Thanks so much this saved me a lot of time and money. I turned off the boiler, then I followed the feed of the condensation pipe to under my sink where it joined with my main kitchen sink drain pipe. For mine, it was connected in a manner that allowed me to pull it out at that joint and let it bleed out . The key thing was to also put my gloved finger into the connection it would go back into, just to ensure there was no blockage and clear it out.I then reconnected and restarted the boiler and it worked!
A brilliant video thank you so much I follow your steps found block in pipe , cleared it and reset boiler and everything back to normal thanks for saving my time money and saving my night from Cold 🥶.. thanks
It's hard to tell but the condense pipe where you stuck your finger in is supposed to fall down slightly, it doesn't look like it does in the video, also your luck that the joints came apart because they are supposed to be glued together