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My t912 treadmill is getting power but not turning on. I switched the circuit board with another and it turned on briefly, then shut right down, there is no display. What is the problem?

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Posted on Jan 02, 2017

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SOURCE: treadmill powers up begins to turn belt then shuts down

Have you tried to calibrate the speed. If not you might want to try it and see if it will help you with your issue.

Posted on Apr 14, 2009

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SOURCE: my true 500hrc treeadmill has no power to display.


Posted on Mar 01, 2010

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SOURCE: Nordic Track treadmill trips GFI.

Have you lubricated the the running deck? The lack of lubrication can increase friction thus causing the GFI to trip. simple test start the treadmill do not walk on a see if the GFI is tripped in it does trip then lubricate, then if after lubricate it still the you have a worn belt and possibly damaged deck depending replacement price and on what you paid for the treadmill it may or may not be worth fixing.

Posted on May 20, 2010

  • 1 Answer

SOURCE: treadmill kph to mph

No need to take console apart, power up the treadmill, take the safety key out then hold down the start button and the incline down button at the same time then insert the safety key. You'll now be able to toggle between KPH and MPH by using start button

Posted on Jun 15, 2010

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SOURCE: My Proform XP 650e Treadmill starts and suddenly

This condition is when the treadmill goes to full speed as soon as you power up the treadmill. Typically when this occurs, it is an indication of a short circuit in the motor controller.

Posted on Jun 29, 2010

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When I turn on and select start, it powers down as it trips the house circuit. Why is this happening, it has never before?

Could be that there is a short in your wall outlet, you can try switching the treadmills power cord to a different outlet.

You always want to make sure that your treadmill is on a dedicated circuit.

You also might want to try and just reset the power switch, leaving it off for 5 minutes and switching it back.

It could also be that one of the electric components on the main board, for example like a capacitor is damaged which in turn is causing the unit to draw "too much" voltage into the machine.

If switching outlets does not do the trick, you can remove the main shroud and inspect that main board, check any wires for crimping and or any components that look damaged.

If not any, with the shroud off you can turn the machine on. Just check to see if the main control boards LED's come on.

You will most likely get LED's since you said it turns on, then off when you hit start.

If you find you need any further assistance, we would be happy to help you :) by chat at or by phone at 888-713-2880

We look forward to hearing from you!

Aug 16, 2015 | RTO Sole F80 Treadmill

1 Answer

Treadmills are shutting down after persons are running on machine. The power is tripping, shutting down. After break or machine is turn on it works again

Chances are the treadmill started by shutting off in the middle of a workout and has gradually gotten to the point that it will not run long, or turn on at all, in some cases. This is most likely caused from a worn deck and belt. If the belt and deck is not routinely waxed, it wears down and causes friction. This friction builds up heat which can fry your electronics. The machines circuit breaker shuts the machine down to protect the major electronic components. This protective measure, built in by the manufacturer, will only help for so long. After a few times of shutting down due to the heat, it actually does damage to the electronics. The result and correction usually ends up being a new deck, a new running belt, and in most cases that have gone on too long, the motor control board. I am attaching a link for the service manual for further information. Parts for Matrix T3 Treadmills T3x T3xi Belts Rollers Decks SPORTSMITH...

Aug 27, 2013 | Matrix T3x Treadmill Deck Treadbed Parts

1 Answer

Bowflex series 7 treadmill Calibration fail. Next indicated action?

It looks like the main circuit board is damaged and needs to be replaced unless there are separate modules in it.

Jan 22, 2013 | Bowflex Series 7 Treadmill Folding Pro...

1 Answer

Nautilus t912 Treadmill Breaker Pops

see the diagrams attached and you must test for to isolate the short.
the short can be a) power cord short b) outlet wall faulty with ground test and repiar c) ground to chassis. d) filter short e) power switch short f) coil or transformer faulty. and step on until you elminate the short USE the DVOM or VOM. g)motor h)board main
Before to do something RUN THE software calibration for diagnose, troubleshooting, and fix it.
God bless you

Jul 26, 2012 | Exercise & Fitness

1 Answer

I have a t912 treadmill display says,loss of do i fix this

Run the software calibration , for easy diagnose and troubleshooting, and fix it

God bless you

Jul 02, 2012 | Nautilus Deck, Treadmill, T912

1 Answer

Tread mill wont turn on. it was on then while in use the screen flashed on and off then treadmill shut down and has not turned back on. tried reset button then unpluging for a while but still does not turn...

Dear Sir:
Thank you by your problem, I will help you inmediately.

Make sure that the power cord is plugged into a surge suppressor, and that the surge suppressor
is plugged into a properly grounded outlet . Use only a single-outlet surge suppressor
that is UL 1449 listed as a transient voltage surge suppressor (TVSS). The surge suppressor
must have a UL suppressed voltage rating of 400 volts or less and a minimum surge dissipation
of 450 joules. The surge suppressor must be electrically rated for 120 volts AC and 15 amps.
Important: The treadmill is not compatible with GFCI-equipped outlets.

2)After the power cord has been plugged in, make sure that the key is fully inserted into the console.

3)Check the circuit breaker located on the treadmill
near the power cord. If the switch protrudes as
shown, the circuit breaker has tripped. To reset the
circuit breaker, wait for five minutes and then press
the switch back in.

4)Check the on/off switch located on the treadmill
near the power cord. The switch must be in the on

I hope you resolve this. Otherwise, try to reach me. Inmediately.



Sep 13, 2011 | Nordic Track NordicTrack Elite zi...

4 Answers

My Precor 9.35 treadmill keeps shutting off. At first I thought this was due to use or it getting overheated. But, today I turned it on several times and it would shut off as I was walking on it. The...

Is it on an extension cord? Take it off any extension cords and make sure it's on a dedicated 120v circuit. No other items on the circuit. Also, how old is it? Precor made a bunch of the 9.3x series from 2002-2005 with an aluminum tail roller that can cause problems. Check the back roller. Is is silver and non-magnetic? if that's the case, you have an aluminum roller and you need to contact precor. If you're the original owner of the machine, they should warranty the replacement of the parts, if not, you'll have to buy at the very least a running belt and new roller.

Jun 21, 2010 | Precor 935 Premium Series Treadmill

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