Midea MIV V4+ Mini, Руководство по обслуживанию

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DM12-01.01.05en MIV V4+ Mini DC Inverter R410A (220V, 8 kW)
Outdoor units 23
11.2 Troubles and causes of remote controller
Before asking for serving or repairing, check the following points.
Symptoms Causes Solution
The fan speed can not be changed.
Check whether the MODE indicated
on the display is "AUTO"
When the automatic mode is selected, the
air conditioner will automatically change
the fan speed.
Check whether the MODE indicated
on the display is "DRY"
When dry operation is selected
，
the air
conditioner automatically change the fan
speed. The fan speed can be selected
during "COOL" , "FAN ONLY", and "HEAT"
The remote controller signal is not
transmitted even when the ON/OFF
button is pushed.
Check whether the batteries in the
remote controller are exhausted.
The power supply is off.
The TEMP .Indicator does not come
on. Check whether the MODE indicated
on the display is FAN ONLY The temperature cannot be set during FAN
mode.
The indication on the display
disappears after a lapse of time.
Check whether the timer operation
has come to an end when the
TIMER OFF is indicated on the
display.
The air conditioner operation will stop up to
the set time
The TIMER ON indicator goes off after
a lapse of certain time.
Check whether the timer operation
is started when the TIMER ON is
indicated on the display. Up to the set time, the air conditioner will
automatically start and the appropriate
indicator will go off.
No receiving tone sounds from the
indoor unit even when the ON/OFF
button is pressed.
Check whether the signal
transmitter of the remote controller
is properly directed to the infrared
signal receiver of the indoor unit
when the ON/OFF button is
pressed.
Directly transmit the signal transmitter of
the remote controller to the infrared signal
receiver of the indoor unit, and then
repeatly push the ON/OFF button twice.