Hi there,
We have a Baxi 80e (with instant hot water) in our loft. On occasion i go up there and notice that the pressure has gone down to almost 0. Much less than 0.5 that is its minimum operation specs. We had the expansion vessel replaced about 2 years ago when we were having pressure issues with it before.
I fired the heating up to 30 degrees (so i could make sure the heating stayed on) this morning to watch what it was doing.
Once the heating goes on the pressure gradually rises up to 3.0. At that point the flame light goes off and the pressure then over a few minutes goes back down to 2.5 at which point the flame goes on and the pressure rises to 3.0. Rinse and repeat. I couldn't get it to dump the pressure down to zero after about an hour (at which point the wife was boiling so i had to turn it off)
Does the regulating pressure between 3 and 2.5 sound like the expansion vessel is working correctly? And thus i need to look else where for whether there is a slow leak somewhere dropping the pressure? Unfortunately with it being in the loft i don't go past it that often but today i'll be checking it every couple of hours to see what happens.
There don't seem to be any leaks at the boiler or at any of the radiators.
Can anyone give me any thoughts on what the pressure dropping to zero could be?
We have a Baxi 80e (with instant hot water) in our loft. On occasion i go up there and notice that the pressure has gone down to almost 0. Much less than 0.5 that is its minimum operation specs. We had the expansion vessel replaced about 2 years ago when we were having pressure issues with it before.
I fired the heating up to 30 degrees (so i could make sure the heating stayed on) this morning to watch what it was doing.
Once the heating goes on the pressure gradually rises up to 3.0. At that point the flame light goes off and the pressure then over a few minutes goes back down to 2.5 at which point the flame goes on and the pressure rises to 3.0. Rinse and repeat. I couldn't get it to dump the pressure down to zero after about an hour (at which point the wife was boiling so i had to turn it off)
Does the regulating pressure between 3 and 2.5 sound like the expansion vessel is working correctly? And thus i need to look else where for whether there is a slow leak somewhere dropping the pressure? Unfortunately with it being in the loft i don't go past it that often but today i'll be checking it every couple of hours to see what happens.
There don't seem to be any leaks at the boiler or at any of the radiators.
Can anyone give me any thoughts on what the pressure dropping to zero could be?