Advice
Signs Your Combi Boiler Needs a Service
Catch small issues before they become breakdowns.
Boilers rarely fail without warning. Subtle changes — a longer time to heat up, new noises, rising bills, or occasional fault codes — often signal that a service is overdue. Acting on these early prevents inconvenient and expensive breakdowns.
If you notice any of the signs below, book a service.
Watch for these signs
- Rising gas bills without colder weather
- New noises (humming, banging, kettling)
- Slower heating or weaker hot water
- Occasional fault codes or lockouts
- Pressure that needs frequent topping up
- It's been over a year since the last service
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.
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