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Worcester Bosch Overheat Thermostat 87161423990

Worcester Bosch

Worcester Bosch Overheat Thermostat 87161423990

At a glance

  • Part type: Overheat thermostat
  • Appliance family: CBI series
  • Also known as 1018157
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87161423990
GC number
E60-493
Showing prices

£35.28

£29.40 ex. VAT · VAT at 20%

Out of stock — order for next delivery

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Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Worcester Bosch 87161423990 is an overheat thermostat used across the Worcester Bosch CBI range of appliances. It monitors appliance temperature and interrupts the burner sequence when an overheat condition is detected, protecting the heat exchanger and surrounding components from heat damage. It is a direct replacement for the thermostat fitted to these models as original equipment.

Signs this part needs replacing

  • The appliance locks out and needs repeated manual resets to run
  • The boiler shuts down shortly after firing, before reaching temperature
  • No heating or hot water is produced despite a call for heat
  • The overheat trip operates when there is no obvious cause elsewhere in the system
  • An overheat condition is indicated at the appliance controls

Before you order

  • Check the GC number on the appliance data plate against the compatibility list above before ordering
  • Confirm the thermostat currently fitted carries the part number 87161423990
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

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