baxi combi 80 Eco boiler HELP

[lycanthrope]

Hi guys
i hope you can help me, my boiler one day just went off no hot water or heating, and the water preassure had gone down to zero

i tried re preasurizing it to 1.5 preassure and tried to reset
but nope still not working, by the morning the preassure has again gone down to zero cant see any leaks but the outside overflow is dripping not pouring out
any ideas that can help me
thansk guys
dave

 

[Agile]

Well you can see the leak from the PRV vent pipe so clearly its losing pressure.

The PRV needs replacing or possibly cleaning.

There are probably other faults like the expansion vessel.

The boiler may well have overheated as a result of being operated with no water pressure.

Tony

 

[lycanthrope]

thanks for the info i had a feeling it might be the preassure release valve but wasn't sure
thanks again
dave