Why is he doing turbidity test for an ignition/gas valve fault
I know some think a powerflush is a panacea, but can it cure a pcb/gas valve/ignition fault?
Vaillant are on very dangerous ground here, reminds me of Ideal
I know some think a powerflush is a panacea, but can it cure a pcb/gas valve/ignition fault?
Vaillant are on very dangerous ground here, reminds me of Ideal