Owner`s manual

2008 AFG Service Seminar [rev 1.3] | 55
Section Three | Troubleshooting
Treadmill Troubleshooting
>> Erratic Speed Continued
Symptom Possible Cause Test Procedure Repair
Erratic speeds -
Running belt speed is
not stable. (Continued)
Inadequate lubrication on
deck and running belt.
-Place hand underneath
running belt and feel for
adequate silicone
application. Reference
Maintenance p17.
Apply silicone.
Failed motor control
board (MCB).
Replace MCB.
Erratic Speeds-belt
speed increases without
command, but shows
change on display and
beeps.
In a program. -Remove safety key,
then replace.
-Start in P1 and see if
reoccurs.
Stuck button. Reference membrane
keypad and overlay
troubleshooting p51.
Failed upper board. Replace UCB.