Hi folks, could do with some help here please.
We have a boiler downstairs in the kitchen, hot water tank and pressure valve etc upstairs. I had notice the pressure dropping consistently when cold, but when the heating is on, it seems fine.
Normally about one bar when the heating is on. Once its cooled, it drops but always goes back. House is a new build and we've had a number of issues with it, the biggest seems to be that the builders didn't tighten any pipes (water main leak, just about every sink has leaked). We'd noticed despite the rads heating up, the house wasn't exactly warm.
Anyway, multiple visits from plumbers and they suggested there is a leak and to look for water marks on the ceilings. Haven't seen any. They did find two seals on rads leaking, which were fixed. Last weekend they came and replaced the expansion valve and the pressure release valve (? I think ?) and also noticed a leak through a corroded hose in a plinth heater (leaking behind cupboards onto tiles) which seemed to work. Until today, notice heating wasn't as effective and sure enough, when on the pressure is up, when cold it's dead zero.
I need some advice as the builders seem useless (compensation claims pending but I still need this fixed). I can't understand if water/air is leaking, and if so why all the rads still get hot. It's hard to recognise how warm the house really is as well given the temperature is all over the place outside at the moment but I'm sure it's warmer when pressure is at one bar cold.
Appreciate any thoughts,
Thanks,
We have a boiler downstairs in the kitchen, hot water tank and pressure valve etc upstairs. I had notice the pressure dropping consistently when cold, but when the heating is on, it seems fine.
Normally about one bar when the heating is on. Once its cooled, it drops but always goes back. House is a new build and we've had a number of issues with it, the biggest seems to be that the builders didn't tighten any pipes (water main leak, just about every sink has leaked). We'd noticed despite the rads heating up, the house wasn't exactly warm.
Anyway, multiple visits from plumbers and they suggested there is a leak and to look for water marks on the ceilings. Haven't seen any. They did find two seals on rads leaking, which were fixed. Last weekend they came and replaced the expansion valve and the pressure release valve (? I think ?) and also noticed a leak through a corroded hose in a plinth heater (leaking behind cupboards onto tiles) which seemed to work. Until today, notice heating wasn't as effective and sure enough, when on the pressure is up, when cold it's dead zero.
I need some advice as the builders seem useless (compensation claims pending but I still need this fixed). I can't understand if water/air is leaking, and if so why all the rads still get hot. It's hard to recognise how warm the house really is as well given the temperature is all over the place outside at the moment but I'm sure it's warmer when pressure is at one bar cold.
Appreciate any thoughts,
Thanks,
