Immergas HYDRO Instructions And Warnings page 39

Remote control problems and their causes.
Note: check the points in the table below before
requesting service or repairs.
Symptoms
The fan speed cannot be
changed.
The remote control signal is
not transmitted, not even when
ON/OFF is pressed.
The TEMP. indicator does not
switch on.
The indication on the display
disappears after a few seconds.
The TIMER ON indicator
switches off after the predefined
interval.
The indoor unit does not emit
any sound, not even when ON/
OFF is pressed.
Error codes.
Note: if any of the following malfunctions oc-
cur, do not try to repair the unit yourself but
contact your dealer.
Make sure you provide precise information on
the type of fault and the device model.
Codes Description of the errors
EE DC motor malfunction.
E2
T1 evaporator sensor malfunction.
E3 T2 evaporator sensor malfunction.
E7
EEPROM communication error.
E8 Water level alarm malfunction.
Causes
● Check if the mode indicated on the display is
"AUTO".
● Protection from hot air in cooling mode.
● Protection from cold air in heating mode.
● Check if the mode indicated on the display is DRY.
● Check whether the batteries in the remote control
are flat.
● Check if the mode indicated on the display is
"FAN ONLY".
● Check if operation of the timer stops when TIMER
OFF appears on the display.
● Check if operation of the timer starts when TIM-
ER ON appears on the display.
● Check if the remote control's signal transmitter is
properly directed towards the indoor unit's infra-
red signal receiver whenON/OFF is pressed.
When automatic mode is selected, the fan coil automat-
ically changes the fan speed.
Reduce the inlet temperature in cooling mode, increase
it in heating mode.
When DRY mode is selected, the fan coil automatically
selects the fan speed. The fan speed can be selected
during COOLING, FAN ONLY and heating modes.
The supply voltage is not on.
The temperature cannot be set in "FAN" mode.
The fan coil will stop working after the predefined
interval.
When the predefined interval is reached, the fan
coil starts automatically and the corresponding LED
switches off.
Direct the remote control's signal transmitter properly
towards the indoor unit's infrared signal receiver and
press ON/OFF twice.
39
Solution