I think it's this BTW:
10) Relay failure. The Powermax runs a pump while the burners are alight to prevent stratification in the heatstore. If the pump stops running, stratification occurs and the boiler overheat thermostat trips, turning the boiler OFF. A visiting technician will often spot...
Hi
First post so please go easy! Checked the stickies and have a fair idea what's gone wrong but after some advice and recommendation of a local independent who can help.
So boiler stop lighting around 10 days ago, got a guy out who was very helpful but didn't know the Range Powermax too...