Hi all, back again with yet another question about my grant vortex combi boiler 😩
Sorted all previous problems and was running sweet until recently… now it’s loosing pressure really quick, from 1.5 bar down to 0 in a couple of hours (even when on standby neither hot water or central heating selected).
There are no leaks internally in the house as would be flooded by now with the amount I’ve repressurised and haven’t used CH in a few weeks. Definitely no leaks inside the boiler on joints, valves, prv etc… also no excess leaking from the condensation pipe.
There is a damp patch surrounding boiler on the concrete base it’s sat on, could it be a possible split/corroded water tank? Though there does seem to be droplets on the boiler lid, suggesting maybe condensation from inside?
The only other thing I can think of is the expansion vessel, but wouldn’t this cause pressure to increase when heating up? It’s not leaking water through the valve… the pressure loss is within 2 hours from 1.5 bar to 0.
Any pointers would be greatly appreciated!
Sorted all previous problems and was running sweet until recently… now it’s loosing pressure really quick, from 1.5 bar down to 0 in a couple of hours (even when on standby neither hot water or central heating selected).
There are no leaks internally in the house as would be flooded by now with the amount I’ve repressurised and haven’t used CH in a few weeks. Definitely no leaks inside the boiler on joints, valves, prv etc… also no excess leaking from the condensation pipe.
There is a damp patch surrounding boiler on the concrete base it’s sat on, could it be a possible split/corroded water tank? Though there does seem to be droplets on the boiler lid, suggesting maybe condensation from inside?
The only other thing I can think of is the expansion vessel, but wouldn’t this cause pressure to increase when heating up? It’s not leaking water through the valve… the pressure loss is within 2 hours from 1.5 bar to 0.
Any pointers would be greatly appreciated!