FR
ES
PT
IT
EL
PL
RU
KZ
UA
RO
EN
134
Model
Connecting
wiring
Power cable
S-AC-10-OUT EQ3-24K 4 G 1.0mm² 3 G 2.5mm²
Model
Connecting
wiring
Power cable
S-AC-11-OUT EQ3-9+12K 2 x 4 G 1.0mm² 3 G 2.5mm²
1(N) 2(L)
3(C)
1
2
3(C)
1
2
3(C)
1
2
1
2
3(C)
1
2
3(C)
1
2
Indoor unit
Indoor unit
Indoor unit
Connecting wiring
Connecting wiring
Connecting wiring
Power cable
Power cable
Outdoor unit
Outdoor unit
Error Messages
Flash times of LED
on mainboard
Trouble description Analyze and diagnose
1 Eeprom failure Outdoor main board eeprom fail
2 IPM failure IPM failure
4
Communication error between main board and spdu module. SPDU
Communication error
Communication fail over 4min
5 High pressure protection System high pressure over 4.3 Mpa
8 Compressor discharging temperature protection Compressor discharging temperature over 110 centigrade
9 Abnormal of DC moter Jam of DC motor or motor failure
10 Abnormal of piping sensor Piping sensor short-circuit or open-circuit
11 Suction temperature sensor failure The wiring of compressor is wrong or the connection is poor
12 Abnormal of outdoor ambient sensor
When the The wiring of compressor is wrong or the connection
is poor
13 Abnormal of compressor discharge sensor Compressor discharge sensor short-circuit or open-circuit
15 Communication error between main board and outdoor unit Communication fail over 4min
16 Lack of refrigerant Check if there is leakage in the unit.
17 4-way valve reverse fail
Alarm and stop if detect Tm≤15 last for 1min after compressor has
started for 10min in heating mode, confirm the failure if it appears
3 times in one hour.
18 Compressor jam (only for spdu) Inner compressor is abnormal jammed
19 Module PWM select circuit error Module PWM select wrong circuit
25 Compressor U-phase over-current The current of compressor U-phase is too high
25 Compressor V-phase over-current The current of compressor V-phase is too high
25 Compressor W-phase over-current The current of compressor W-phase is too high
To Next Page
Loading...
