La Marche MXHF, Installation And Operation Manual, Page: 24 / 31

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4.2 Troubleshooting
Problem Possible Cause Remedy
Main Switch Alarm Front panel switch in the STOP
position Charge will start when the switch
is set to START
Inlet Filter Alarm Air inlet filter blocked Clean the filter
Low Mains Alarm AC mains supply is low or power
modules may be overloaded Replace the faulty power
module(s)
Non-Urgent Rectifier Fail Alarm Faulty power modules are
affecting the ability of the
charger to charge the battery
Replace the faulty power
module(s)
Rectifier Fan Fail Faulty power module fan Replace the faulty power module
Rectifier Over Temperature Power module is overheating Check air inlet filter is not
blocked, check the charger is
installed without any obstructions
to air inlet and outlet
Configuration Error Charger cannot provide the
target output current Check the controller
configuration matches the
quantity of power modules
installed, add power module if
necessary
Output Fuse Blown output fuse Check battery polarity, replace
blown fuse
No Output Current Charger failing to provide the
required current Check the operator has not been
unplugging the battery mid
charge cycle or charge profile
has allowed the battery current
fall below 0.7A
Monitor ADC Fail Faulty MPC35 controller module Replace the MPC35 controller
module ensuring the replacement
is correctly configured
Over Discharged Battery Battery is below 1.9 V/C at
connection but recovers within
30 second of charge This happens typically due to the
battery being quickly unplugged
from the truck and plugged into
the charger without allowing the
battery to recover. Regular
occurrences
might need
investigation