In message , lsargent
writes

Hi,
I'm having an odd problem with my boiler: we had a powercut this
morning when the central heating and water heating settings were both
engaged, and since the power's been reconnected, neither setting works.
I have a Potterton EP2001 programmer, and I've tried resetting it using
the switches on the back but to no avail. The battery works fine since
the display still worked with the power off. The pilot light is on, but
when I press the 'central heating on' button the programmer clicks on
and I hear what I think is a rush of gas into the system, but the pilot
light is not igniting it.
Any help would be brilliant! Thanks in advance, Luke.

Disconnect the power and the battery

give it a couple of seconds and try again

--
geoff