Boiler Showing an Error Code? It's Probably a Frozen Condensate Pipe – Here's How to Fix It

Boiler Showing an Error Code? It's Probably a Frozen Condensate Pipe – Here's How to Fix It

⚠️ Difficulty: Medium — The repair involves handling warm water near a boiler and working outdoors in cold conditions. You will need a kettle and a container. Typically takes 1–2 hours depending on how quickly the pipe thaws. ⚠️ Any intervention on the appliance may void the manufacturer's warranty if it is still active. The secret most technicians don't tell you There is a small secret that most boiler service companies prefer you didn't know: this specific repair uses nothing more than a kettle of water, costs next to nothing, and takes under an hour to perform. What they charge a fixed call-out fee for, you can do yourself with a bit of patience and the right approach. What to do when your boiler flashes an error code and won't fire If your condensing boiler has stopped working and shows an error code, and outdoor temperatures have been at or below 0°C, the most likely cause is a frozen condensate discharge pipe. Thaw the external section of the pipe by applying war…