Immergas HYDRO - Page 39

39
Remote control problems and their causes.
Note: check the points in the table below before
requesting service or repairs.
Symptoms Causes Solution
e fan speed cannot be
changed.
● Check if the mode indicated on the display is
“AU T O”.
When automatic mode is selected, the fan coil automat-
ically changes the fan speed.
● Protection from hot air in cooling mode.
● Protection from cold air in heating mode.
Reduce the inlet temperature in cooling mode, increase
it in heating mode.
● Check if the mode indicated on the display is DRY.
When DRY mode is selected, the fan coil automatically
selects the fan speed. e fan speed can be selected
during COOLING, FAN ONLY and heating modes.
e remote control signal is
not transmitted, not even when
ON/OFF is pressed.
● Check whether the batteries in the remote control
are at.
e supply voltage is not on.
e TEMP. indicator does not
switch on.
● Check if the mode indicated on the display is
“FAN ONLY”.
e temperature cannot be set in “FAN” mode.
e indication on the display
disappears aer a few seconds.
● Check if operation of the timer stops when TIMER
OFF appears on the display.
e fan coil will stop working aer the predened
interval.
e TIMER ON indicator
switches o aer the predened
interval.
● Check if operation of the timer starts when TIM-
ER ON appears on the display.
When the predened interval is reached, the fan
coil starts automatically and the corresponding LED
switches o.
e indoor unit does not emit
any sound, not even when ON/
OFF is pressed.
● Check if the remote control’s signal transmitter is
properly directed towards the indoor unit’s infra-
red signal receiver whenON/OFF is pressed.
Direct the remote control’s signal transmitter properly
towards the indoor unit’s infrared signal receiver and
press ON/OFF twice.
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.