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Proform Treadmill 785 E suddenly stops during highs speed workout

My 785 E is about 5 years old, I took it with me from the US to Norway two years back and runs it through a 240 - 120 V converter capable of 750 W (3.25 Amp nominal). This has worked well until a few weeks back when the treadmill was used for interval training with rather high speed. A few times the treadmill inadvertently stopped functioning and had to be reset before starting again. I was wondering if the capability of the converter could be too low for the power needed on high speed? Or what could be the reason for this problem - which make the treadmill a rather risky place for interval. Kjell-Ove

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Use 2000W converter instead of 750W because you are using your treadmill on its full power on high speed. 750W converter is not capable of handling its full load resulting the machine malfunctioning. Your treadmill 785E have 2.25 CHP motor, 2.25 CHP is equal to 1677.824712W and 20-Amp minimum Ac outlet is required for your treadmill in order to function in full capacity. Download user's manual on: https://www.sportsmith.net/images/product_support/ProForm/PFTL785081%20-%20PROFORM%20I%20SERIES%20785%20E%20TREADMILL/PFTL78508.1-274823.pdf See Horse Power to Watts Converter on: http://www.rapidtables.com/convert/power/hp-to-watt.htm

Proform Treadmill 785 E suddenly stops during high - 785e specifications-dfydxumns33ohqc3bsmt22yf-2-0.jpg

Posted on Apr 17, 2017

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Posted on Jan 02, 2017

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SOURCE: Proform 515s treadmill motor won't start

If the colse buttons make a chirping noise when you push them the console should be Ok. If there is no chirping noise with the push it is a bad console. If everything but the speed works it will probably be your motor controller that is bad.

Posted on Apr 14, 2009

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SOURCE: I have a Proform 770 EKG Treadmill jerks and squeaks

The drive belt was loose. I tightened up the motor just a smidge using a crow bar. That solved the problem.

Posted on Dec 30, 2009

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SOURCE: The belt on my ProForm Crosstrainer treadmill stops while using i

Sometimes the tread needs to be lubricated. This was the case with ours. You can get a lubrication kit at ****'s Sporting Goods or other larger sport stores and it will instruct you on how to do it.

Posted on Jan 26, 2010

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SOURCE: treadmill belt runs very slow and stops when I get on

proform 625 belt slips cause

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maxtreadmill
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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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I have a proform 785..the problem is the speed and incline decreases all of a sudden like within a minute...i raised the speed to 4 and it dropped to 2 within 1 min and same thing with the incline it...


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Press the Stop and the Speed Up keys down while inserting the safety key. If you cannot get into calibration then upper console needs to be replaced.
Press the Stop key one time. The Time window should read EP:2P. Some newer models may also say FP, Pass, or the like. This means that it passes the EPROM test. At this point if it show 2F FF or Fail then upper console needs to be replaced.
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Press the Stop key once and remove the safety key.

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Manual Treadmills vs. Motorized Treadmills


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