Safety
Why Combi Boiler Repair Is Not a DIY Job
Understanding the law, the risks, and where the line is.
It's natural to want to fix things yourself, and with a combi boiler there are a few safe checks you can do — reading the pressure gauge, checking the thermostat, noting an error code. But the moment a repair involves the gas supply, the burner, the flue or the sealed pressurized system, it crosses into licensed work for good reasons.
In British Columbia, gas work is regulated under the Safety Standards Act and must be performed by a licensed gas fitter. Beyond the law, the risks — gas leaks, carbon monoxide, scalding, electric shock and voided warranties — are simply too high.
What only a licensed technician should do
- Anything involving the gas valve or gas connections
- Opening the sealed combustion chamber or burner
- Flue and venting work
- Replacing the heat exchanger, gas valve, fan or PCB
- Combustion analysis and re-commissioning
What's safe for a homeowner
You can safely top up system pressure via the filling loop per your manual, bleed radiators, check and replace thermostat batteries, reset the boiler once if the manual permits, and keep the area around the boiler clear. Anything beyond that should be left to a professional.
This is not a DIY repair
Combi boilers are gas-fired appliances regulated under the BC Safety Standards Act. Opening the unit, touching the gas valve, or working on the flue without a valid BC gas-fitter licence is both unsafe and illegal. Diagnosing the fault is helpful — fixing it should always be left to a certified technician.
Call 778-909-5731Frequently Asked Questions
More safety guides
Talk to a Licensed Combi Boiler Specialist
Free, no-obligation quotes across Greater Vancouver. CombiBoiler.ca — A division of ROMA Heating Ltd..