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Worcester Bosch Temperature Sensor (NTC) 87186504540

Worcester Bosch

Worcester Bosch Temperature Sensor (NTC) 87186504540

NTC temperature sensor 87186504540 for Worcester Bosch Greenstar 2000 Combi GR2300iW appliances.

At a glance

  • Also known as 8905411
Manufacturer part no.
87186504540
Showing prices

£47.09

£39.24 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 Worcester Bosch 87186504540 is an NTC temperature sensor for Greenstar 2000 Combi GR2300iW appliances. It feeds temperature readings back to the boiler control so the appliance can regulate heating and domestic hot water operation. As an NTC device, its resistance falls as the sensed temperature rises.

Signs this part needs replacing

  • Boiler locks out or will not run, with a temperature-related fault indicated
  • Heating or hot water temperature drifts from the set value
  • Boiler short-cycles or fails to fire when there is a demand
  • Domestic hot water temperature is erratic or inconsistent
  • Resistance reading on the sensor is out of range for the sensed temperature

Before you order

  • Confirm the appliance model and GC number against the fit list above
  • Check the fault code or resistance reading to confirm the sensor is at fault
  • Identify the sensor position on the appliance before ordering, as several sensors may be used
  • Check the electrical connector type and lead length on the existing sensor match the replacement

Not sure which part?

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