Can you replace the flame sensor on my Vaillant boiler?

Yes. We supply and professionally install the genuine part across Greater Vancouver. Our licensed technicians diagnose the fault, fit the correct OEM part, and test the system.

Do you sell the Vaillant flame sensor on its own?

No. Boiler parts are supplied and installed by our licensed technicians as part of a repair — we do not sell parts for individual or DIY purchase. We install the Vaillant flame sensor as part of a certified repair so it is fitted correctly, tested for safety, and keeps your Vaillant warranty valid.

How do I know my Vaillant flame sensor has failed?

Typical symptoms include: Boiler lights then shuts off; Repeated lockouts after ignition; E012 / flame-loss codes; Short-cycling on start-up. On Vaillant boilers this can also show as F22 Low Water or F28 Ignition Fault. We confirm the diagnosis before any work.

Vaillant · Ignition & Flame

Vaillant Flame Sensor Replacement in Greater Vancouver

Genuine Vaillant flame sensor, supplied and professionally installed by Technical Safety BC–licensed gas fitters. Never sold for DIY.

Call (604) 359-1081 Request Service

The Flame Sensor on Your Vaillant Boiler

The flame sensor (flame-rectification probe) confirms a flame is actually burning. If it cannot detect flame, the control shuts the gas off within seconds. A dirty or failed sensor causes the boiler to light then drop out repeatedly.

On Vaillant systems — including models such as ecoTEC plus, ecoTEC pro, ecoFIT — a failing flame sensor often shows up as f22 low water or related symptoms. We diagnose it precisely and install the correct genuine Vaillant part.

Typical Lifespan

5-10 years

Brand

Vaillant

Part Category

Ignition & Flame

Safety Warning

A boiler that fires then locks out within seconds is the textbook symptom of a failing flame sensor.

Signs of a Failing Vaillant Flame Sensor

Boiler lights then shuts off

Repeated lockouts after ignition

E012 / flame-loss codes

Short-cycling on start-up

Parts Are Professionally Installed — Not Sold for DIY

For your safety and to keep your manufacturer warranty valid, BoilerPart.ca does not sell loose boiler parts over the counter or for self-installation. Under BC regulations, gas appliance components must be installed by a licensed gas fitter. Every part we source is genuine OEM and is professionally fitted, tested, and certified by our Technical Safety BC–licensed technicians as part of a complete repair or installation.

Why Have Us Install Your Vaillant Flame Sensor?

Genuine Vaillant OEM flame sensor — no generic substitutes

Installed by Technical Safety BC–licensed gas fitters

Keeps your Vaillant manufacturer warranty intact

Full combustion, pressure and safety testing after fitting

Up-front pricing — you approve before we start

Backed by our workmanship guarantee

About the Flame Sensor All Vaillant service

Vaillant Flame Sensor Service Across Metro Vancouver

Frequently Asked Questions

Vaillant Flame Sensor Replacement, Done Right

Genuine Vaillant parts, professionally installed and tested across Greater Vancouver.

Call (604) 359-1081 Request Service

A Division of CanroHeat.ca · Licensed Gas Fitters · Serving Greater Vancouver since 1985