True Fitness 455 Pediatric manual Elevation Not Functional E1 Error, Pwm

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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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Support Services 800-883-8783

Mon-Fri 8:30am-5:00pm Central Time Zone

Fax: 636-272-7148

 

 

 

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Contents Treadmill Treadmill Preventative Maintenance Checklist Start Symptom Guide Error Error Messages Continue on next page… No Belt MovementCont’d Liquid silicone single use pack Treadbelt Stops During WorkoutHeart Rate Not Working Erratic Readings PWM Elevation Not Functional E1 ErrorSee E2 CALAll trouble shooting should be performed in calibration mode No Display Circuit Breaker Trips Calibration Procedures Diagnostics Test Procedures Grounded Outlet Test Treadmill Speed Sensor TestDrive Motor Test Incline Potentiometer Calibration Test Belt / Deck Wear Test 455 Wiring Diagram Parts List On / OFF Switch