My Life Fitness T3 Treadmill has a problem of shutting down all the time in the middle of a workout. The problem seems to occur most when the speed is above 4 mph. The get it going again, i unplug it from the wall outlet and then plug it in again. It then works for about 10 minutes then shuts down again. Help !

Howard

• 115 Answers
• Posted on May 01, 2009

SOURCE: 9100 life fitness treadmill

Sounds like you need a new lower board replacement. You can get that for that treadmill by call lifefitness or sportsmith.com Please rate me good

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SOURCE: Life Fitness T3 treadmill won't turn on. Power

Could be. If you had to take it apart, I would definately check the wire harness connection. Also if there are bolts that were removed, check to make sure none of those pinched the harness when reassembling.

SOURCE: error 1 message on older life fitness t3 treadmill

Error 1 - Start up error. This is caused because the belt was commanded to move and the opto (speed sensor on the motor) has not seen any movement or the belts movement was interrupted prior to it reaching its commanded speed. To fix Verify opto operation in Diagnostics, Motor Test
Mode, Section 2. Verify DC voltage at connector P6 pins 1 and 2. Verify that LED 4 on the Motor Controller flashes as the motor moves. Let me know if you need any more help. Fitness Fix-It

SOURCE: FET Error

FET error is caused by a short in the driver transistor on the motor controller. Unfortunately, the fix for this is to replace the motor controller.

SOURCE: Fet error message

The FET error message is caused by the driver transistor on the motor controller has shorted out. Unfortunately, the fix is replacing the motor controller.