ProForm 680 LT - User Manual

Questions and Answers

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Brianna ScottJul 30, 2025
How to recalibrate incline on ProForm 680 LT?
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  gcollinsJul 30, 2025
  To recalibrate the incline system on your ProForm Treadmill, insert the key into the console and press one of the incline buttons. While the incline is changing, remove the key. After a few seconds, re-insert the key. The treadmill will automatically rise to the maximum incline level and then return to the minimum level.
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jessicaandrewsAug 3, 2025
What to do if my ProForm 680 LT Treadmill power turns off during use?
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  bcunninghamAug 3, 2025
  If your ProForm Treadmill's power turns off during use, try the following: 1. Check the reset/off circuit breaker. If tripped, wait five minutes, then press the switch back in. 2. Ensure the power cord is securely plugged in. If it is, unplug it, wait five minutes, and plug it back in. 3. Remove and reinsert the key from the console. If the treadmill still won't run, further assistance information can be found on the front cover of the manual.
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Mark RasmussenAug 7, 2025
How to fix ProForm Treadmill that does not turn on?
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  Tara OlsonAug 7, 2025
  To troubleshoot why your ProForm Treadmill won't turn on: 1. Ensure the power cord is plugged into a surge suppressor and the surge suppressor is plugged into a properly grounded outlet. Use only a single-outlet surge suppressor that meets the specifications described on page 13. Note that the treadmill is not compatible with GFCI-equipped outlets. 2. After plugging in the power cord, make sure the key is inserted into the console. 3. Check the reset/off circuit breaker located on the treadmill frame near the power cord. If the switch protrudes, the circuit breaker has tripped. To reset it, wait five minutes and then press the switch back in.
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Ashley MooreAug 12, 2025
What to do if the displays of the ProForm Treadmill console do not function properly?
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  John ReyesAug 12, 2025
  To resolve console display issues on your ProForm Treadmill, remove the key and unplug the power cord. Carefully tip the uprights down. Check for three #8 x 2" screws in the bottom of the belly pan; if present, remove them. Locate the reed switch and the magnet on the left side of the pulley. Turn the pulley until the magnet aligns with the reed switch, ensuring a gap of about 1/8 inch (3 mm). If needed, loosen the 3/4" screw and adjust the reed's position. Reattach the hood with the #8 x 3/4" screws if necessary. Run the treadmill for a few minutes to check for a correct speed reading.
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sydneyjohnsonAug 20, 2025
Why does the walking belt on my ProForm 680 LT Treadmill slow down when I walk on it?
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  estokesAug 20, 2025
  If the walking belt slows down when you walk on your ProForm Treadmill: * Ensure you are using a single-outlet surge suppressor that meets the specifications described on page 13 of the manual. * If the walking belt is overtightened, it can decrease performance and damage the belt. To correct this, remove the key and unplug the power cord. Use the hex key to turn both idler roller bolts counterclockwise, 1/4 of a turn. When properly tightened, you should be able to lift each edge of the belt 2 to 3 inches off the platform. Keep the belt centered. Plug the power cord back in, insert the key, and run the treadmill for a few minutes. Repeat until the belt is properly tightened. If the belt continues to slow down, refer to the front cover of this manual.
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Eric MillerAug 25, 2025
Why do the console displays remain lit on my ProForm Treadmill when I remove the key?
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  beardalexandraAug 26, 2025
  The console on your ProForm Treadmill might be in display demo mode, which is designed for store displays. To turn off the demo mode, hold down the Stop button for a few seconds. If the displays are still lit, refer to THE INFORMATION MODE on page 19 to turn off the demo mode.
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Mark WilliamsNov 15, 2025
Why is the walking belt on my ProForm Treadmill off-center or slipping?
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  Kathleen TerrellNov 15, 2025
  If your ProForm Treadmill's walking belt is off-center, first remove the key and unplug the power cord. If the belt has shifted to the left, use the hex key to turn the left idler roller bolt clockwise 1/2 of a turn. If it has shifted to the right, turn the bolt counterclockwise 1/2 of a turn. Avoid overtightening the belt. Then, plug the power cord back in, insert the key, and run the treadmill for a few minutes. Repeat this process until the walking belt is centered. If the walking belt slips when walked on, first remove the key and unplug the power cord. Using the hex key, turn both idler roller bolts clockwise, 1/4 of a turn. When the walking belt is correctly tightened, you should be able to lift each edge of the walking belt 2 to 3 inches off the walking platform. Keep the walking be...