Cardiac Stress Treadmills Service Manual Troubleshooting 3-1
3
Troubleshooting
Diagnosis
The tables and flow charts in this chapter cover the following potential
problems.
Electrical Problems
•Power
• Cable connections
Electronic Problems
• AC Drive Module
•PCB
• Signals
Mechanical Problems
•Noise
• Vibration
•Grade
•Speed
• Belts
Use the tables and flow charts on the following pages to diagnose
problems. See Chapter 4 for repair and replacement procedures.
Tools
The following tools may be required:
• Phillips and flatblade screwdrivers
• ½-inch hex wrench
• Mechanical stethoscope
• Digital multi-meter
Warning! High voltage is present under the hood when the treadmill
is plugged into a power source; residual high voltage
remains for a few minutes after the power is removed. Turn
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