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Check outdoor P.C. board.
Defect → Replace
Correct connector.
Sensor error → Replace
Remove and improve
the cause of overload.
Repair defective position.
Replace defective part.
Repair defective position.
Recharge refrigerant.
Does an abnormal overload happen?
Is PMV under correct conditions?
Is connection of CN603 correct?
Is resistance value of TD sensor correct?
Is there gas leak?
Is there refrigerant shortage?
NO
YES
NO
YES
YES
NO
NO
YES
Confirm power supply
construction, etc.
Check outdoor P.C. board.
Defect → Replace
Is AC mains voltage correct?
198 to 264V
NO
YES
Check
code
[P03]
[P04]
[P05]
Outdoor
LED display
<Display 1> <Display 2>
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ll
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<Display 1> <Display 2>
ll
ll
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<Display 1> <Display 2>
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¡
l
¡ ¥
ll
¡
l
¡¡
<Display 1> <Display 2>
¡
l
¡
l
¡ ¥
ll
¡ ¥
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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. 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.
Power supply error (Vdc), High pressure protective operation, Case thermostat
operation
[Case thermostat operation] → Refer to [H04] column.
[Power supply error] → Refer to [P05] column.
[High pressure protective operation] → Refer to [P20] column.
[Power supply error]
<In case of SP80>