How do I change the preset timings EP3000 electric timer?
I set the timings to suit.There is no problem & my water is heated twice a day for about one & a half hours. However if there is an electricity cut..the timer reverts to preset timings..two lotrs of 6 hours !!
how can I alter these preset settings ? My boiler is a Potterton My timing system is an EP 3000.