Repair-first boiler service
Boiler Condensate Blockage
Boiler fault testing and repair
Blocked condensate drainage can stop a condensing boiler and may damage internal components if ignored.
Call 647-699-2474Boiler fault diagnosis
What this symptom can mean
Blocked condensate drainage can stop a condensing boiler and may damage internal components if ignored.
The exact cause cannot be confirmed from the symptom alone. Modern boilers may stop because a safety control detected an abnormal condition somewhere else in the system.
What we test
- Active and stored fault codes
- System pressure, temperature, and hydronic flow
- Ignition sequence and flame rectification
- Gas supply and combustion where applicable
- Venting, combustion air, fan, and condensate
- Sensors, controls, pumps, valves, and wiring
Do not keep resetting a repeated safety fault
A reset may temporarily restart the boiler without correcting the cause. Repeated lockouts, leaks, unusual odours, overheating, or venting faults should be professionally diagnosed.
Book boiler service
Send the boiler details before the visit.
Include the brand, model, visible error code, city, and a clear description. This helps us prepare for a more efficient diagnostic visit.