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| Cooling Mode |
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| Heating Mode |
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Condition of the air |
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conditioner | Low Pressure | High Pressure | Electric current | Low Pressure | High Pressure | Electric current |
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| during operation |
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| during operation |
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Insufficient refrigerant |
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(gas leakage) |
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Clogged capillary tube |
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or Strainer |
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Short circuit in the |
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indoor unit |
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Heat radiation |
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deficiency of the |
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outdoor unit |
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Inefficient compression |
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••Carry on the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.
63