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

How do I know my NTI 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 NTI boilers this can also show as Ignition Failure or False Flame. We confirm the diagnosis before any work.

NTI · Safety

NTI Low Water Cutoff Replacement in Greater Vancouver

Genuine NTI 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 NTI 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 NTI systems — including models such as Trinity Tft, Trinity Lx, TX Series — a failing low water cutoff often shows up as ignition failure or related symptoms. We diagnose it precisely and install the correct genuine NTI part.

Typical Lifespan

10-15 years

Brand

NTI

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 NTI 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.