Question about Precor 933 Premium Series Treadmill

1 Answer

Circuit breaker trips

Anytime my 9.33M (made circa 2004) accelerates too quickly the power trips off, for example if I'm walking at 3.5 and hold the speed up to 6.0, the acceleration curve sucks the amps and trips the power. The same happens if it's at a steady state of 7.0 or more and I get on it, like my weight adds to the amperage load and then that trips it. Then I have to manually turn the floor level power switch on again. I figure it's either a power supply breaker or a digital board breaker, but I won't know by visual inspection. Because it functions when I flip it back on I don't think it's a blown fuse, for example. But it makes the machine almost useless. BTW, it worked fine up until about the past year. Thanks.

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  • Precor Master
  • 914 Answers

When a running belt has excessive wear, it creates a lot of friction which causes the drive motor to work harder. When the drive motor works harder it will start overheating. If the belt is not lubricated periodically, it will ruin the deck, the drive motor, and cause other electrical problems such as tripping the breaker [after a while, the circuit breaker on the treadmill will need to be replaced.
It is suggested to lubricate the belt every month. At this point, you may need to replace both your deck and your running belt.

With your model and serial number, you can visit our website and view the products we have available for your particular machine.
http://www.sportsmith.net/productsearch.aspx?dsNav=N:11884&sc=product

Posted on Jan 26, 2015

5 Suggested Answers

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Posted on Jan 02, 2017

  • 42 Answers

SOURCE: treadmill will run for about

HI, are you using an extention wire, if you are then please unroll the whole wire, another thing is you can try to put a higher amp in the plug. if after this you are still having the same problem then there is something wrong in the circuit pannel.

Posted on Nov 16, 2010

  • 42 Answers

SOURCE: The circuit breaker trips when i get over about

hi, firstly if you are using a extention wire unroll the whole thing, and putting a higher amp volt in the plug. this should help

Posted on Nov 21, 2010

  • 1 Answer

SOURCE: After walking for 10 minutes or so, or even sooner

Check your Amps on the circuit that is being tripped. The treadmill needs 15 Amps to run. If you have a 15 Amp circuit that is running the treadmill and other electronics (or lights), the circuit will trip. You may need to replace the circuit with more Amps.

Posted on Mar 03, 2011

ercupa190
  • 12223 Answers

SOURCE: My precor 956i sets the reset button off after 20 mins of use. It is on its own 20 amp circit.Sometimes it shuts off sooner

You have mixed problems: mechanical-electical-electronics
I am giving a combo for solutions Watch the videos-tips for mechanical adjustments firts:
http://www.youtube.com/watch?NR=1&v=USSgbsZbDLQ
http://www.youtube.com/watch?v=hKbAqvuOBS0&feature=related
http://www.youtube.com/watch?NR=1&v=KiEZDNe0F8Q
http://www.youtube.com/watch?v=wjrVjYe2LYQ&feature=related
http://www.youtube.com/watch?v=CuMjcPLYehw&feature=related
http://www.youtube.com/watch?v=yX_0vRPdMfU&feature=related
http://www.youtube.com/watch?v=zXeHMWTcLUY&feature=related
http://www.youtube.com/watch?v=dxpOOPetVLo
If the problem persist, go to the 2nd phase:

http://www.youtube.com/watch?v=qgb2TY3WCkg&feature=related
http://www.youtube.com/watch?v=-oeXTKqWECw&feature=related
http://www.youtube.com/watch?v=GPI6dFJCUA4
http://www.youtube.com/watch?v=bF3OyQ3HwfU&feature=related
http://www.fixya.com/support/r10724803-measure_voltage_in_transforme_fitness
http://www.fixya.com/support/r10786838-test_procedure_dc_motor

http://www.youtube.com/watch?v=23ZgWaVEQjA
After this adjustments, if the problem persist you will be Strong conclusion: 1) Transformer Faulty, 2) Speed SENSOR 3) Main Motor 4) PController Motor Board, Since PCB controls 90-95% functions of the treadmills. sincerely.

Posted on Nov 21, 2011

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