7.TROUBLE SHOOTING
Note: The following error codes are all new error code.
2.
Outdoor error code
When the failure happens in the indoor unit or the outdoor unit, after the compressor
turns off ,the outdoor control board will display the following error code:
sheet 1 outdoor error code
error
code
error
description
the root cause may be one of the reason how to deal with
1
Outdoor ambient
temperature
sensor fault
1.The outdoor ambient temperature sensor
connect loose;
2.The outdoor ambient temperature sensor
is failure;
3.The sampling circuit is failure
1.Reconnect the outdoor ambient
temperature sensor;
2.Replace the outdoor ambient
temperature sensor components;
3.Replace the outdoor control board
components.
2
Outdoor coil
temperature
sensor fault
1.The outdoor coil temperature sensor
connect loose;
2.The outdoor coil temperature sensor is
failure;
3.The sampling circuit is failure
1.Reconnect the outdoor coil
temperature sensor;
2.Replace the outdoor coil
temperature sensor components;
3.Replace the outdoor control board
components.
3
The unit
over-current
turn off fault
1.Electrical board current sampling circuit is
failure;
2.The current is over high because of the
supply voltage is too low
3.The on-off compressor is blocked
4. Overload in cooling mode
5.Overload in heating mode
1. Replace the electrical board
components;
2. Normally protection
3. Replace the compressor
4. Please see the Note 3
5. Please see the Note 4
4
EE data fault
1.EE components is failure;
2.EE components control circuit failure;
3.EE components insert incorrect
1.Replace the EE components;
2.Replace the outdoor control board
components;
3.Reassembly the EE components.
5
cooling freezing
protection(the
indoor coil
temperature is
too low) or
heating
overload(indoor
coil temperature
is too high)
1.The indoor unit can not blow air normally;
2.The room temperature is too low in cooling
mode or the room temperature is too high in
heating;
3.The filter is dirty;
4.The duct resistance of the duct unit is too
high
5.The setting fan speed is too low
6. The indoor unit has been installed without
standard
1.Check the indoor fan, indoor fan
motor and evaporator whether
normally;
2. Normally protection
3.Clean the filter;
4.Check the volume control valve,
duct length etc;
5.Set the speed with high speed;
6.Reinstall the indoor unit refer to the
user manual to change the distance
between the indoor unit and the wall
or ceiling.
7
The
communication
fault between
the indoor unit
and outdoor unit
1.The connection cable connect wrong
between the indoor unit and outdoor unit;
2.The communication cable connect loose;
3.The communication cable is fault;
4.The indoor control board is fault;
5.The outdoor control board is fault;
6.Communication circuit fuse open;
7.The specification of communication cable
is incorrect.
1.Reconnect the connection cable
refer to the wiring diagram;
2.Reconnect the communication
cable;
3.Replace the communication cable;
4.Replace the indoor control board;
5.Replace the outdoor control board;
6.Check the communication circuit,
adjust the DIP switch and the
short-circuit fuse
7.Choose suitable communication
cable refer to the user manual
Summary of Contents for SRH-PM18DC
Page 20: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 23 2 AMS 18UR4SVUP3 VG3 VL3 VT3 UP3 UL3 UQ3 ...
Page 21: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 26 OUTDOOR 1 AMW2 16U4SGC1 ...
Page 22: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 29 4 AMW3 24U4SZD ...
Page 23: ...5 5 E EL LE EC CT TR RI IC CA AL L D DA AT TA A 32 7 AMW4 36U4SAC ...
Page 64: ...9 9 P PA AR RT TS S L LI IS ST T 67 MODEL AMS 18UR4SVUP3 UL3 UQ3 VG3 VL3 VT3 ...
Page 67: ...9 9 P PA AR RT TS S L LI IS ST T 89 Mode AMW4 36U4SAC ...
