LG Multi V 5 - Page 104

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_TROUBLE SHOOTING GUIDE BOOK __
LGE Internal
Use Only
2. Heating
ITR (Cooling / Heating / Automatic)
2. Heating
• If the system is in operation before entering the heating test operation, "IDU / STOP" is displayed,
then the indoor unit is turned off and the FDD operation is entered. please enter the total amount
of refrigerant accurately before entering mode.
■ The Display of Results
Judgment Code Display
ITR(Cooling)
IDU EEV
OK 5
- Cn
NG 5
- C1
Impossible to Judge 5
- CF
Refrigerant
More than standard ex) 20%
Less than standard ex) -15%
Don't Adjustment required 00
Impossible to Judge 3
- CF
ITR(Heating)
IDU EEV
OK 6
- Cn
NG 6
- C1
Impossible to Judge 6
- CF
Outdoor
Main EEV
OK 7
- Cn
NG 7
- C1
Impossible to Judge 7
- CF
Refrigerant
More than standard ex) 20%
Less than standard ex) -15%
Don't Adjustment required 00
Impossible to Judge 3
- CF
· Ask an authorized technician to setting a function.
· Guaranteed temperature range.
- IDU : 18~32℃ [64.4~89.6℉] / ODU : 0~43℃ [32~109.4℉]
· In case the function is not used, set the dip S/W oFF and reset the power.
· If the indoor unit error occurs, indoor unit operate in fan mode. the indoor unit number that oc-
curred an error is not displayed.
· Fd3 and Fd4 (refrigerant amount check) is function to judge the system's refrigerant automatically
through the system operation. For details, refer to the service manual.
Basic Part
Multi V 5
Intorduction
Trouble Shooting
Function Control
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