Vaillant High-Limit Thermostat Replacement in Greater Vancouver
Genuine Vaillant high-limit thermostat, supplied and professionally installed by Technical Safety BC–licensed gas fitters. Never sold for DIY.
The High-Limit Thermostat on Your Vaillant Boiler
The high-limit thermostat is a safety control that shuts the burner off if water temperature exceeds a safe maximum, protecting the boiler and home from overheating. Repeated trips signal a circulation or sensor problem that must be fixed, not bypassed.
On Vaillant systems — including models such as ecoTEC plus, ecoTEC pro, ecoFIT — a failing high-limit thermostat often shows up as f22 low water or related symptoms. We diagnose it precisely and install the correct genuine Vaillant part.
Typical Lifespan
10-15 years
Brand
Vaillant
Part Category
Safety
Safety Warning
A high-limit that keeps tripping is protecting you from a real overheating cause — never just reset and ignore it.
Signs of a Failing Vaillant High-Limit Thermostat
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 High-Limit Thermostat?
Vaillant High-Limit Thermostat Service Across Metro Vancouver
Frequently Asked Questions
Vaillant High-Limit Thermostat Replacement, Done Right
Genuine Vaillant parts, professionally installed and tested across Greater Vancouver.
A Division of CanroHeat.ca · Licensed Gas Fitters · Serving Greater Vancouver since 1985