Do I Need A Lump Hammer For A Potterton EP200
the_constructor
programmer.
Every so often, the display goes blank and with a sharp tap of the finger on
the unit casing it returns but he has to reset the time.
Is there a battery in this unit and if so:
a.. How do I get into the unit without using a lump hammer.
b.. If I have to replace the timer for him, is there a wiring diagram inside
the EP2000 so that I can marry the wiring upto a new controller.
Regards,
Jim
Dave Osborne
Use a screwdriver in the notch in the centre of the long side at the
bottom. The unit hinges up at the top and comes completely off the
backplate.
There is a rechargeable NiCd/Nimh pack which you may find a replacement
for. GIYF.
There is a wiring diagram, yes. Very standard arrangement.
Prolly better to buy a new controller.
Dave Plowman (News)
the_constructor <the_con...@freeukisp.co.uk> wrote:
> A friend keeps moaning about his Potterton EP2000 central heating
> programmer.
> Every so often, the display goes blank and with a sharp tap of the
> finger on the unit casing it returns but he has to reset the time.
> Is there a battery in this unit and if so:
The battery would only come into play when the mains failed or the unit
was totally powered down - not how these units are normally wired.
More likely is a dry joint somewhere if tapping it makes things work
again. But unless skilled at fault finding such things, probably easier to
just replace it.
> a.. How do I get into the unit without using a lump hammer.
If no obvious fixing screws there's usually a latch you push with a
screwdriver which allows it to hinge away and off. Look for a slot or
slots in the bottom.
> b.. If I have to replace the timer for him, is there a wiring diagram
> inside the EP2000 so that I can marry the wiring upto a new controller.
There's really not usually much to these things - a line and neutral feed,
and switched outputs for heating and hot water. But my old one (not a
Potterton) did have a basic wiring diagram inside. But I'd guess a bit of
Googling would find full installation instructions for most makes.
--
*Never underestimate the power of stupid people in large groups
Dave Plowman da...@davenoise.co.uk London SW
To e-mail, change noise into sound.
Vortex7
Once you get it open the battery needs replacing. It's probably
soldered in.
You can get them from http://www.maplin.co.uk/Module.aspx?ModuleNo=30958
From memory it's the BN22Y.
I have an old EP3000 in the Garage (EP2000 with 7 day timer) which has
had the battery replaced and will happily send you for a consideration
equivalent to a few beers plus postage.