06-24
[ CHECK 2 ]
Forecast of Cause :
1. Valve is close 2. EEV, Solenoid Valve failure 3. Gas Leak, less 4. Discharge Thermistor failure
5. Outdoor Fan Operation failure 6. Outdoor Heat Exchanger clogged
Check Point 1 : Check if Gas Valve is open
p
If it is not open, open it and check the operation.
(If Liquid valve close, High pressure error.)
Check Point 3 : Check if gas leak or less gas
p
Measure Gas pressure, if there is a leak, correct it.
>>If recharging refrigerant, make sure to perform vacuuming and
recharge the specified amount.
Check Point 5 : Check Outdoor FAN, Heat Exchanger
p
Is there anything obstructing the air distribution circuit?
p
Is there any clogging of Outdoor Heat Exchanger?
p
Is the Fan rotating? (Check by hand and if it is locked, replac e the motor)
p
Check Outdoor Fan Motor
(PARTS INFORMATION 12)
>>If the Fan Motor is defective, replace it.
Check Point 4 : Check Discharge Thermistor 1
p
Isn’t it fallen off the holder?
p
Is there a cable pinched?
>>
Check characteristics of thermistor (Refer to Trouble shooting 23),
If defective, replace the thermistor
.
Check Point 2 : Check EEV, Solenoid Valve and Strainer
p
Is EEV (EEV2, Indoor unit EEV) open?
(PARTS INFORMATION 5,7)
(PARTS INFORMATION 6)
p
Is Liquid side Strainer open?
(PARTS INFORMATION 5)
p
Is Solenoid Valve (SV4 of Main Unit) open?
(PARTS INFORMATION 9)
p
Is Solenoid Valve (SV4 of Slave Unit) open?
(PARTS INFORMATION 9)
>>If EEV or Solenoid Valve or Strainer is defective, replace it.
OK
Check Point 1 : Check if Liquid Valve is open
p
If it is not open, open it and check the operation.
(If Gas valve close, High pressure error.)
OK
Check Point 2 : Check if EEV1, SV4 is open
p
Is EEV (EEV1) open?
If the service tool is connected, check if there is an
indoor unit that is extremely low heat exchanger
temperature.
(On heating, the refrigerant flows to the stopped
indoor unit as well.)
OK
OK
OK
OK
MPa MPa
< Cooling mode >
< Heating mode >
Summary of Contents for AB*A12
Page 6: ...1 TEST RUN ...
Page 13: ...2 FUNCTION OF PRINTED CIRCUIT BOARD ...
Page 58: ...3 INVERTER CONTROL ...
Page 62: ...4 OUTDOOR UNIT OPERATION CONTROL ...
Page 74: ...5 INDOOR UNIT OPERATION ...
Page 90: ...6 TROUBLE SHOOTING ...
Page 199: ...7 APPENDING DATA UNIT ...
Page 208: ...07 09 MODELS AU A20 AU A25 AU A30 ...
Page 209: ...07 10 MODELS AU A36 AU A45 AU A54 ...
Page 210: ...07 11 COMPACT DUCT TYPE MODELS ARXB07 ARXB09 ARXB12 ARXB14 ARXB18 ...
Page 211: ...07 12 MODEL ARXB25 MODELS ARXB30 ARXB36 ARXB45 LOW STATIC PRESSURE DUCT TYPE ...
Page 212: ...07 13 MODELS ARXA30 ARXA36 ARXA45 MODEL ARXA25 DUCT TYPE ...
Page 213: ...07 14 MODELS ARXC36 ARXC45 ARXC60 HIGH STATIC PRESSURE DUCT TYPE ...
Page 214: ...07 15 MODEL ARXC90 ...
Page 215: ...07 16 FLOOR CEILING TYPE MODELS AB A12 AB A14 AB A18 AB A24 ...
Page 216: ...07 17 CEILING TYPE MODELS AB A30 AB A36 AB A45 AB A54 ...
Page 217: ...07 18 COMPACT WALL MOUNTED TYPE Comfort model MODELS AS E07 AS E09 AS E12 AS E14 ...
Page 218: ...07 19 WALL MOUNTED TYPE MODELS AS A18 AS A24 AS A30 ...
Page 219: ...07 20 CEILING WALL TYPE MODELS AW A07 AW A09 AW A12 AW A14 AW A18 AW A24 AW A30 ...
Page 220: ...07 21 7 3 2 Outdoor Unit MODELS AJ A72LBTF AJ A90LBTF ...
Page 221: ...07 22 MODEL AJ 126LBTF ...
Page 222: ...07 23 MODELS AJ A72UBTF AJ A90UBTF ...
Page 223: ...07 24 MODEL AJ 126UBTF ...
Page 230: ...8 DISASSEMBLY ILLUSTRATION PARTS LIST ...
Page 232: ...Model AJ 126LBTF 104 111 100 101 107 112 103 105 102 110 106 08 02 ...
Page 233: ...Model AJ 126LBTF 151 150 155 156 154 152 161 158 157 160 159 153 08 03 ...
Page 238: ...Model AJ 126UBTF 100 101 107 105 102 110 106 08 08 104 111 112 ...
Page 243: ...Model AJ A90LBTF 104 111 100 101 107 112 103 105 102 110 106 AJ A72LBTF 08 13 ...
Page 244: ...151 150 155 156 154 152 161 158 157 160 159 153 08 14 Model AJ A90LBTF AJ A72LBTF ...
Page 249: ...Model AJ A90UBTF 100 101 107 105 102 110 106 AJ A72UBTF 08 19 104 111 112 ...
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