LITE
16
EN
Symptom Cause Solution
• If the unit does not come on or the
display and the unit go off during
operation.
• Power fuse disconnected or blown.
• Electronic control defective.
• Power cable disconnected, with poor
contact or cut.
• Electronic control power fuse (10A)
disconnected or blown.
• Power cable polarity inverted.
• Connect or replace the power cable fuse.
• Replace the electronic control.
• Check and correct any possible poor contacts, breakages or disconnections of
the battery power cable.
• Connect or replace the electronic control power fuse (rst take down the control
panel’s front panel).
• Check and correct the position of the battery connection cables (Az with 25A fuse
to + and M to -).
(If the error persists, contact the Authorised Technical Service).
• When the unit starts up or runs,
the display switches between
E0
and
CA
(return air sensor failure).
The unit works during this error, but
without return air sensor regulation
(and the temperature cannot be
changed). Press the On/Off button
on the control panel or remote
control once to turn off.
• Poor connection in return air sensor
cables or terminals.
• Return air sensor disconnected or faulty.
• Check and correct any possible poor contacts in return air sensor cables or
terminals.
• Check and correct any possible poor contacts in return air sensor cables or
terminals.
(If the error persists, contact the Authorised Technical Service).
• When the unit starts up or runs, it
gives out a beeping sound followed
by the display showing Lb (battery
running low). The unit shuts down
automatically.
• Poor contact in power terminals or
connections.
• Battery discharged or defective.
• Check and correct any possible poor contacts in connections or terminals of the
battery power cable.
• Charge or replace the battery.
(If the error persists, contact the Authorised Technical Service).
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