LG LCN340CP Service Manual - Page 44

Troubleshooting CH32, CH33

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Troubleshooting Guide Troubleshooting CH32, CH33 Display code 32 Title D-pipe (Inverter) temp. high (105°C(221°F) ) D-pipe (Constant) 33 temp. high (105°C(221°F) ) Cause of error • Discharge sensor (Inverter) temp. high • Discharge sensor (Cons.) temp. high 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. 105°C (221°F) 95°C (203°F) 90°C (194°F) COMP OFF LEV OPEN/Hz down LEV OPEN/Hz down NORMAL Inverter 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. 105°C (221°F) 90°C (194°F) 80°C (176°F) COMP OFF LEV OPEN LEV OPEN NORMAL Constant • 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) 44 Ceiling Cassette Air Conditioner

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44
Ceiling Cassette Air Conditioner
Troubleshooting Guide
Troubleshooting CH32, CH33
32
33
D-pipe (Inverter)
temp. high
(105
°
C(221
°
F)
)
D-pipe (Constant)
temp. high
(105
°
C(221
°
F)
)
•
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)
90
°
C
(194
°
F)
80
°
C
(176
°
F)
95
°
C
(203
°
F)
Inverter
Constant
105
°
C
(221
°
F)
105
°
C
(221
°
F)
COMP OFF
COMP OFF
LEV OPEN
LEV OPEN
NORMAL
NORMAL
LEV OPEN/Hz down
LEV OPEN/Hz down
90
°
C
(194
°
F)