Boiler Flow Sensor Replacement in Greater Vancouver
Measures hot-water flow on tankless and combi units. Supplied and professionally installed by licensed gas fitters — never sold for DIY.
What the Flow Sensor Does
The flow sensor measures domestic hot-water flow so a tankless or combi unit knows when to fire and how hard. Scale and debris are the usual enemies, causing no hot water or false activation.
A turbine or hall-effect sensor counts water flow and tells the control to start heating the instant a tap opens, modulating output to match the draw.
We supply and fit the flow sensor as part of a complete boiler repair or new installation, and inspect it during annual maintenance for homes across Greater Vancouver.
Typical Lifespan
8-12 years
Category
Controls & Sensors
Service Priority
medium
Safety Warning
No hot water despite good mains flow often traces to a scaled flow sensor — descaling and water treatment help.
Signs Your Flow Sensor Needs Attention
Noticing any of these in your Greater Vancouver home? Our technicians can diagnose it same-day.
Common causes of flow sensor failure
- Scale on the turbine
- Debris jamming the sensor
- Sensor electronics failure
- Low inlet flow
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.
Flow Sensor for Every Major Boiler Brand
We supply and install genuine flow sensors for these brands across Greater Vancouver.
How We Replace Your Flow Sensor
Call & Diagnose
Describe the symptoms and we dispatch a licensed technician to confirm the flow sensor fault.
Up-Front Quote
You approve the diagnosis and price before any work begins — no surprises.
Install Genuine Part
We fit the correct OEM flow sensor to manufacturer spec.
Test & Certify
Full combustion, pressure and safety testing, backed by our workmanship guarantee.
Boiler Problems a Failing Flow Sensor Can Cause
Seeing one of these symptoms? A worn or failed flow sensor is a common cause — we diagnose and repair it across Greater Vancouver.
Our Guarantees & Warranties
Every repair and installation is backed by genuine parts, licensed workmanship, and a promise to make it right.
Workmanship Guarantee
Every repair and installation is backed by our written workmanship guarantee. If a part we installed fails because of our work, we make it right.
Genuine OEM Parts
We fit only manufacturer-original (OEM) components so your boiler performs to spec and keeps its factory warranty intact.
Manufacturer Warranty Honoured
As an authorised service provider for the brands we work on, our installs preserve and register your manufacturer parts warranty.
Licensed & Insured
All work is completed by Technical Safety BC–licensed gas fitters (Licence LGA0043870, Boiler Permit LBP0046450). We are fully licensed, bonded and insured for your protection.
Up-Front Pricing
You approve the diagnosis and quote before any work begins. No hidden fees and no surprise charges.
Satisfaction Commitment
Backed by the full HVAC resources of CanroHeat.ca and four decades of service in Greater Vancouver since 1985.
Flow Sensor Replacement Across Metro Vancouver
Same-day boiler parts installation throughout Greater Vancouver and the Fraser Valley.
Frequently Asked Questions
Need a Flow Sensor Replaced?
Genuine OEM parts, professionally installed and tested. Same-day service across Greater Vancouver.
A Division of CanroHeat.ca · Licensed Gas Fitters · Serving Greater Vancouver since 1985