Can you replace the low water cutoff on my Dunkirk 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 Dunkirk low water cutoff 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 Dunkirk low water cutoff as part of a certified repair so it is fitted correctly, tested for safety, and keeps your Dunkirk warranty valid.

How do I know my Dunkirk low water cutoff has failed?

Typical symptoms include: Boiler locks out on low water; No heat after pressure loss; LWCO fault indication; Repeated trips. On Dunkirk boilers this can also show as No Heat or Ignition Failure. We confirm the diagnosis before any work.

Dunkirk · Safety

Dunkirk Low Water Cutoff Replacement in Greater Vancouver

Genuine Dunkirk low water cutoff, supplied and professionally installed by Technical Safety BC–licensed gas fitters. Never sold for DIY.

Call (604) 359-1081 Request Service

The Low Water Cutoff on Your Dunkirk Boiler

The low water cutoff (LWCO) is a safety control that shuts the burner off if the boiler loses water, preventing dangerous dry-firing. It is required on many systems and must never be bypassed.

On Dunkirk systems — including models such as Q90-200, XEB, PWX — a failing low water cutoff often shows up as no heat or related symptoms. We diagnose it precisely and install the correct genuine Dunkirk part.

Typical Lifespan

10-15 years

Brand

Dunkirk

Part Category

Safety

Safety Warning

A low-water cutout is protecting your boiler from dry-firing — find and fix the water loss, never bypass the device.

Signs of a Failing Dunkirk Low Water Cutoff

Boiler locks out on low water

No heat after pressure loss

LWCO fault indication

Repeated trips

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 Dunkirk Low Water Cutoff?

Genuine Dunkirk OEM low water cutoff — no generic substitutes

Installed by Technical Safety BC–licensed gas fitters

Keeps your Dunkirk 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 Low Water Cutoff All Dunkirk service

Dunkirk Low Water Cutoff Service Across Metro Vancouver

Frequently Asked Questions

Dunkirk Low Water Cutoff Replacement, Done Right

Genuine Dunkirk 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