I have a Precor 9.20 S that I purchased back in 1995. The machine has been running efficiently since that time! All of a sudden I get nothing when I turn it on. No lights, sound, nothing. I checked outlet which is fine. Any ideas? If you could let me know how I can get this serviced, I would greatly appreciate. Thank you. Lisa Seymour 7 Deer Run Court North Salem, NY 10560

Question edited for clarity, 'make model (what it is)'.
Question moved from Cars and Trucks category.

Service Manual

https://www.google.com/search?q=Precor+AMT+100i+loss+of+resistance

It is a very complex machine.
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Contact Precor direct. Details at the bottom of the page. It uses a non-standard method of resistance.

https://www.precor.com/en-ca/efx%C2%AE-546i-elliptical-fitness-crosstrainer%E2%84%A2

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If you really have a 'black dust' issue, your machine would be at least 7 years old - if it is less than 10 years, the parts would be under warranty, assuming you bought it new. One or both rollers and the walking belt would need to be replaced. You were advised to call Precor - did you? I am surprised the retailer did not offer any help - this seems like poor customer service.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/russell_1d1c35fa8a5a0be4

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

tighten the back bolts to check tension lift the sides of the w/belt in the middle . sides should be 2-3 inches high

http://www.fixya.com/support/t7928580-3_year_old_home

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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.

You may have to purchase the belt from a Precor dealer in you area, if you don't have one then call Precor directly @ 1-800-347-4404 and they will help you. Most of these part have not hit the secondary market yet and Precor pretty much call the shots.

Transmission solenoid needs replacement.