Thermal Limit (Soa); Battery Supply - JLG 1230ES Operation And Safety Manual

4-2 Thermal Limit (SOA)

DTC FAULT MESSAGE
421 POWER MODULE TOO HOT - PLEASE
WAIT
422 DRIVING AT CUTBACK - POWER MOD-
ULE CURRENT LIMIT
423 LIFT UP AT CUTBACK - POWER MODULE
CURRENT LIMIT

4-4 Battery Supply

DTC FAULT MESSAGE
441 BATTERY VOLTAGE TOO LOW - SYSTEM
SHUTDOWN
442 BATTERY VOLTAGE TOO HIGH - SYSTEM
SHUTDOWN
443 LSS BATTERY VOLTAGE TOO HIGH
3121221
SECTION 6 - GENERAL SPECIFICATIONS AND OPERATOR MAINTENANCE
DESCRIPTION
The power module has reached thermal cut-
out.
The drive portion of the power module has
reached thermal limit.
The lift up portion of the power module has
reached thermal limit.
DESCRIPTION
A problem has been detected with the bat-
teries or power module.
A problem has been detected with the bat-
teries or power module.
A problem has been detected with the load
sense system.
– JLG Lift –
CHECK
• Power down and allow to cool.
• Do not operate in ambients over 140° F (60° C).
Refer problem to a qualified JLG mechanic.
Refer problem to a qualified JLG mechanic.
Refer problem to a qualified JLG mechanic.
CHECK
• Recharge batteries or check for damaged batteries.
• Check battery charger function.
Refer problem to a qualified JLG mechanic.
• May be due to improper battery charging or incorrect voltage batteries
being used.
Refer problem to a qualified JLG mechanic.
• May be due to improper battery charging or incorrect voltage batteries
being used.
Refer problem to a qualified JLG mechanic.
6-21