Gas Works

Can incorrectly bleeding radiator lead to boiler / hot water problem?

Anonymous user 09/03/2024 - 3.00 PM

I have just moved into my new flat which has a Vaillant Ecotec Plus 824 boiler which the previous owner had serviced and checked 5 months ago. Upon move in for the first 2 weeks all was fine - I was getting nice hot water from all the taps and showers. Randomly yesterday the boiler had a F.62 fault - gas supply. I reset the boiler and all was fine. Today, I tried to bleed a radiator but looks like I did it in the wrong place - I bled it from the bottom right corner and drained a considerable amount of water. I then noticed the boiler was making gurgling/boiling noises every now an then for 30 seconds at a time which it wasn’t doing before. I checked and saw the pressure had dropped on the boiler to 1.2 bar (didn’t get any fault codes) and so I topped up the pressure to 1.5 and reset the boiler. The problem now is in the taps and shower I now am getting variable hot water. It heats up pretty hot as it was before but then drops to lukewarm, heats up again for a bit then drops down to lukewarm before finally settling down to lukewarm. I’m not sure if the initial gas supply family or my mishandling of the radiator lead to this as I had no problems even after resetting the boiler the first time. I'm not sure why suddenly after 2 weeks of perfect boiler behavior it is acting this way.