potterton ep3000

[jeepman]

can anyone help went to turn the heating on and on the control panel there is nothing showing got a number 13 but cant get anything to work
the power went off here a while back and have read it might be the backup battery that needs replacing or is there some kind of reset button inside the box.
also what kind of battery is in there i have not taken it apart yet
any help would be greatful

 

[bengasman]

Horrid things. Swap it for a honeywell st9400c if you can't get it to work easily; ep series are not worth spending money on.

 

[ksobier]

I have Potterton EP3000 and want to swap for Honeywell ST9400C. Is it just swap like for like or are there any 'nasty' surprises. I just swapped old thermostat to new digital one and it took me few hours and 2 fuses before I found out that you do not connect 'N' cable anymore. Do I need more fuses to replace controller?