LG FM21AH UE3 - Page 82

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Only for training and service purposes
LGE Internal Use Only
5. Trouble Shooting
LEV Openness
(Pulse)
COMP Frequency
(Hz)
Toff(105) °C
T1(90) °C
T2(95) °C
OFFNormal
OFF ControlNormal
Normal
Normal
D-Pipe temp.
32
33
D-pipe (Inverter)
temp. high
(105°C
)
D-pipe (Constant)
temp. high
(105°C
)
• Discharge sensor
(Inverter) temp. high
• Discharge sensor
(Cons.) temp. high
• 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.
Display
code
Title Cause of error Check point & Normal condition
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.
• 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)