JLG 1230ES Service And Maintenance Manual Download

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SECTION 5 - CONTROL COMPONENTS

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– JLG Lift –

5-23

cell and all connections are good, return the
charger for service.

[3 Flashes] - Charge Time-out

Indicates the battery failed to charge within the allowed
time. This could occur if the battery is of larger capacity
than the algorithm is intended for. In unusual cases it
could mean charger output is reduced due to high ambi-
ent temperature. It can also occur if the battery is dam-
aged, old, or in poor condition.

Check the battery for damage such as shorted
cells and insufficient water. Try the charger on a
good battery.

If the same fault occurs on a good battery, check
the connections on the battery and connection
to AC, and the AC voltage itself.

Confirm that the nominal battery pack voltage is
the same as the battery charger voltage.

This fault must be cleared manually by unplug-
ging the AC, waiting 30 seconds and reconnect-
ing the AC power.

If a charger displays this fault on a battery pack,
and the pack is of questionable status, reset the
charger by disconnecting AC for 30 seconds, and
then reconnect the AC to start a new charge
cycle. After a few charge cycles, this problem
could stop occurring as the pack "recovers."

[4 Flashes] - Check Battery

This fault indicates the battery pack could not be trickle
charged up to the minimum level required for the normal
charge cycle to be started.

Check that none of the battery pack connections
between modules are reversed or incorrectly
connected.

Check that one or more cells in the battery are
no shorted.

Confirm that the nominal battery pack voltage is
the same as the battery charger voltage.

Try the charger on a good battery.

If this fault occurs, the battery is likely in poor
condition. Try to recover the pack with a charger
that can charge the individual cells - such as an
automotive charger. Be sure to set this charger
to the appropriate voltage - 6V per 6V battery,
12V per 12V string/battery.

[5 Flashes] - Over Temperature

This fault indicates the charger has become too hot during
operation. Though not damaging to the charger, charge
time will be extended significantly.

This fault indication will not clear automatically,
but the charger will restart charging automati-
cally when the temperature drops. The fault indi-
cation must be cleared manually by unplugging
the AC, waiting 30 seconds and reconnecting
the AC power.

If possible, move the machine to a cooler loca-
tion.

Confirm that dirt or mud is not blocking the
cooling fins of the charger. Clean the charger.
Rinse the charger with a low pressure hose if
required. Do no use high pressure. Do not us a
pressure washer.

[6 Flashes] - Over Load/Over Temperature

This fault indicates that the batteries will not accept
charge current, or an internal fault has been detected in
the charger. This fault will nearly always be set within the
first 30 seconds of operation. If it occurs after the charger
has started charging normally, be sure to make a note of it.

Remove excessive AC loads from inverter if
installed.

Try to clear the fault by unplugging the AC, wait-
ing 30 seconds and reconnecting the ac power.

Check all battery connections. Look for a high
resistance connection.The most likely reason for
this fault is a fault in the battery such as a bad
battery connection, an open cell, or insufficient
water.

This fault will occur if an internal fuse inside the
charger blows. If the green wire is shorted to
ground even momentarily, this fuse will blow. To
check the fuse, measure with an ohmmeter
between the green and red wires with the AC
disconnected. If a short circuit is not measured,
the fuse has blown. Return unit to a service
depot to have this fuse replaced.

If this fault occurs after battery charging has
started, confirm that AC power was not inter-
rupted and that all battery connections are
good.

If all battery connections are good, an internal
fault has been detected and the charger must be
brought to a qualified service depot.