Hoping somebody can help me understand a weird boiler issue I had this weekend.
I'm in the process of converting a cellar, and as part of this I needed to raise all the central heating pipes into the floor joists above as they were hanging down. (Basically just shifting them so I could put the cellar ceiling in.)
I drained down the system, and spent all day moving the pipes. (One thing I did, which I think was a stupid mistake, was to leave the water on so the kids could have a shower. With hindsight, and some googling, looks like it's a bad idea to run hot water with the CH drained.)
After I'd shifted the pipework I re-pressurised the system, but found the boiler (Worcester Junior 28i) wouldn't fire. Was just getting a flashing red light. (No pump noise, sound of ignition - just silence and a flashing light.) Tried resetting it, checked the fuses, powered off at mains for 10 mins - but still no hot water. This is when I started Googling, and assumed I'd fried something when I ran the hot water - my guess was the PCB.
After being heavily berated by my wife I admitted defeat, decided it was beyond me to fix, and called out British Gas.
Fast forward to Sunday morning. I noticed there was a slight drip from one of my joints (soldering too close to a bend!) so I re-drained the system, re-joined where the leaky fitting was, and re-pressurised.
Couple of hours later while waiting for British Gas to come out I thought I'd try the reset again - dunno why. Anyway - boiler fired fine, hot water works, CH works fine too.
Cancelled British Gas to save myself a call-out charge, but now this is really niggling cos I can't figure out the cause.
Can't have been overheating, because the boiler was down for 6 hours unable to reset. Can't have been a fried component, because it would have stayed fried. It seems that it was draining / repressurising a second time that sorted it.
I can't believe it was one leaky joint that stopped it firing. (It was a drip every couple of seconds.) Only thing I can think is an air bubble or something.
Anyone shed any light on this? It's driving me mad!
I'm in the process of converting a cellar, and as part of this I needed to raise all the central heating pipes into the floor joists above as they were hanging down. (Basically just shifting them so I could put the cellar ceiling in.)
I drained down the system, and spent all day moving the pipes. (One thing I did, which I think was a stupid mistake, was to leave the water on so the kids could have a shower. With hindsight, and some googling, looks like it's a bad idea to run hot water with the CH drained.)
After I'd shifted the pipework I re-pressurised the system, but found the boiler (Worcester Junior 28i) wouldn't fire. Was just getting a flashing red light. (No pump noise, sound of ignition - just silence and a flashing light.) Tried resetting it, checked the fuses, powered off at mains for 10 mins - but still no hot water. This is when I started Googling, and assumed I'd fried something when I ran the hot water - my guess was the PCB.
After being heavily berated by my wife I admitted defeat, decided it was beyond me to fix, and called out British Gas.
Fast forward to Sunday morning. I noticed there was a slight drip from one of my joints (soldering too close to a bend!) so I re-drained the system, re-joined where the leaky fitting was, and re-pressurised.
Couple of hours later while waiting for British Gas to come out I thought I'd try the reset again - dunno why. Anyway - boiler fired fine, hot water works, CH works fine too.
Cancelled British Gas to save myself a call-out charge, but now this is really niggling cos I can't figure out the cause.
Can't have been overheating, because the boiler was down for 6 hours unable to reset. Can't have been a fried component, because it would have stayed fried. It seems that it was draining / repressurising a second time that sorted it.
I can't believe it was one leaky joint that stopped it firing. (It was a drip every couple of seconds.) Only thing I can think is an air bubble or something.
Anyone shed any light on this? It's driving me mad!
