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Thread: Honeywell Programmer problem

  1. #1
    Automated Home Lurker
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    Default Honeywell Programmer problem

    Hello

    I have a Honeywell st712 heating system programmer and it keeps cutting out so I have to keep pressing the reset button to get it to work again. My Potterton Suprima boiler seems to be working fine when the programmer is on. I'm not sure if I should just fit a new programmer or if there maybe something else that's causing this problem.

    Any advise??

    Thanks
    Ray

  2. #2
    Moderator sunbeam's Avatar
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    do you have to press the reset button on the boiler?

    if so it's the circuit board, your as well getting potterton round to do it,

    about 250.00 + vat.

    i can't say as i've ever known a reset button on a clock,

  3. #3
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    No, it's not the reset button on the boiler, it's the reset button on the actual clock programmer Honeywell ST712.

    The programmer turns itself off after about 15 - 30 mins and I have to press the reset button and set the clock and re-program again.

  4. #4
    Moderator sunbeam's Avatar
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    sorry Ray,

    if the central heating and hot water work ok when the programmer has tripped then it's new programmer time,

    if the central heating and hot water don't then it could be something else.

  5. #5
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    Thanks for the advice Sunbeam,

    I installed a new programmer and it's done the trick! yippie!

    Honeywell don't make the ST712 model anymore so I got the ST6400C model off an eBay shop for 29. It's actually a better model with more functionality and it fits the ST712 backplate so there was no messy re-wiring to do!

    Cheers
    Ray

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