Midea CTBU-18HWFN1-M - For 36 K-48 K Outdoor Unit; Outdoor Check Function

90
For 36K-48K Outdoor Unit
No
Problems
Error Code
1
Communication malfunction between indoor and outdoor units
E1
2
Current overload protection
F0
3
Outdoor ambient temperature sensor (T4 ) malfunction
F1
4
Condenser coil temperature sensor (T3) malfunction
F2
5
Compressor discharge temperature sensor (T5) malfunction
F3
6
Outdoor unit EEPROM parameter error
F4
7
Outdoor fan speed malfunction
F5
8
Inverter module (IPM) malfunction
P0
9
Over-voltage or under-voltage protection
P1
10
Compressor top high temperature protection (OLP)
P2
11
Low ambient temperature cut off in heating
P3
12
Compressor drive malfunction
P4
13
High temperature protection of indoor coil in heating
J0
14
Outdoor temperature protection of outdoor coil in cooling
J1
15
Temperature protection of compressor discharge
J2
16
PFC module protection
J3
17
Communication malfunction between control board and IPM board
J4
18
High pressure protection
J5
19
Low pressure protection
J6
20
Outdoor IPM module temperature sensor malfunction
P7
21
AC voltage protection
J8
Outdoor check function
N
Display
Remark
00
Normal display
Display running frequency, running state or malfunction
code
01
Indoor unit capacity demand code
Actual data*HP*10
If capacity demand code is higher than 99, the digital display
tube will show single digit and tens digit. (For example, the
digital display tube show “5.0”,it means the capacity demand
is 15. the digital display tube show “60”,it means the
capacity demand is 6.0)
02
Amendatory capacity demand code
03
The frequency after the capacity requirement
transfer
04
The frequency after the frequency limit
05
The frequency of sending to 341 chip
06
Indoor unit evaporator outlet temp.(heating T2，
cooling T2B)
If the temp. is lower than 0 degree, the digital display tube
will show “0”.If the temp. is higher than 70 degree, the digital
display tube will show “70”.
07
Condenser pipe temp.(T3)
If the temp. is lower than -9 degree, the digital display tube