7
Troubleshooting
Mode interfere
For the reason that all indoor
units use one outdoor unit,
outdoor unit can only run with
same mode (cooling or heating),
so, when the mode you set is
different from the mode, that
outdoor is running with, mode
interfere occurs. Following
shows the mode interfere scene.
Fault code
When the air conditioner fails, the LED light on indoor display board will show the corresponding fault
code according to different fault.
Note: For the unit with digital tube, it will show the corresponding fault codes; for the
C
unit no digital tube only LED light, it will only show the corresponding fault codes with
timer light.
Specific correspondis as follows:
Fault
Fault description
code
Fault with the room
E1
temperature sensor on the N
# indoor unit
Fault with the Defrosting/
E2
Condenser Temperature
Sensor in Outdoor
Fault with the temperature
E3
Sensor in the Middle of N #
indoor evaporator
Free match split type air conditioner / User Manual
cooling
dry
cooling
dry
heating
fan
outdoor unit always run with the mode of first indoor unit that
turned on. When the setting mode of following indoor unit
is interfere with it, 3 beeps would be heard, and the indoor
unit interfered with the normal running units would turn off
automatically.
Wall mounted
Causes of possible failure
Damage of the room temperature sensor on the indoor unit
Poor contact of the room temperature sensor on the indoor
unit
Damage of wiring of the room temperature sensor on the
indoor unit
Damage of the main PCB on the indoor unit
Damage of the temperature sensor on the outdoor unit
Poor contact of the temperature sensor on the outdoor unit
Damage of wiring of the temperature sensor on the outdoor
unit
Damage of the main PCB on the outdoor unit
Damage of the temperature sensor on the indoor unit
Poor contact of the temperature sensor on the indoor unit
Damage of wiring of the temperature sensor on the indoor
unit
Damage of the main PCB on the indoor unit
heating fan
--normal
--mode interfere
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