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Page 33
9. TROUBLESHOOTING GUIDELINE
Problem
Remedy or suggestion
The monitor doesn’t operate (no LED on the
shunt or no display on the CDU)
• Check shunt- and battery side connections
• Check QLink cable to the CDU
• Make sure the inline fuse of the supply wire
is installed and not blown
• Check battery voltage (must be > 6.5V)
• Try to restart the monitor by removing and
reconnecting the supply wire
Current readout gives wrong polarity (current
should positive when charging and negative
when discharging the battery)
• Shunt installed in reverse. Make sure that
the ‘Battery –‘ bolt is connected to the
battery negative terminal and the ‘System
–‘ bolt to the battery loads.
No changes can be made in the Function setup
menu (the text ‘Locked’ appears when trying
to change a value
• The battery monitor is locked by the
installer. Please see chapter 8 for more
details.
State of Charge or Time remaining readout
not accurate
• Check if all current is owing through the
shunt (the negative terminal of the battery
may only contain the wire going to the
‘battery –‘ side of the shunt!)
• Shunt installed in reverse. Make sure that
the ‘Battery –‘ bolt is connected to the
battery negative terminal and the ‘System
–‘ bolt to the battery loads.
• Check if all battery properties (F1.x) are
correctly set
• Check if the battery monitor is synced with
your battery. Perform full charge cycle.
Display returns ‘- -.-‘ in temperature readout
• Connection with the temperature sensor is
lost. Check sensor cable.
The monitor resets all the time
• Check wiring for corrosion or bad contacts
• Battery might be at or defective
