020061581.

Signs this part needs replacing

  • Boiler locks out or shuts down intermittently with a temperature-related fault code
  • Domestic hot water or heating runs hot then cold, or temperature is erratic
  • Boiler fires but cuts out before reaching the set temperature
  • Fault code logged for a sensor or thermistor circuit fault
  • Resistance reading from the sensor falls outside the expected range for the measured temperature

Before you order

  • Confirm the boiler model and GC number against the appliance data badge
  • Check the fault code or diagnostic reading points to the NTC sensor rather than the PCB or wiring
  • Inspect the sensor lead and plug for damage or corrosion before replacing the sensor itself
  • Note that this part supersedes 0020061581, so an existing sensor may carry the older number

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.