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Chaffoteaux Thermistor Temperature Sensor 61000733

Chaffoteaux

Chaffoteaux Thermistor Temperature Sensor 61000733

Chaffoteaux thermistor temperature sensor, part 61000733, for Britony, Calydra and Genesis gas boilers.

At a glance

  • Part type: thermistor temperature sensor
  • Also known as THERMISTOR-TEMP-SENSOR, 1610002
Manufacturer part no.
61000733
GC number
277-834
Showing prices

£24.98

£20.82 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 Chaffoteaux 61000733 is a thermistor temperature sensor used across a range of Chaffoteaux gas boilers, including the Britony, Calydra and Genesis families. It provides the boiler's control system with a resistance-based temperature reading so that heating and hot water output can be regulated. The sensor is listed under the thermistor category of gas boiler spares and carries the superseded code 100073300.

Signs this part needs replacing

  • Hot water temperature is erratic or does not match the setting on the control
  • The boiler cycles on and off more frequently than normal
  • Domestic hot water runs cold or fails to reach temperature
  • The boiler locks out or shows a temperature-related fault code
  • Heating flow temperature reads incorrectly against a thermometer at the flow pipe

Before you order

  • Check your boiler model against the fit list above, including any date range shown for your variant
  • Confirm the part number on the existing sensor matches 61000733 or the superseded code 100073300
  • Identify whether your appliance is the natural gas or LPG version, as fitment is listed separately
  • Inspect the sensor lead and plug for damage before ordering, as wiring faults can mimic sensor failure

Not sure which part?

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