UNICO TWIN
ENGLISH
EN - 43
6.6.4 - ANOMALIES AND REMEDIES
Malfunctioning Cause What must be done?
The unit will not start. Current failure Wait for the current to be restored.
The unit is disconnected from the
current.
Check that the plug is inserted in the
wall socket.
The thermal-magnetic circuit breaker
has intervened.
Restore the thermal-magnetic circuit
breaker.
The remote control batteries may be
discharged.
Replace the batteries.
The time set with the timer may not
be correct.
Wait or annul the timer setting.
The appliance doesn’t cool/heat
sufcientlyanymore.
Incorrect temperature setting. Set the temperature correctly. Consul
the"Usingtheremotecontrol"chapter
for the procedure.
Theairlterisdirty. Cleantheairlter.
The doors or windows are open. Close the doors or windows.
The air inlet or outlet vents of the
indoor or outdoor units are blocked.
First, remove the obstructions and
then re-start the unit.
The thermo refrigerating load has
increased (for instance, a door or a
window have been left open, other-
wise the air conditioner is installed in
an environment with an equipment
which dissipates a strong quantity
of heat);
Close the door or the window.
Change environment of installation.
Both internal units are operational;
the thermal load is higher than the
power of each internal unit.
Switch off one of the two internal units.
If the problem has not been solved, please contact the nearest technical assistance service.
Please give detailed information about the malfunction and on the equipment version.
7 - MAINTENANCE AND CLEANING
Before proceeding with any maintenance and cleaning,
always make sure the system has been switched off, using
the remote control, and the power supply plug has been
disconnected from the system socket (or the upstream
master isolating switch is positioned at “0” OFF).
Do not touch the metal parts of the unit when removing the air lters.
They are very sharp. Cuts or injury risk.
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