9 hardware – JLG 1230ES Operator Manual User Manual
Page 92
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SECTION 6 - GENERAL SPECIFICATIONS AND OPERATOR MAINTENANCE
6-28
– JLG Lift –
3121221
9950
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99143
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99149
POWER MODULE FAILURE - INTERNAL
ERROR
A problem has been detected with the
power module.
Cycle machine power on /off a few times if this doesn’t clear the DTC,
refer problem to a qualified JLG mechanic.
9-9 Hardware
DTC
FAULT MESSAGE
DESCRIPTION
CHECK
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