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Baxi Limit Thermostat 7661894

Baxi

Baxi Limit Thermostat 7661894

Limit thermostat for Baxi 224, 228, 424 and 428 ErP Combi boilers, part number 7661894.

At a glance

  • Appliance family: Baxi ErP Combi
  • Also known as 1132196
Manufacturer part no.
7661894
Showing prices

£17.04

£14.20 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 Baxi 7661894 is a limit thermostat used on Baxi ErP Combi boilers. It monitors boiler temperature and interrupts the burner circuit when the set limit is exceeded, protecting the appliance from overheating. It is a serviceable component within the boiler's safety and control circuit.

Signs this part needs replacing

  • The boiler repeatedly locks out on overheat and needs resetting.
  • The appliance shuts down during a heating or hot water demand and will not restart until it has cooled.
  • Lockouts recur shortly after each reset, with no other obvious cause.
  • The boiler fails to fire at all where the limit thermostat circuit is open.
  • The thermostat shows signs of heat damage, corrosion or a loose or damaged connection.

Before you order

  • Confirm your appliance model against the fit list above.
  • Check the part number on the existing thermostat matches 7661894.
  • Isolate the electrical supply and gas before any work on the boiler.
  • Verify the fault is not caused by poor circulation, a faulty pump or a restricted heat exchanger before replacing the thermostat.

Not sure which part?

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