Potterton EP2002 Programmer - Intermittent fault

Discussion in 'UK DIY' started by Fresh_Air_Rider@Hotmail.com, Aug 21, 2006.

  1. Guest

    Hi all

    I have a Potterton EP2002 Programmer, for controlling my central
    heating system, which has suddenly started to behave erratically. By
    that, I mean that it sometimes works continuously for perhaps tweleve
    hours and then stop working and the LCD goes blank. Other times, it
    runs for a few minutes and then stops before running again for another
    few minutes.

    I'm buy no means an expert, but could anyone please reassure me that if
    I ordered a replacement programmer and attached it to the existing back
    plate, it would resolve the problem ?

    I'm just guessing that it might be a capacitor or something within the
    programmer that has failed.

    There have been a lot of thunderstorms in my area lately and I just
    wondered if that might be a contributory factor.

    Could it be something else such as the rechargable battery that needs
    replacing or even the backplate itself that is not providing a good
    connection ?

    I'd be very greatful if someone could please give me some advice on
    this one.

    Best regards
    David
     
    , Aug 21, 2006
    #1
    1. Advertisements

  2. raden Guest

    In message <>,
    writes
    >Hi all
    >
    >I have a Potterton EP2002 Programmer, for controlling my central
    >heating system, which has suddenly started to behave erratically.
    >
    >I'd be very greatful if someone could please give me some advice on
    >this one.
    >


    From your description, it sounds like it's fucked

    the control chain inside is literally controller - transistor - relay


    --
    geoff
     
    raden, Aug 28, 2006
    #2
    1. Advertisements

  3. In article <>,
    <> wrote:
    > I have a Potterton EP2002 Programmer, for controlling my central
    > heating system, which has suddenly started to behave erratically. By
    > that, I mean that it sometimes works continuously for perhaps tweleve
    > hours and then stop working and the LCD goes blank. Other times, it
    > runs for a few minutes and then stops before running again for another
    > few minutes.


    To try and identify the problem, does the clock still keep time when the
    display goes blank?

    > I'm buy no means an expert, but could anyone please reassure me that if
    > I ordered a replacement programmer and attached it to the existing back
    > plate, it would resolve the problem ?


    Almost certainly.

    > I'm just guessing that it might be a capacitor or something within the
    > programmer that has failed.


    > There have been a lot of thunderstorms in my area lately and I just
    > wondered if that might be a contributory factor.


    > Could it be something else such as the rechargable battery that needs
    > replacing or even the backplate itself that is not providing a good
    > connection ?


    The device will still work normally if the battery fails - except during a
    power cut.

    It would certainly be worth isolating the circuit, removing the programmer
    and checking the security of the wiring to terminals, and that it's
    getting a constant power supply - although the battery should keep it
    going if this was the fault, and of course it wouldn't operate the
    heating.

    But my guess would be a dry solder joint on the device PCB. It should be
    possible to fix this - if you're into electronics. But not economical to
    pay someone to do it.

    If you do have to replace it you might consider doing so with the 6002
    which has 7 day programming. Think it's the same price.

    --
    *A fool and his money can throw one hell of a party.

    Dave Plowman London SW
    To e-mail, change noise into sound.
     
    Dave Plowman (News), Aug 28, 2006
    #3
    1. Advertisements

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Similar Threads
  1. Graeme

    Potterton EP2002 Controller

    Graeme, Jan 4, 2005, in forum: UK DIY
    Replies:
    0
    Views:
    1,590
    Graeme
    Jan 4, 2005
  2. Dopey
    Replies:
    3
    Views:
    9,431
    Set Square
    Sep 17, 2005
  3. Replies:
    3
    Views:
    1,267
    raden
    Jan 14, 2006
  4. raden
    Replies:
    3
    Views:
    2,478
    Edward W. Thompson
    Nov 29, 2006
  5. Replies:
    1
    Views:
    702
    spwaite
    Jul 12, 2006
  6. Replies:
    10
    Views:
    964
    Chris AAA
    Sep 1, 2006
  7. Jamer
    Replies:
    3
    Views:
    1,910
    Jamer
    Jun 16, 2007
  8. Replies:
    2
    Views:
    4,618
    peterc
    Feb 23, 2011
Loading...