SYMPTOM
Treadmill is turned ON and speed control is inoperable (belt not moving).
1. Check for faults on display unit before moving onto step #2:
CODE
DESCRIPTION
A1
Motor Amplifier Fault
A2
Upper Board NV Ram Failure
A3
Upper Board PROM
A4
Upper Board RAM
A5
Upper Board Communication Failure RS-232
A6
Upper Board Communication Failure RS-422
A7
Lower Board PROM
A8
Lower Board RAM
A9
Not Used
b1
Lower Board Watchdog Failure
b2
Lower Board Watchdog Disabled
b3
Lower Board Controller Fault
b4
Hall No Speed
b5
Hall Over Speed
b6
Lower Board Loopback Comm Failure
b7
Upper Board Failure
b8
Not Used
b9
Not Used
E1
Grade Failure
P1
Deck Lubrication Maintenance
P2
Reverse Deck Maintenance
P3
Belt Replacement Maintenance
P4
Motor & Amp Cleaning
S1
Tach Overspeed
S2
Tach No Speed
2.
If no faults are displayed, check the following:
• Large blue capacitor should measure 170 VOL across terminals.
If OK, proceed to step 3.
6. TROUBLESHOOTING
— 23 —
TROUBLE-SHOOTING
Summary of Contents for 950-273
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