Mike - this has just happened to mine. Did you work out what to do?
Fiona
February 2009
the base on the programmer has a slot on the under side on the right, insert flat bladed screwdriver to relese tab and lift upwards.
if you had a power cut i suspect the surge killed the programmer sorry
amh
December 2008
I can answer this question...
Heating - Potterton Control Model EP2002. No power?
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