Error Codes Table
Diagnosis | Abnormality / Protection control | Abnormality | Emergency | Primary location to verify |
display |
| Judgement | operation |
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H11 | Indoor / outdoor abnormal | > 1 min after starting | Indoor fan operation | • Internal / external cable connections |
| communication | operation | only | • Indoor / Outdoor PCB |
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H12 | Connection capability rank abnormal | — | — | — |
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H14 | Indoor intake air temperature sensor | Continue for 5 sec. | — | • Intake air temperature sensor |
| abnormality |
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| (defective or disconnected) |
H15 | Outdoor compressor temperature sensor | Continue for 5 sec. | — | • Compressor temperature sensor |
| abnormality |
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| (defective or disconnected) |
H16 | Outdoor Current Transformer open | — | — | • Outdoor PCB |
| circuit |
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| • IPM (Power transistor) module |
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H19 | Indoor fan motor merchanism lock | — | — | • Indoor PCB |
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| • Fan motor |
H21 | Indoor float switch operation abnormal | — | — | — |
H23 | Indoor heat exchanger temperature | Continue for 5 sec. | O | • Heat exchanger temperature sensor |
| sensor abnormality |
| (Cooling only) | (defective or disconnected) |
H27 | Outdoor air temperature sensor | Continue for 5 sec. | O | • Outdoor temperature sensor |
| abnormality |
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| (defective or disconnected) |
H28 | Outdoor heat exchanger temperature | Continue for 5 sec. | O | • Outdoor heat exchanger |
| sensor abnormality |
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| temperature sensor (defective or |
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| disconnected) |
H30 | Discharge temperature sensor | Continue for 5 sec. | — | • Discharge temperature sensor |
| abnormality |
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H33 | Indoor/Outdoor wrong connection | — | — | • Indoor/Outdoor supply voltage |
H35 | Indoor drain water adverse current | — | — | — |
| abnormal |
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H38 | Indoor/Outdoor mismatch (brand code) | — | — | — |
H97 | Outdoor Fan Motor lock abnormality | — | — | • Outdoor PCB |
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| • Outdoor Fan Motor |
H98 | Indoor high pressure protection | — | — | • Air filter dirty |
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| • Air circulation short circuit |
H99 | Indoor heat exchanger | — | — | • Insufficient refrigerant |
| protection |
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| • Air filter dirty |
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F11 | Cooling / Heating cycle changeover | 4 times occurance | — | • |
| abnormality | within 30 minutes |
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F90 | PFC control | 4 times occurance | — | • Voltage at PFC |
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| within 10 minutes |
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F91 | Refrigeration cycle abnormality | 7 times occurance | — | • No refrigerant |
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| continuously |
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F93 | Outdoor compressor abnormal revolution | 4 times occurance | — | • Outdoor compressor |
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| within 20 minutes |
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F95 | Cool high pressure protection | 4 times occurance | — | • Outdoor refrigerant circuit |
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| within 20 minutes |
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F96 | IPM (power transistor) overheating | — | — | • Excess refrigerant |
| protection |
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| • Improper heat radiation |
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| • IPM (Power transistor) |
F97 | Outdoor compressor overheating | 4 times occurance | — | • Insufficient refrigerant |
| protection | within 20 minutes |
| • Compressor |
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F98 | Total running current protection | 3 times occurance | — | • Excess refrigerant |
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| within 20 minutes |
| • Improper heat radiation |
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F99 | Outdoor Direct Current (DC) peak | 7 times occurance | — | • Outdoor PCB |
| detection | continuously |
| • IPM (Power transistor) |
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| • Compressor |
Note:
“O” - Frequency measured and fan speed fixed.
The memory data of error code is erased when the power supply is cut off, or press the Auto Switch until “beep” sound heard following by pressing the “RESET” button at Remote Control.
Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error Codes Table) by using Remote Control or Auto Switch at indoor unit. However, the Remote Control signal receiving sound is changed from one “beep” to four “beep” sounds.
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