5 Signs Your Boiler Needs Professional Service
A banging or rumbling sound (kettling) usually means limescale buildup on the heat exchanger. Water
1. Banging or Kettling Noises
A banging or rumbling sound (kettling) usually means limescale buildup on the heat exchanger. Water trapped under the scale overheats and produces steam bubbles that collapse with noise.
2. Pressure Keeps Dropping
If you need to repressurize your boiler weekly, there is a slow water leak somewhere in the system. This could be from a pipe, radiator valve, or the boiler itself.
3. Pilot Light Goes Out
A pilot light that repeatedly goes out indicates a failing thermocouple, a draft issue, or a gas pressure problem. This safety feature prevents unburned gas accumulation.
4. Radiators Not Heating
Cold spots on radiators or radiators that do not heat at all suggest trapped air, sludge buildup, or a circulation pump issue. Bleeding may help temporarily but recurring issues need service.
5. Error Codes on Display
Modern boilers display error codes that point to specific faults. Even if the boiler restarts after a reset, recurring errors indicate a developing problem that should be diagnosed.
Professional Inspection in Greater Vancouver
If you notice any of these signs, a professional inspection is the best next step. CANRO Heating & Cooling provides thorough diagnostic inspections across Greater Vancouver. Our technicians assess your equipment condition and provide an honest recommendation — whether repair or replacement is the most cost-effective solution. Call (604) 359-1081 to schedule your inspection.
Safety Reminder
If you smell gas, suspect carbon monoxide or believe there is an immediate danger, leave the property and contact emergency services or the appropriate gas emergency authority. Do not remain inside — exit the building immediately and call for help from outside.