"Wdyw" wrote in message
...
How old is the programmer ?

I assume same age as the house 10years or so.



The only ones I can find a

Its an EP2001. Weekday/Weekend 2on/off





I think the best advice I can give you, would be for you to ask Potterton
for a user manual on the timer.

Request one from he

http://www.potterton.co.uk/after_sales/main.htm

Then find out how the timer works first before you go changing anything
else.


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