TCL ITCA-60CHRA/DV3I, Техническое руководство, Страница: 99 / 113

DC Inverter Air
Evaporator tube
E2 26
The temperature of the indoor tube is higher than the set value
temperature sensor when cooling mode.
Condenser tube
E3 10
The temperature of the indoor tube is higher than the set value
temperature sensor when heating mode.
System fault E4 23 The tube temperature is abnormal in cooling or heating
indoor fan fault E6
21
、
28
Indoor fan stop or run abnormally
Outdoor temperature
E7 9 Open circuit or short circuit of outdoor room temperature sensor
sensor fault
Exhaust temperature
E8 11
Open circuit or short circuit of outdoor exhaust gas temperature
sensor sensor
Variable frequency drive
E9 14
、
30 The driver module protect happen three times in 30 minutes.
module fault
Outdoor fan fault EF 16
、
20 Outdoor DC fan motor stop or run abnormally
Current sensor fault EA 13 System can't collect current data normally.
Indoor EEPROM fault EE 27 EEPROM data receive failed
Outdoor EEPROM fault EE 19
PCB can't collect EEPROM data normally.
Compressor housing top
EP 8
The temperature of compressor housing top is more high or
switch fault temperature switch fault
Voltage sensor fault EU 12 System can't collect current voltage data normally.
Back gas temperature
EH 18
Open circuit or short circuit of outdoor exhaust gas temperature
sensor sensor
power off Instantly 55 Instant power off
compressor input voltage
34 Compressor input voltage lack of phase
lost phase
High pressure protect P3 24 High pressure protect
Model matching error 29 Capacity matching error
P1: Protection shutdown when voltage is higher than 275V or lower than 160V
Treatment Method: (voltage detection circuit in the inverter module board)
1. Use the multi‐meter to test whether the power supply between Phases A, B and C and Neutral Line is among
180V‐260V;
2. Whether the module communication line is reliably connected with the communication interface of main
control panel;
3. Whether the power supply module is reliably connected with filter boards L and N;
4. Replace the inverter module board;
5. Replace the motherboard of outdoor unit
P4: Inverter Compressor Exhaust High Temperature Protection
Treatment Method:
1.
Test whether the compressor exhaust temperature is normal (below 115°);
2.
If it is normal, please test whether the resistance of exhaust temperature sensor is consistent
with that in attached page (Annex 4);
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