I've been having problems with my boiler - randomly losing pressure. Ultimately, the boiler stopped working. I have a service contract with NPower, so finally called them out.
NPower came and got it working again, but said the issue with losing pressure needed further investigation. He suggested turning off the flow and return to isolate the heating. If the pressure still went down, then it's a problem with the boiler and not a radiator leak.
(He checked the EV and it was fully charged. He checked the PRV and there was no sign of water.)
I did as he suggested and the pressure did drop to zero and eventually the boiler stopped working. So I called them back again. They came this morning.
Unfortunately, it wasn't the same guy again. He came at the problem without experience of what's already been done. He's convinced it's the PRV and has ordered the part for next week. In the meantime we're left with a system that will probably stop working again, leaving us with no hot water or heating for the umpteenth time.
He said we should just keep topping up the boiler to 1bar every time it drops. If the boiler stops working. Refill and reset. Rinse and repeat.
I got home from work at 1900 and the boiler was at 0. I topped it up to 1 bar and placed a bag over the PRV pipe outside.
An hour and a half later, the pressure has dropped to 0.5 bar and there is no water in the bag. Well, there is, but it looks more like very mild condensation; not what I'd expect from a dripping PRV. Unless that's what it would look like?
I'm just curious as what else it could be, if not the PRV?
NPower came and got it working again, but said the issue with losing pressure needed further investigation. He suggested turning off the flow and return to isolate the heating. If the pressure still went down, then it's a problem with the boiler and not a radiator leak.
(He checked the EV and it was fully charged. He checked the PRV and there was no sign of water.)
I did as he suggested and the pressure did drop to zero and eventually the boiler stopped working. So I called them back again. They came this morning.
Unfortunately, it wasn't the same guy again. He came at the problem without experience of what's already been done. He's convinced it's the PRV and has ordered the part for next week. In the meantime we're left with a system that will probably stop working again, leaving us with no hot water or heating for the umpteenth time.
He said we should just keep topping up the boiler to 1bar every time it drops. If the boiler stops working. Refill and reset. Rinse and repeat.
I got home from work at 1900 and the boiler was at 0. I topped it up to 1 bar and placed a bag over the PRV pipe outside.
An hour and a half later, the pressure has dropped to 0.5 bar and there is no water in the bag. Well, there is, but it looks more like very mild condensation; not what I'd expect from a dripping PRV. Unless that's what it would look like?
I'm just curious as what else it could be, if not the PRV?