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Installation and Maintenance
(1)Models:09/12K:
Malfunction and Status Display Table
Display of Malfunction of Indoor Unit
Malfunction of
Outdoor Unit
Status of LED Lamp
Status of LED
Lamp
No.
Malfunction Name
Malfunction
Type
Display
Nixie
Tube
LED
Lamp
for
Operation
LED Lamp
for
Cooling
LED Lamp
for
Heating
Yellow
LED
Lamp
Red
LED
Lamp
1
Malfunction of Circuit for zero cross detection
U8
Blinks
for 17
times
2
Malfunction protection for jumper cap
C5
Blinks
for 15
times
3
No feedback from indoor motor
H6
Blinks
for 11
times
4
Indoor ambient temp sensor has open or short
circuit
F1
Blinks
once
5
Indoor evaporator temp sensor has open or
short circuit
F2
Blinks
twice
6
Liquid valve temp sensor has open or short
circuit
b5
Blinks for
19 times
7
Gas valve temp sensor has open or short
circuit
b7
Blinks for
22 times
8
Module temp sensor has open or short circuit
P7
Blinks for
18times
9
Outdoor ambient temp sensor has open or
short circuit
F3
Blinks for
3 times
Blinks
for 6
times
10
Outdoor inlet pipe temp sensor of condenser
has open or circuit (for commercial use)
A5
11 Outdoor middle pipe temp sensor of condenser
has open or short circuit
F4
Blinks for
4 times
Blinks
for 5
times
12
Outdoor outlet pipe of condenser has open or
short circuit (for commercial use)
A7
13
Outdoor discharge temp sensor has open or
short circuit
F5
Blinks for
5 times
Blinks
for 7
times
14
Communication malfunction of indoor and
outdoor units
E6
Blinks
for 6
times
15
Malfunction of circuit for detecting phase
current of compressor
U1
Blinks for
12 times
16
Demagnetization protection of compressor
HE
Blinks for
14 times
17
Malfunction of voltage drop of DC bus bar
U3
Blinks for
20 times
18
Module temperature protection
P8
Blinks for
19 times
Blinks for
10 times
19
Lack of refrigerant or block protection for the
system (not applicable to residential air
conditioner)
F0
Blinks for
10 times
Blinks
for 9
times
20
Malfunction of charging for capacitor
PU
Blinks for
17 times
21
High pressure protection for the system
E1
Blinks
once
22
Low pressure protection for the system
reserved
E3
Blinks
for 3
times
23
Lock of compressor (for commercial air
conditioner)
LE
/
/
/
24
Reset of drive module (for commercial air
conditioner)
P0
/
/
/
25
Overspeed (for commercial air conditioner)
LF
/
/
/
26
Malfunction of
PF
/
/
/
27
AC contactor protection (for commercial air
conditioner)
P9
/
/
/
28
Temperature drift protection(for commercial air
conditioner)
PE
/
/
29
Sensor connection protection (for commercial
air conditioner)
Pd
/
/
/
30
Communication malfunction for drive board(for
commercial air conditioner)
P6
Blinks
for 16
times
31
Thermal overload protection for compressor
H3
Blinks for
3 times
Blinks for
8 times
32
Non-match between indoor and outdoor units
LP
Blinks for
16 times
33
Malfunction of memory chip
Malfunction
of
hardware
EE
Blinks for
15 times
Содержание DHY09CSB21S
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