True Fitness 455 Pediatric Treadmill User Manual


 
Symptom Probable Cause Corrective Action Recommended Tools
ELEVATION
NOT
FUNCTIONAL
( E1 ERROR)
Improper grounding
/ Calibration
(May
cause unit to
drift up & down
without command)
Unit is stuck at full
incline
Defective Start
Capacitor
Defective PWM
Test 110VAC outlet for proper
grounding
If unit has not been calibrated –
calibrate
Ensure that incline cables are secure on
PWM
--------
Verify the lower limit switch is properly
connected to the PWM
Remove the LLS wire from the PWM
and short the two posts of the connector
together with an alligator clip. Cycle the
power. If the treadmill lowers itself
then replace the lower limit switch.
Perform Incline potentiometer
calibration procedure (page 20)
If incline nut is stripped- replace incline
nut
--------
Do Up/Down command LED’s light?
If No- skip to defective PWM section.
If yes- does motor hum with no
movement?
If yes- check the leads to the capacitor
for breaks, if no breaks- replace
capacitor.
If No- replace PWM.
--------
If no Up/Down LED’s light check
continuity on data cables.
If cables are good- replace Upper Panel.
If cables bad- Replace data cables.
Multi-meter
Alligator clip
Note:
All trouble
shooting should
be performed in
calibration
mode.
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