Unit Resets Randomly - Life Fitness 5500HR Service Manual

Life Fitness Model 5500HR Treadmill
TROUBLESHOOTING GUIDE
Symptom: Unit Resets Randomly
Malfunction

Unit resets randomly

4
Probable Cause
Insufficient power source.
Damaged line cord.
Line cord improperly seated in
socket.
Pinched display harness.
Loose connections at heatsink
control board and display.
Safety key not making proper
contact.
Faulty safety key switch
Corrective Action
q Plug treadmill into a dedicated 120V,
15 amp circuit.
Replace line cord.
q
q Inspect power connection at electrical
outlet and at machine for proper contact.
q Check all display connections.
q Verify cable from Display to handrail
cable is not crimped between (tray)
Control Panel and the handrail.
q Replaced damaged cable.
q Secure connections at heatsink control
board and display.
q Place safety key in proper position.
q Replace switch.
For Assistance Call:
Life Fitness Customer Support Services
1-847-451-0036 or 1-800-351-3737