Potterton programmer malfunction?

by **bergerland** » Sun Apr 03, 2011 8:25 am

Hi,
I have a Potterton EP3002 programmer, about 10 years old.
I am finding that the Central Heating is switching on when I have set the progranmmer to HW only. The only way to stop CH switching on is to turn off each radiator valve.

Any advice please?

by **stoneyboy** » Sun Apr 03, 2011 4:56 pm

bergerland,
Most likely that you have a motorised valve in the system and this is stuck on CH - time for a search.
end

by **benbob** » Sun May 15, 2011 7:53 am

Ep timers are pants, could well be it is gone.
If it needs replacing, buy another brand like Honeywell or Danfoss.
Get a model that allows for totally separate times for ch and dhw.