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STC-1000 wiring issues

Discussion in 'Fermenters' started by maxtar01, Mar 12, 2016.

 

  1. #1
    maxtar01

    New Member

    Posted Mar 12, 2016
    Hi All,

    I've wired my 220VAC STC-1000 up according to this diagram:
    [​IMG]

    However, when I tested with a fan and a lamp, I saw that no power was going to either the Heat or Cool outlets (as well as accounting for the 3 minute delay).
    Testing with the multi-meter shows that power is going into ports 5 and 7, but nothing is coming out of 6 and 8 when the unit is heating or cooling.

    Any help at all would be appreciated.
     
  2. #2
    day_trippr

    We live in interesting times...

    Posted Mar 12, 2016
    Not sure if this is germain to an operating problem, but I'm pretty sure the Heating relay is on pins 5-6 and the Cooling relay is on 7-8...

    Cheers!
     
  3. #3
    maxtar01

    New Member

    Posted Mar 12, 2016
    The diagram is the wrong way round, but in essence should work correctly. The issue is the same irregardless.
     
  4. #4
    day_trippr

    We live in interesting times...

    Posted Mar 12, 2016
    Regardless.

    I agree, even if you had the loads switched, if you have a rational configuration set into the unit, something ought to happen eventually - even if it's the wrong thing.

    About all I could advise is to double check your neutral wiring...

    Cheers!
     
  5. #5
    maxtar01

    New Member

    Posted Mar 12, 2016
    Checked the neutral wiring in the Heat and Cool outlets, as well as the neutral on the STC itself with a multi-meter, all appear to be working correctly.
     
  6. #6
    day_trippr

    We live in interesting times...

    Posted Mar 12, 2016
    "It's Dead, Jim".

    Sounds like you've done all the rational debugging.
    Sorry.
    Hopefully the replacement will be A-OK...

    Cheers!
     
  7. #7
    raouliii

    Well-Known Member

    Posted Mar 12, 2016
    Are you sure that you wired per the diagram? A photo may shed some light on the problem.
     
  8. #8
    maxtar01

    New Member

    Posted Mar 12, 2016
    Apologies for the confusing layout:

    [​IMG]

    The power cord is laid out as:
    Brown: Phase
    Blue: Neutral
    Green/Yellow: Earth

    I've followed the same pattern in my wiring, but red here is Earth as I didn't have any G/Y wiring.
     
  9. #9
    black_petal

    New Member

    Posted Mar 12, 2016
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