Troubleshooting
The table below give indication about self diagnostic routine. Some of error code requires activities exclusively for Authorized Service Center.
Outdoor unit
If an error occurs during the operation, it is displayed on the outdoor unit PCB LED, both MAIN PCB and INVERTER PCB.
No. | Displayed PCB | Meaning | Remarks | Error Code | |
Assy | |||||
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| Normal operation |
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- | MAIN/INVERTER | (MAIN : Indoor↔Outdoor : Green ON) |
| - | |
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| (INVERTER : MAIN PCB↔INVERTER PCB : Green ON) |
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1 | MAIN | Unit quantity miss matching between indoor and | Check indoor quantity setting | E201 | |
outdoor. | in outdoor | ||||
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2 | MAIN/INVERTER | Abnormal state, no communication between Indoor and | Check electrical connection | E202 | |
Outdoor Main PCB | and setting | ||||
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3 | MAIN/INVERTER | 1min. Time out of communication error(Main↔Inverter) | Check electrical connection | E203 | |
and setting | |||||
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4 | MAIN | Outdoor temp sensor error | Check Outdoor sensor Open/ | E221 | |
Short | |||||
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5 | MAIN | Cond. temp sensor error | Check Cond. sensor Open/ | E231 | |
Short | |||||
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6 | MAIN | Discharge temp sensor error | Check Discharge sensor | E251 | |
Open/Short | |||||
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7 | MAIN | OLP Sensor Error | Check OLP sensor Open/Short | E320 | |
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8 | MAIN | Detection of Outdoor Freezing when Comp. Stop | Check Outdoor Cond. | E403 | |
9 | MAIN | Protection of Outdoor Overload when Comp. Stop | Check Comp. when it start | E404 | |
10 | MAIN | Discharge temperature of a compressor in an |
| E416 | |
outdoor unit is overheated. |
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| Heating operation is not available since the outdoor air | Heating | E440 | |
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| temperature is over 30 °C. | |||
11 | MAIN |
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Cooling operation is not available since the outdoor air | Cooling | E441 | |||
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| temperature is lower than | |||
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12 | MAIN/INVERTER | Outdoor unit BLDC Fan 1 or Fan 2 error | FAN1 error | E458 | |
FAN2 error | E475 | ||||
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13 | MAIN/INVERTER | Comp. Starting error |
| E461 | |
14 | MAIN | Primary Current Trip error |
| E462 | |
15 | MAIN | Over current trip / PFC over current error | Check OLP sensor | E463 | |
16 | MAIN/INVERTER | IPM (IGBT Module) Over Current(O.C) |
| E464 | |
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17 | MAIN/INVERTER | Comp. Over load error |
| E465 | |
18 | MAIN/INVERTER | Check AC Power or DC_Link | E466 | ||
voltage | |||||
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19 | MAIN/INVERTER | Comp. wire missing error | Check Comp. wire | E467 | |
20 | MAIN/INVERTER | Current sensor error | Check Outdoor Inverter PBA | E468 | |
21 | MAIN | Outdoor EEPROM error | Check Outdoor EEPROM data | E471 | |
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22 | MAIN/INVERTER | IPM (IGBT Module) or PFCM Temperature sensor Error | Check Outdoor Inverter PBA | E474 | |
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I06nstallation
ENGLISH-65
PAC MIRAGE