Hi all,
For those suffering from similar problems I would suggest disconnecting all the cables from the PCB and reconnect them again.
It appears that over a period of time the contacts tend to get slightly corroded and therefore the contacts are week. Reconnecting them again makes a firmer...
Hi all,
With the heating in off position and all hot water taps in the closed position, indicator lights 1 and 4 are on.
When any of the hot water taps are opened only lights 1 and 2 are on.
This indicates that the problem is not the flowmeter but either the sensor or another problem...
Please help.
I have a Ferroli combi boiler model Optima 801 and have an intermittant fault on the hot water side.
When running the hot water tap or having a shower the hot water regularly goes cold and I have to switch the heating on and leave it for a few minutes before the water gets hot...