Hi all
We have Grant boiler
It never bothered us before but i’m curious to know whether this is a fault or normal for Grant boiler central heating to stop when the hot tab is running?
Also when the hot tab is off then it takes CH 5-10 mins to come back on
Any suggestions much appreciated
Thanks
Have replaced plate to plate
Also non return valve
This sorted the pressure problem
However the ch is constantly run even when the thermostat is off
I haven’t touched the wiring at all and it worked fine before
expansion vessel is pre set to 1 bar.
I haven't tested the filling loop
and yes, the pressure continues to to rise when boiler isn't working.
sorry I don't understand the "plate to plate" bit, what do you mean by this??
Hi guys
Anyone familiar with Grant oil boiler?
The boiler is consistently overflowing and the water from overflowing is rusty
I have been told that the expansion vessel is dead
I have decided to open it today and the water is completely rusty as you can see
How do l know if it’s actually...
Thank you so much this worked, l had to link 25 to 26. Also switched CH button on the boiler to Timed.
Also managed to disconnect the switch old thermostat now l do have 2 extra cable core. I will replace it with 3 core cable.
Thanks everyone.
So l tried it
There is a link between 17 and 18 already
19 to 1 on hive
And 20 to 3
But the heating doesn’t come on
What am l doing wrong
Also removed 25 and 26 where it says ROOM STAT so assuming that is for the thermostat