what does error code 3 mean on a tx 2.5 sportcraft?

TX 400 sportcraft. I had the same problem it is run for about 3 or 4 second and stop with error code 3 in my case one of the magnet wasn’t there. Take off the cover its 4 screws. 1 on each side and 2 in the front. on the left hand side there is a plastic wheel that is on the bar that rotates the belt. on the out side there are two round magnet attached to the plastic wheel one of them wasn’t there I get the round magnet from dollar store and glue it is work fine now

Ash
January 2016

I have a Sportcraft TX455 with same error code at 7or 8 seconds.
I removed the cover and found the sensor wheel cracked but still turning with the roller. Aligned the sensor wheel so it wobbled less, blew out some dust bunnies, and aligned the sensor itself a little. It's working so far. (One day and I've started it and run past a minute without error a dozen times)

Glenn Hale
September 2015

don't know but mine also is doing this. I will pull cover and see if that is the problem. thanks

lois
February 2015

I had the "3" error code, pulled the cover and sure enough the speed sensor wheel was cracked. It wasn't cracked in half just on one spot so I lined everything back up and it's useable as is for now. I tried to find a replacement wheel online but no luck. If your wheel is cracked your best bet is to try the 2 part epoxy glue.

Rob B.
January 2012

Hey I have the same problem that occurs almost every year around the same time. I always have to get a technician to fix it but this time I want to fix it myself. What exactly is the problem ?

jobetht
April 2011

43

fgt
November 2010

error code 3 mean on a tx 5.0 sportcraft. I now how to fix it. I just did. And I didn't pay to find out from the internet. wbten70@yahoo.com. Unplug it. Take off the cover its 4 screws. 1 on each side and 2 in the front. On the right hand side there is a plastic wheel that is on the bar that rotates the belt. Its got spaces on the end of the wheel. Its passes between a mounted sensor that has a black, red, and white wire coming from it.as the spaces in the wheel flicker thru the middle of the sensor, the computer tells the speed rate. Thats how it knows how fast it goes. Mine was cracked in half and out of the sensor. The tx would fire up and shut down and blink 3 within 7 seconds of running. All I did was buy that glue that has 2 tubes on it like a syringe. Get a index card and fold it a few time to make a paper stick. Next make sure the wheel is ready as possible to be held together first. Then you bust off the cap to the glue squirt it on a piece of paper and mix the 2 glues together, stirring it. You only have a little time cuz the glue reacts to itself and starts to harden fast. Paint the glue on the bar, thick and quickly hold the plastic wheel together on it. Then just gob or let the glue drip where it is cracked in half. Key point! While you are holding the wheel together make sure its lined up with the sensor as evenly in the middle of it as possible. When the glue starts to hold, roll the bar with your hand to make sure the wheel is spinning freely thru (in between) the sensor. If it wiggles like its crooked its ok as long as it doesn't actually scrape or drag on the sensor. Put the cover back on and try not to step on the cover or on that side of the cover. The cover flexes and thats how I think mine broke. I got kids that think its a jungle gym. If the wheel is on and ok, it could also possibly be that the sensor is dirty. p.s. while you got the cover off sweep out the dust bunnies

WildBill
October 2008

Chances are E3 is a speed error code.
Have you ever cleaned the inside of your treadmill. If you have
never cleaned the inside you may have a dirty speed sensor.
Clean that first.
I have a video on this to show you how.
"Maintaining Your Home Treadmill Revised"
http://www.mindbites.com/person/214-Mark
you can also e-mail me if this doesn't work
markepeterson@austin.rr.com

Mark Peterson
March 2008