External Unit Error List - elco AEROTOP SPLIT M-RX Guide D'installation

Maintenance

External unit error list

TDM
DESCRIPTION
ERROR
905 HP CMP Mismatch Error
906 HP FAN Mismatch Error
907 HP V4W Mismatch Error
908 HP EXV Mismatch Error
909 HP Zero Fan Speed
947 HP V4W Error
912 HP V4W Error Service
948 HP TD Error
949 HP TS Error
911 HP TE Error
952 HP TO Error
913 HP LWT Error
914 HP TR Error
916 HP TEO Error
915 HP COMM TDM Error
HP Compressor Heater
953
Mismatch
954 HP Base Panel Heater Mismatch
HP Compressor model
956
mismatch
957 HP Fan model mismatch
922 HP Freeze Error
917 HP Freeze Service
951 HP HIGH TD Error
950 HP HIGH TD Service
918 HP Pump Down Error
919 HP HIGH SDT Error
931 HP INVERTER Error
Legend:
HP Heat pump
CMP compressor
4WV 4 way valve
EXV Expansion valve
TD Discharge temperature sensor
TE Evaporator temperature sensor
TS Suction temperature sensor
TR Refrigerant temperature sensor
TO Outdoor temperature sensor
LWT Leaving water temperature
EWT Entering water temperature
TDM Thermodynamic module, external unit control board
SDT Saturated discharge temperature sensor
TEO Auxiliary Evaporator temperature sensor
RESET INVERTER
HP PO- SERVICE
WER OFF RESET
x
x
x
x
x
x
x
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
x
-- x
x
-- x
-- --
x
-- --
DESCRIPTION
ERROR
1 Heat Sink-Overheat
2 Compressor Ipm Over-Current
3 Compressor Fail To Drive
4 Compressor Over-Current
5 Input Voltage Lack Of Phase
6 Compressor Ipm Current Sampling Failure
7 Compressor Drive Capacitors Precharge Failure
8 Dc Bus Over-Voltage
9 Dc Bus Under-Voltage
10 Ac Input Under-Voltage
11 Ac Input Over-Current
12 Ac Input Voltage Sampling Failure
13 Dsp&Pfc Communication Error
14 Heat Sink Sensor Error
15 Dsp&Mcu Communication Error
16 Abnormal Communication With Main Board
17 Ipm Module Over-Heat
18 Compressor model fault
19 High Pressure Protection
21 Fan1 Fail To Drive
27 Fan1 Over-Current
29 Fan1 1ph Error
35 High pressure switch protection
36 Ow pressure switch protection
37 Klixon protection
38 Inter-boards communication error
39 IPM over current
40 Fail to drive the compressor
41 Compressor over current
42 IPM current sampling failure
43 Heat-sink over-heat
44 Fail to Precharge
45 DC bus over voltage
46 DC bus under voltage
47 AC input under-voltage
48 AC input over-current
49 compressor emergency stop
50 AC input voltage sampling fault
51 Heat-sink sensor error
52 DSP & MCU communication error
Abnormal communication with IDU control
53
board
1ph 3ph
x x
x
x
x x
x
x
x
x
x
x
x
x
x
x
x
x
x
x x
x x
x
x
x
x x
x x
x x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
99 / GB