Ferroli Optima 1001
Heating works fine on 'timed' and manual.
But when you turn a hot water tap on, the boiler is switching on and off all the time.
Any ideas?
many thanks...
Heating works fine on 'timed' and manual.
But when you turn a hot water tap on, the boiler is switching on and off all the time.
Any ideas?
many thanks...