Self Diagnosis Function - ElectrIQ eiQ-CRFC18K Instruction And Installation Manual

SELF DIAGNOSIS FUNCTION

Table 1: Failure code list of indoor unit
Fault Description
Three-phase power phase sequence fault
Indoor and outdoor unit communication failure
Temperature sensor (T1) fault
Pipe temperature sensor in the evaporator (T2) fault
Pipe temperature sensor in the evaporator (T2B) fault
Outdoor unit failure
The indoor unit EEPROM fault
Water over protection
Indoor unit with line controller communication failure
Note: The flash frequency for each of the above indicator is 2.5Hz, slow flashing frequency is 1Hz
Table 2: Parameter table for spot inspection of outdoor unit
The digital tube display the indoor unit amount connected and communicated with during standby
The digital tube displays the frequency value during operation of compressor; the digital tube
displays"dF" during defrosting;
Spot check
Content
NO.
1 Indoor unit capacity
2 Indoor unit capacity demand
3 Indoor demand after T4 amendment
4 Indoor demand after T2 amendment
5 Indoor room temperature (T1)
temperature
Indoor coil middle temperature (T2)
6
temperature
Indoor coil outlet temperature (T2B)
7
temperature
Outdoor unit condenser outlet (T3)
8
temperature
9 Outdoor temperature (T4) temperature
Compressor top temperature (T5)
10
temperature (maximum 99℃)
4LED fault indication
Timing lights flash
Running lights flash
Running lights flash
Running lights flash
Warning lights flash slowly
Defrost lights flash slowly
Warning lights flash
Spot check
NO.
11
12
13
41
Digital display Wired remote display
E0 E0
E1 E1
E2 E2
E3 E3
E4 E4
E5 E5
E7 E7
EE EE
E9 E9
Content
Opening of EXV
Running frequency of
compressor
Primary voltage/4