Precor 9.25i treadmill will not turn on at on/off switch. It throws a spark then immediatly turns off

If you have checked the safety switch on your Precor 9.45 treadmill and everything seems to be intact, and the "reset safety switch" message still won't go away, it's possible that the switch itself is faulty or the console is not receiving the signal from the switch.
You can try cleaning the switch and the area around it, and also check the wires that connect the switch to the console to make sure they are not damaged. If the switch or wires appear to be damaged, they may need to be replaced.
If cleaning and checking the switch and wires doesn't resolve the issue, it's recommended that you contact the manufacturer or a qualified repair technician to further diagnose and fix the problem. They may be able to provide additional troubleshooting steps or suggest other possible solutions.

Turn off you machine always, also disconnect the treadmill remove the cover and clean the motor fan and the motor with air cans.

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.
The following link will take you to our tech support page that contains some tips and videos on how to maintain your treadmill:


How to Lubricate Treadmill Using Liquid Lube Video

How long have you let it run for after turning it back on ? Some treadmills have a re calibration test built in and will incline to the max and work its way down. During this time you should simply walk away and not touch anything as it trys to calibrate its self. If not i will need more information on it

SEE THIS video: and fix it. Test the outlet wall with a desk lamp if turn On the outlet is o.k proceed.
God bless you

I have a ProLife treadmill with a breaker on it, the fuse may have blown it. You may try that, It would be next to the switch by the front of the the power cord. The front on the pic of this website, near the left bottom of cord or switch.

1) Reset the c.breaker from your house
2) See the c.breaker or blown fuse in your treadmill see the block diagram +c. diagram
3) Try again, and proof.
4) Test the main switch from treadmill, and replace if necessary for OPEn, see the diagram how to do it.
God bless you

Der Sir;
The power switch is failure , you must Change the switch. You must be shure the some wires is Not loose, otherwise the wires will be touching the carcase causing the spark inside. Retight the wires or solder .You must inspect the main motor board and all the element around . If someone is burned or other wires is touching the carcasing producing the spaprk.
sincerely. God bless you.
ernesto cuadramanagua, nicaragua c.a.

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.

The switch is also a circuit breaker it tells me that their is a good chance your Motor Control Board is shorted and will need to replaced or can be rebuilt. Call National Gym Supply @ 800-496-7278 and ask for pricing for new or repair.