OP
parin
The pump has been changed as has the fan so I'm not sure if it's that.
I also disconnected the thermostat so it is running all of the time as long as the boiler is on and it had the same result.
If it is on 3 I and I turn it up it takes around 10 mins to trip, and it takes the same time it it's done from a cold start.
I also disconnected the thermostat so it is running all of the time as long as the boiler is on and it had the same result.
If it is on 3 I and I turn it up it takes around 10 mins to trip, and it takes the same time it it's done from a cold start.