Baxi Boiler Limit Thermostat with Screws, Overheat Safety Thermostat, Replacement Temperature Limit Stat, Boiler Spare

In stock
£10.25

Baxi Boiler Limit Thermostat with Screws, Overheat Safety Thermostat, Replacement Temperature Limit Stat, Boiler Spare

SKU W-498736
Manufacturer part number
7809940
EAN
5039177901419
£10.25
inc VAT£8.54 ex VAT
Lead time: 1-5 working days

Price Beater

Found this item cheaper elsewhere? Tell us where and our team will see if we can beat the price you've seen.

Product: Baxi Boiler Limit Thermostat with Screws, Overheat Safety Thermostat, Replacement Temperature Limit Stat, Boiler Spare (Part no. W-498736)

UK or international, for example 01234 567890 or +44 1234 567890

If you leave out https:// we add it for you.

Questions about this part? Talk to our team

Phone: 01226 369637

Opening times

Monday to Friday 08:00 to 17:00
Saturday and Sunday: closed

Delivery

Free standard delivery on orders over £100 ex VAT. Orders below this carry a £7.95 inc VAT delivery charge. Express delivery items £19.95 inc VAT, allow 1 to 2 working days. Delivery details and surcharges

Need delivery on or before a specific day? Ask our team.

Description

Product Overview

The Baxi 7809940 limit thermostat is a boiler safety component designed to help protect your heating system from overheating. Used as a replacement temperature limit stat, it helps shut down the appliance when temperatures exceed safe limits. Supplied with fixing screws for straightforward installation by a qualified engineer.

Key Features

  • Overheat safety protection – helps prevent boiler damage by cutting out when temperatures rise too high.
  • Direct replacement part – designed for compatible Baxi boilers to restore safe operation and reliability.
  • Includes fixing screws – helps make replacement quicker and reduces the need to source extra fittings.
  • Ideal for fault repairs – suitable for resolving overheat lockouts and temperature cut-out related issues (where the thermostat is confirmed faulty).
  • Genuine boiler spare – ensures correct fit and dependable performance when matching the MPN.

Use Case / Application

This limit thermostat is typically fitted inside a boiler as part of the appliance’s temperature safety control system. Suitable for domestic heating and hot water systems in homes, flats and light commercial settings where a compatible Baxi boiler is installed. Common applications include servicing and repair work, replacing a failed overheat cut-out thermostat, or restoring safe boiler operation after recurring over-temperature shutdowns.

Problem → Solution

Ideal for replacing a faulty boiler overheat cut-out thermostat to help stop nuisance shutdowns and restore safe, stable heating performance.

Product Specifications

  • Manufacturer – Baxi
  • Manufacturer Part Number (MPN) – 7809940
  • EAN / Barcode – 5039177901419
  • Pack Contents / Includes – Limit thermostat; fixing screws
  • Product Type – Boiler limit thermostat (temperature limit stat / overheat safety thermostat)
  • Typical Applications / Use Cases – Boiler servicing and repair; replacement overheat cut-out thermostat in compatible Baxi boilers

Why Buy from BHL?

Baxi is a leading UK boiler manufacturer, known for dependable heating solutions and readily available genuine spares. Order the Baxi 7809940 limit thermostat from BHL for a reliable replacement part that helps maintain safe boiler operation. Buy online today with competitive pricing and free* & fast UK delivery, shipped with care from UK warehouses. BHL are a specialist online merchant, trusted by thousands of satisfied customers online since 1998 with thousands of 5 star reviews.

*see our terms

Reviews

Buying guide: Boiler Spares

Boiler spares are replacement parts for gas, LPG and oil boilers: printed circuit boards, fans, gas valves, pumps, diverter valves, heat exchangers, sensors, pressure gauges, burners, electrodes, seals, casing panels and flue parts. Most are made for one manufacturer, and often for a narrow range of models, so identifying the boiler correctly matters more than anything else.

Identify the boiler first

Find the data badge, usually behind the front panel or under the controls cover. It shows the manufacturer, the model and the GC (Gas Council) number, a seven-digit reference for the exact appliance. Natural gas and LPG versions of the same boiler usually have different GC numbers, and parts can change between production runs, so the GC number and serial number are the safest way to match a part. The boiler's installation and servicing manual lists the parts for each model.

Part numbers and replacements

Search by the manufacturer's part number where you have it. Manufacturers sometimes replace a part with a newer version under a new number; only use a replacement that the manufacturer lists for your model. Some repairs need a kit rather than a single part, for example a part supplied with new seals or fixings.

Safety

By law, work on gas boilers and their gas parts must be carried out by a Gas Safe registered engineer qualified for that type of appliance; ask to see their ID card before work starts. Oil boilers should be worked on by a suitably qualified technician.

For thermostats and programmers, see heating controls.

Shop all Boiler Spares

Related products

Customers also bought