Problem with my LP241 controller

[pstones578]

For some reason I can only turn the CH on with the HW too but I can turn the HW on without the CH. I have two friends on the same estate as me who can turn the CH or HW totally independant of each other but then I know someone else who lives on a different estate as us who cannot. Can anyone please shed some light on this. I am guessing that the controller is as old as the house, 6 years.

 

[ollski]

There are little black jumpers on the back of the clock to set different options but I wonder why yours has been set that way. Perhaps you have a different setup to others on your estate?

 

[pstones578]

Their setup looks the same as ours. Could these jumpers be accidentally changed when the control unit was installed?

 

[gas4you]

Sounds like the programmer is set for gravity hot water whereas it should be fully pumped. Check MI's for correct placement of the jumpers.

 

[pstones578]

I had a plumber mention to me that the system was fully pumped as far as he could tell. Can anyone tell me if I was to change the settings on the control panel so it operates as if the system was fully pumped and I was wrong what would the impact be if any, basically could I break anything by 'having a mess'?

 

[gas4you]

You won't break anything, you just won't get independent control of the ch and dhw.