New Balance 1400 Treadmill Logo
Anonymous Posted on Dec 30, 2010

I have a New Balance 1400 treadmill (manufactured by FitnessQuest) that won't stay powered up. Turning on from the main power switch, I hear a beep and a relay activate on the lower board, the console screen lights up, shows the initialization screen, gets to normal treadmill screen, but then goes dim. The console power button doesn't work to turn the machine on. Per a customer service rep suggestion, I checked the lower board ceramic fuse, which had continuity, and the "reset" switch near the main power switch. I also verified that the safety key switch was working. Thinking it was the power button, I opened it up and tried to short out the switch contacts but it didn't work. I also didn't see any overheated/melted/burned components or blown capacitors on either the lower motor circuit board or the upper console circuit board. I hate to throw this thing away, but it may be too expensive to repair. Can anyone suggest something else to check?

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  • Anonymous Jan 02, 2011

    The board stays on just a second or so once the primary treadmill display comes up. But it's consistent and always goes dark at the same point. This lead me to believe the upper circuit board was the issue. It's clear I'm getting power to the upper board since it lights up, but it appears to be failing some initialization routine and turning itself off.



    I have remove the upper board and have identified a custom microcontroller chip that may be the problem. There is a 12V power input on this board and allows me to reproduce the problem without being connected to the lower board harness. I suspect this microcontroller is somehow corrupted.


    I'm going to try to get this chip from FitnessQuest. Any other suggestions?

  • Anonymous Jan 02, 2011

    Here's a video of what the console displays when the main power switch is flipped:



    http://www.youtube.com/watch?v=rk1lwUxZd...



    None of the console buttons work after the screen goes dim.

  • Anonymous Jan 07, 2011

    I've isolated the problem to the upper console circuit board. Does anyone know what component on this board is the most likely to fail so I can check it?

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    Vincent G

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    • Posted on Jan 08, 2011
    Vincent G
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    The only weak spot on the main controller board is the small rechargeable battery or a lithium button cell.
    The memory battery is to keep the parameter information.
    When the battery is damaged the liquid (electrolytic) drips downward on to other electronic items.
    Any items under the "drip" pathway will need to be inspected and clean.
    The battery can be on the front or rear on the main board,

    Spend some time to locate this battery,
    A simple $12 item can stop the unit from operating!

    Please email me the part number or spec, info on the battery on reply.

    raj somaiya

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    • Posted on Jan 02, 2011
    raj somaiya
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    As the lights comes up,this indicates the upper board is receiving power.You are correct.But it itself turns off after few seconds,This indicates there is short in the upper board circuit.As you mentioned that micro chip in the upper board is got corrupted and this is getting short and causing the problem.In this case the micro chip has to be replaced.If its available in spare,in other case the board itself has to be replaced.Because some micro chips are not available.It directly comes with board.If that is the case,then you will have to go with board replacement.But still you try to get the micro chip part from the FitnessQuest.But if this part is not available,then you can try it at local electronic appliance parts store.Or at online part store sites like:-- www.radioshack.com .But if this part is not available,then you will have to replace the board.-------------Keep updated.Thanks.Helpmech.

    • raj somaiya Jan 07, 2011

      The small resistors and IC capacitors fails or get loose on the board mostly.But there are few capacitors also they can get bulged up from top and get leaked.But to confirm the fault you need to check the circuit track with meter.Where there is no continuity in between the track,that means there is short.So the component on that circuit part are to be checked.---------------- This should help.Thanks.Helpmech.

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    Hello,

    How long does the treadmill stay on before shutting down?

    If you need further help, I’m available over the phone at https://www.6ya.com/expert/matt_8dbc24bf722649ac

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