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Sime Thermal Fuse 167°C 6146723

Sime

Sime Thermal Fuse 167°C 6146723

Sime thermal fuse rated at 167°C for Murelle HE 35 R M MET and HE 50 R M MET boilers.

At a glance

  • Part type: thermal fuse
Manufacturer part no.
6146723
Showing prices

£65.48

£54.57 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

A thermal fuse rated at 167°C, manufactured by Sime for use in Murelle HE series gas boilers. It is a one-shot safety device that opens the circuit if the surrounding temperature exceeds its rated limit, cutting power to the appliance. Once tripped, it cannot be reset and must be replaced.

Signs this part needs replacing

  • Boiler locks out or fails to fire after an overheat event
  • Continuity test across the fuse shows an open circuit
  • No power reaching the fan, pump or ignition sequence
  • Fuse body shows discolouration, blistering or heat damage
  • Repeated lockouts traced to the overheat circuit

Before you order

  • Confirm the appliance model against the fitment list above
  • Check the trip temperature marked on the existing fuse matches 167°C
  • Isolate the electrical supply and verify the fuse is open circuit before ordering
  • Inspect the surrounding components for the cause of the overheat condition

Not sure which part?

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