Trouble shooting 58
OUTDOOR UNIT Error Method:
HIgh Pressure Protection 2
Indicate or Display:
Detective Actuators:
Detective details:
Forecast of Cause :
1. 3-way valve not opened 2. Outdoor unit fan operation defective, foreign matter at heat
exchanger, excessive ambient temperature rise 3. Check valve clogged
4. EEV defective, strainer clogged 5. Solenoid valve defective
6. High pressure switch 2 defective 7. Refrigerant overcharged
High pressure switch 2
"Protection stop by "high pressure switch 2 operated during compressor 2
operation"" generated 3 times within 60 minutes
EEV operation check
Check of strainers before and after EEV
Refer to "Service Parts Information 14, 15, 16".
Check Point 4 : Check the EEV, strainer (indoorunit)
No foreign matter in air passage?
Heat exchange fins clogged
Outdoor unit fan motor check
Ambient temperature not raised by effect of other heat sources?
Discharged air not sucked in?
Check Point 2 : Check the outdoor unit fan operation,
heat exchanger, ambient temperature
High pressure switch 2 characteristics check
* For the characteristics of the high pressure switch 2, refer to the "Service
Parts Information 21".
Check Point 6 : High pressure switch 2 check
Check Point 7 : Refrigerant amount check
Refrigerant charged amount check
Check Point 5 : Solenoid valve (SV1, SV2) check
Check Point 3-2 : Check valve check
Solenoid valve operation check
Refer to "Service Parts Information 17".
Check if check valve (oilseparetor (out) of compressor 2)
is not clogged.
Check Point 3-1 : Check valve check
Check if check valve (parallel with EEV1) not clogged.
Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
Outdoor Unit : E. A4. 3
Error Code : A4
04-66
<Cooling operation>
<Heating operation>
Check Point 1 : Check if 3-way valve(liquid side) is open.
If the 3-way valve(liquid side) was closed, open the
3-way valve(liquid side) and check operation.
Check Point 1 : Check if 3-way valve(gas side) is open.
If the 3-way valve(gas side) was closed, open the
3-way valve(gas side) and check operation.
OK
OK
OK
OK
OK
OK
OK
OK
Summary of Contents for AIRSTAGE V-II
Page 2: ......
Page 6: ...1 TEST RUN ...
Page 7: ......
Page 22: ...2 OUTDOOR UNIT OPERATION CONTROL ...
Page 23: ......
Page 39: ...3 INDOOR UNIT OPERATION ...
Page 40: ......
Page 59: ...4 TROUBLE SHOOTING ...
Page 60: ......
Page 187: ...5 APPENDING DATA UNIT ...
Page 188: ......
Page 193: ...MODELS AUXB07 AUXB09 AUXB12 AUXB14 AUXB18 AUXB24 05 05 5 2 WIRING DIAGRAM 5 2 1 Indoor Unit ...
Page 194: ...MODELS AUXD18 AUXD24 AUXA30 AUXA36 AUXA45 AUXA54 05 06 ...
Page 195: ...MODELS ARXB07 ARXB09 ARXB12 ARXB14 ARXB18 05 07 ...
Page 196: ...MODEL ARXB24 MODELS ARXB30 ARXB36 05 08 ...
Page 197: ...MODEL ARXB45 05 09 ...
Page 198: ...MODEL ARXA24 MODELS ARXA30 ARXA36 ARXA45 05 10 ...
Page 199: ...MODELS ARXC36 ARXC45 ARXC60 MODELS ARXC72 ARXC90 05 11 ...
Page 200: ...MODELS ARXD07 ARXD09 ARXD12 ARXD14 ARXD18 ARXD24 05 11 1 ...
Page 201: ...MODELS AB A12 AB A14 AB A18 AB A24 05 12 ...
Page 202: ...MODELS AB A12LBTH AB A14LBTH 05 12 1 AB A18LBTH AB A24LBTH ...
Page 203: ...05 13 MODELS AB A30 AB A36 AB A45 AB A54 ...
Page 204: ...05 13 1 MODELS AB A30LBTH AB A36LBTH AB A45LBTH AB A54LBTH ...
Page 205: ...MODELS AS A07 AS A09 AS A12 AS A14 05 14 ...
Page 206: ...MODELS AS E07 AS E09 AS E12 AS E14 05 15 ...
Page 207: ...MODELS AS A18 AS A24 AS A30 05 16 ...
Page 208: ...05 16 1 MODELS AS A18LACH AS A24LACH AS A30LACH ...
Page 216: ...6 DISASSEMBLY PROCESS ...
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