No.
4
5
6
10
Fault
codes
E1
E2
E4
H4
Faults
Indoor ambient temp.
sensor malfunction
Indoor unit coil temp.
sensor malfunction
Outdoor unit coil temp.
sensor malfunction
Condensed water
level switch raises
an alarm
Sensor is abnormal.
Causes
Sensor is abnormal.
Sensor is abnormal.
1. In cooling or dehumidifying mode,
too much condensed water occurs
or the water is out of smooth
drainage.
2. The high water level alarm lasts
for 20 minutes and still remain, in
this case, system will raise sound
alarm.
Treatment
Cut off power supply, check whether the sensor is
well connected, if so, replace the abnormal sensor.
Normally, the system will solve the fault in 20
minutes automatically.
Note: In the process, only "heating" and"fan"
mode is available when pressing "mode" button.
1. The system is locked, you need to cut off
power supply and check the drainage pump.
2. when the malfunction is worked out, restore
the power supply.
The wire controller can also receive remote signal from remote controller.
28
17
P8
Working indication
of crankcase heater
System protection
Note:
FAULT INDICATING INSTRUCTIONS
FAULT INDICATION ON WIRE CONTROLLER
1
2
3
A0
C0
C1
Power supply malfunction
Communication of wire
control malfunction
Communication between
indoor and outdoor unit
malfunction
Fault phase or short of phase.
Wire control is not well connected.
Indoor unit and outdoor unit are out
of communication
Find the reason then correct the wiring.
Connect the wire control firmly.
Contact local service center.
Cut off power supply, check whether the sensor is
well connected, if so, replace the abnormal sensor.
Cut off power supply, check whether the sensor is
well connected, if so, replace the abnormal sensor.
7
8
9
H1
H2
H3
Outdoor unit protection
alarm
Compressor high pressure
/overload protection alarm
Compressor low pressure
protection alarm
Outdoor unit is at fault
Outdoor temperature is too high; air
inlet or outlet is blocked; air filter is
very dirty.
Outdoor temperature is too low;
refrigerant has leaked too much;
suction pressure drops rapidly when
collecting refrigerant to outdoor unit.
Check the cause as the flashing mode of the lamp
on outdoor unit main board
Find out the cause and fix it.
Find out the cause and fix it.
16
P7
Defrosting protection
when heating
System protection
Automatic recovery.
15
P6
Prevention of cold air
protection when heating
System protection
Automatic recovery.
14
FF
Unit running failure
System protection
Restart the unit.
13
P3
Outdoor coil over-heated
protection when cooling
System protection
Automatic recovery.
12
P2
Indoor coil over-heated
protection when heating
System protection
Automatic recovery.
11
P1
Indoor coil anti-freeze
protection when cooling
System protection
Automatic recovery.
18
CF
Indication to clean filter
Filter mesh is dirty.
Cut off the power, and then clean the filter.
Automatic recovery.
