User manual

Table Of Contents
Error Possible cause Solution
The LCD is mechanically defective. Contact your installer. The device
must be replaced.
Display readability
temporarily impaired.
Ambient temperature lies outside
the permissible range. This can
cause discolouration of the display
or noticeably sluggish display
response times.
Ensure a permissible ambient
temperature according to the
technical data.
Poor contrast setting. Adjust the contrast setting.
Load(s) controlled via
AUX 1/2/3 cannot be
operated or can only
be briefly operated.
The deep-discharge protection has
switched off the load(s) via an AUX
output as a result of excessively low
battery voltage.
Charge the battery.
Battery is not being
charged.
Solar module not connected. Connect the solar module.
Short circuit at solar module
connection.
Rectify short circuit.
Incorrect solar module voltage. Use a solar module of a suitable
voltage.
Notice
The module voltage must be a
factor of 1.15 times larger than the
current battery voltage in order to
charge the battery.
Solar module defective. Replace the solar module.
System consumption higher than
the recharging rate.
Reduce consumption.
Battery fully charged. Charge controller stops charging.
The device is not switched on. Switch on the device via
‘Main menu è Device On/Off
.
The AUX IO control switches
charging off.
Check the settings and use of the
AUX IO function.
The charging power,
charging current and
battery voltage remain
low, despite good solar
irradiation and correct
installation of the solar
module and battery.
Controller possibly defective. Contact your installer.
Battery voltage very
low.
n Battery excessively discharged
by loads (deep-discharge
protection not installed).
n Battery is defective.
n Charge the battery with an
external charger.
n Replace the battery.
756.404 | Z01 | 16.06
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