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Is CN603 connection normal?
Is resistance value of TD sensor normal?
Correct connector.
Sensor error → Replace
Check outdoor P.C. board.
Defect → Replace
YES
NO
Is CN601 connection normal?
Is resistance value of TE sensor normal?
Correct connector.
Sensor error → Replace
Check outdoor P.C. board.
Defect → Replace
YES
NO
Is CN604 connection normal?
Is resistance value of TL sensor normal?
Correct connector.
Sensor error → Replace
Check outdoor P.C. board.
Defect → Replace
YES
NO
CODE
No.
[F04]
[F06]
[F07]
Outdoor
LED display
<Display 1> <Display 2>
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<Display 1> <Display 2>
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<Display 1> <Display 2>
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<Display 1> <Display 2>
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z
z
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<Display 1> <Display 2>
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Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[Discharge temp. sensor (TD) error]
• There is a possibility that it is one of the following errors.
Confirm LED on outdoor P.C. board to judge which error it is.
Heat exchanger temp. sensor (TE) error, Heat exchanger temp. sensor (TL) error,
Suction temp. sensor (TS) error, Miswiring of heat exchanger sensor (TE, TS)
Heat exchanger temp. sensor (TE) error]
[Heat exchanger temp. sensor (TL) error] → Refer to [F07] column.
[Suction temp. sensor (TS) error] → Refer to [F12] column.
[Miswiring of heat exchanger sensor (TE, TS)] → Refer to [F15] column.
[Heat exchanger temp. sensor (TL) error]
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