Can you replace the thermocouple on my Weil-McLain boiler?

Yes. BoilerPart.ca supplies and professionally installs the genuine Weil-McLain thermocouple across Greater Vancouver. Our licensed technicians diagnose the fault, fit the correct OEM part, and test the system.

Do you sell the Weil-McLain thermocouple 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 Weil-McLain thermocouple as part of a certified repair so it is fitted correctly, tested for safety, and keeps your Weil-McLain warranty valid.

How do I know my Weil-McLain thermocouple has failed?

Typical symptoms include: Pilot won't stay lit; Gas valve closes when button released; No hot water; Cold boiler. On Weil-McLain boilers this can also show as Low Water Cutoff Trip or Ignition Lockout. We confirm the diagnosis before any work.

Weil-McLain · Ignition & Flame

Weil-McLain Thermocouple Replacement in Greater Vancouver

Genuine Weil-McLain thermocouple, supplied and professionally installed by Technical Safety BC–licensed gas fitters. Never sold for DIY.

Call (604) 359-1081 Request Service

The Thermocouple on Your Weil-McLain Boiler

The thermocouple is a safety probe that senses the pilot flame and holds the pilot gas valve open. When it weakens, the gas valve closes and the pilot goes out — the most common cause of a pilot that will not stay lit.

On Weil-McLain systems — including models such as ECO, ECO Tec, Ultra — a failing thermocouple often shows up as low water cutoff trip or related symptoms. We diagnose it precisely and install the correct genuine Weil-McLain part.

Typical Lifespan

3-5 years

Brand

Weil-McLain

Part Category

Ignition & Flame

Safety Warning

A pilot that holds while you press the knob but dies on release almost always needs a new thermocouple.

Signs of a Failing Weil-McLain Thermocouple

Pilot won't stay lit

Gas valve closes when button released

No hot water

Cold boiler

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.