LG ATNH126ELFB Service Manual page 83

Troubleshooting Guide
Troubleshooting CH32, CH33
Display
Title
code
D-pipe (Inverter)
32 temp. high
(105°C )
D-pipe (Constant)
temp. high
33
(105°C )
COMP OFF
105°C
LEV OPEN/Hz down
95°C
LEV OPEN/Hz down
90°C
NORMAL
AUUW4860 / AUUW6060
Check Point
• CH 32
1. Check the install condition for over load.
2. Check the SVC V/V open.
3. Check the leakage of refrigerant.
128 Synchro Air Conditioner
Cause of error
• Discharge sensor
(Inverter) temp. high
• Discharge sensor
(Cons.) temp. high
• CH 33
1. Check the install condition for over load.
2. Check the SVC V/V open.
3. Check the leakage of refrigerant.
4. Check the constant compressor. (same with CH21)
Check point & Normal condition
• Check the discharge pipe sensor for INV.
• Check the install condition for over load.
• Check the leakage of refrigerant.
• Check the SVC V/V open.
• Check the discharge pipe sensor for Cons.
• Check the install condition for over load.
• Check the leakage of refrigerant.
• Check the SVC V/V open.
COMP OFF
115°C
LEV OPEN
100°C
LEV OPEN
95°C
NORMAL
AUUH488B/AUUH7280/AUUH10080