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Correct wiring.
Replace outdoor P.C. board.
Check outdoor P.C. board.
Defect → Replace
YES
NO
Does the same error occur in
operation without compressor lead?
Check compressor. (Rear short, etc.)
Defect → Replace
Are connections of
compressor lead and reactor correct?
(Check referring to the Wiring diagram.)
NO
YES
Check outdoor P.C. board.
Defect → Replace
Replace fan motor.
Check wiring construction.
Ask repair of power supply.
YES
NO
Is AC mains voltage correct?
(198 to 264V)
Rotate shaft of the fan motor by hands
during power-OFF. Can it rotate smoothly?
Is coil resistance of fan motor correct?
Between red and white lead wire : 12 to 20Ω
Between white and black lead wire : 12 to 20Ω
Between black and red lead wire : 12 to 20Ω
YES
NO
Check
code
[P22]
[P26]
[P29]
—
No code
Outdoor
LED display
<Display 1> <Display 2>
¡
l
¡ ¥
¡ ¥
ll
¡ ¥
¡¡
<Display 1> <Display 2>
¡
l
¡ ¥
¡
l
l
¥
¡ ¥
¡¡
<Display 1> <Display 2>
¡ ¥
¡
l
¡ ¥
l
¥
¡ ¥
¡¡
<Display 1> <Display 2>
l
¥
¡ ¥
¡ ¥
l
¥
¡ ¥
¡¡
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[Fan system error]
Single operation check for outdoor fan
1) Set Dip switch of SW804 as the following figure and then push SW801 for
approx. 1 second to check single operation of outdoor fan.
Use this method to check which fan, upper or lower fan, has a trouble.
• When SW801 is pushed for 1 second
again or 2 minutes passed, the fan stops.
2) After check, turn off all Dip switch of
SW804.
[Short-circuit of compressor drive element]
ON
1234
SW804 SW801
Push
Outdoor fan single operation
[Position detection circuit error]
[Other error] Compressor disorder due to sudden change of load, etc.
∗ Although the display of outdoor LED outputs, the unit automatically restarts
and error is not determined.
∗ LED display also may output due to wire coming-off of compressor.
<In case of SP80>