4
Life Fitness Model 4000 Treadmill
TROUBLESHOOTING GUIDE
Symptom: STRIDING BELT
Malfunction Probable Cause Corrective Action
Striding Belt will not move Insufficient power source
Faulty Control Board
Plug treadmill into power source with proper
electrical requirements. (See Operation
Manual)
Replace Control Board
Striding Belt hesitates
upon start up (or will not
begin to turn on new
machine)
High amount of friction
between Deck and Striding
Belt.
Start unit with no one on it at 3.5 mph and 5%
or greater incline. Step on to the Belt while it is
moving and walk for 4 to 5 minutes.
Maximum speed reduced Striding Belt, Deck Malfunction
• Deck laminate is worn
through
• Belt worn
Replace Striding Belt and Deck
Line Voltage too low Plug the Treadmill into a power source with the
proper electrical requirements.
Striding Belt slips Adjust Striding Belt Tension (See “How To...”)
Drive Motor Belt slipping See “How To...Remove and Replace the Drive
Motor Belt” for proper Drive Motor Belt
tensioning instructions.
Striding belt comes in
contact with End Caps Unit is not level Adjust rear leveling legs (See Operation
Manual)
Striding Belt needs to be re-
tensioned Adjust Striding Belt Tension (See “How To...”)
Missing rubber spacer Replace rubber spacer between Frame and
End Cap
End Cap(s) distorted Replace End Cap(s)
Striding Belt stretched or too
long Replace Deck and Striding Belt
For Assistance:
Call Life Fitness Customer Support Services
1-847-451-0036 or 1-800-351-3737