194
PB
TROUBLESHOOTING
18K, 24k and 36k outdoor Fault Codes
Fault
code
Fault Description
Possible R eason of Abnormality
RE MARKS
How to D eal With
12 voltage absent phase
refer to the wiring diagram;
1. Normally protection
2. Check the wiring connection
Three-phase power is abnormal;
The outdoor wiring connect wrong;
The outdoor control board is
failure.
board
3. Replace the outdoor control
three-phase
Application of
models
power supply
13 Compressor overheat
protector device
1. The wiring of the overload
protector connect loose.
2. The overload protector is failure .
3. The refrigerant is not enough;
4. The installation pipe is too long
than normal, but not add the
enough refrigerant;
5. The expansion valve is failure;
6. The outdoor control board is
failure
14
1.
2.
the high pressure
switch operate or the
unit turn off for high
pressure
protection
1. Reconnect the wiring of the
overload protector;
2. Replace the overload
protector;
3. Check the welding point of the
unit to confirm whether it is
leakage, and then recharge
the refrigerant;
4. Add the refrigerant;
5. Replace expansion valve;
6. Replace the outdoor control
board.
1.
The wiring of the high pressure
protector connect loose;
The high pressure protector is
failure;
2.
3.The outdoor control board is
abnormal;
4. Overload in cooling;
5. Overload in heating.
Replace the high pressure
protector;
Reconnect the wiring the high
pressure protector;
Applied to
high
pressure
models with
switch or
pressure
sensor
3. Replace the outdoor control
board;
4. Please refer to the Note 3;
5. Please refer to the Note 4.
15
the low pressure
switch protection or
the unit turn off for low
pressure protection
1. The wiring of the low pressure
switch connect loose;
2. The low pressure switch is failure;
3.The refrigerant is not enough;
4.The expansion valve failure in
heating mode;
5.The outdoor control board is
abnormal.
Applied to
models with
low pressure
switch or
pressure
sensor
16
System overload
overload protection in
cooling mode
Please refer to the Note 3.
17
1. Reconnect the wiring of the
low pressure switch;
2. Replace the low pressure
switch;
3.Check the welding point to
confirm whether the unit is
leakage, and then
add some refrigerant;
4. Replace the expansion valve;
5. Replace the outdoor control
board.
Discharge
temperature sensor
fault
1.The wiring of the discharge
temperature sensor connect loose;
2.The discharge temperature sensor
is failure;
3.The sampling circuit is abnormal.
18 AC voltage is
abnormal
1.Reconnect the wiring of the
discharge temperature sensor;
2.Replace the discharge
temperature sensor;
3.Replace the outdoor control
board.
2.The AC voltage of sampling circuit
on the driver board is abnormally
19
1. Normally protection, please
check the supply power;
2. Replace the driver board.
Suction temperature
sensor fault
1.The wiring of the suction
temperature sensor connect
loose;
2. The suction temperature sensor is
failure;
3. The sampling circuit is abnormally
22 The defrosting sensor
fault
1.Reconnect the wiring of the
suction temperature sensor;
2.Replace the suction
temperature sensor;
3.Replace the outdoor control
board.
1.The wiring of the defrosting sensor
connect loose;
2.The defrosting sensor is failure;
3.The sampling circuit is abnormally
23
1. Reconnect the wiring of the
defrosting sensor;
2. Replace the def rosting sensor;
3. Replace the outdoor control
board.
Expansion valve A
tube (thin) sensor
fault
1. The wiring of the sensor for the
expansion valve A(thin tube)
connect loose;
2. The sensor for the expansion
A(thin tube) is failure;
3. The sampling circuit is
abnormally
1. Reconnect the wiring of the
sensor for the expansion valve
A (thin tube);
2. Replace the sensor for the
expansion valve A (thin tube);
3. Replace the ou tdoor control
board.
Содержание FPCG0912
Страница 9: ...9 INTRODUCTION Product Appearance Cassette type Model Btu h Indoor Unit Out door Unit 24K 36K...
Страница 119: ...119 OPERATION Figure 301 Remote Control Operation and Function...
Страница 132: ...132 INSTALLATION Outdoor Units Fig 432 Fig 433...
Страница 140: ...140 MAINTENANCE...
Страница 163: ...163 COMPONENTS TESTING Fan Motor Fig 605...
Страница 200: ...200 WIRINGDIAGRAMS 7k Wall Units...
Страница 203: ...203 WIRING DIAGRAMS 24k Outdoor Units Electric wiring diagram 1993419 E...
Страница 204: ...204 WIRING DIAGRAMS 36k Outdoor Units...
Страница 205: ...205 PARTSCATALOG 18K Outdoor Condensor...
Страница 206: ...206 PARTSCATALOG 18K Outdoor Condensor...
Страница 207: ...207 PARTSCATALOG 18K Outdoor Condensor...
Страница 210: ...210 PARTSCATALOG 24K Outdoor Condensor Figure 901A 4 C 4x12...
Страница 211: ...211 PARTS CATALOG 24K Outdoor Condensor Figure 901B 1 1 1 I I i I I _ ____ I L i...
Страница 212: ...212 PARTS CATALOG 24K Outdoor Condensor Figure 901C II c tx12 II...
Страница 215: ...215 PARTS CATALOG 36K Outdoor Condensor Figure 902A 11 I i i r I h 1 1 I I _ I 11 12 11 I I I Ii I 1 I Ii L l_ ii I _...
Страница 216: ...216 PARTS CATALOG 36K Outdoor Condensor Figure 902B i...
Страница 217: ...217 PARTS CATALOG 36K Outdoor Condensor Figure 902C u...
Страница 222: ...222 PARTS CATALOG 9K 12K Indoor Cassette Figure 904 B M4x08...
Страница 226: ...226 PARTS CATALOG 24K INDOOR CASSETTE FIgure 906 0 1 A 4X8 13 19 NOTE I I r 1 I I iA 4X12 t I 9 5X53 11 4 _ _ A 4X10...
Страница 228: ...228 PARTS CATALOG 9K 12K DUCTED INDOOR Figure 907a...
Страница 229: ...229 Figure 907b PARTS CATALOG 9K 12K DUCTED INDOOR...
Страница 230: ...230 Figure 907c PARTS CATALOG 9K 12K DUCTED INDOOR...
Страница 232: ...232 PARTS CATALOG 18K Ducted Indoor Figure 908a...
Страница 233: ...233 PARTS CATALOG 18K Ducted Indoor Figure 908b...
Страница 234: ...234 PARTS CATALOG 18K Ducted Indoor Figure 908c...
Страница 236: ...236 PARTS CATALOG 24k Ducted Indoor Figure 909a _ _ _ 1...
Страница 237: ...237 PARTS CATALOG 24k Ducted Indoor Figure 909b _ _ __lllfllllllllllalll l rla _ fllll _ 2...
Страница 238: ...238 PARTS CATALOG 24k Ducted Indoor Figure 909c A __ _ _ C llillllp_ ___ 111 11111111111A11 _ lffllllllal 3...