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Correct wiring.
Replace outdoor P.C. board.
Check outdoor P.C. board.
Defect → Replace
NO
NO
The same error does not occur in
operation without compressor lead.
Check compressor. (Rear short, etc.)
Defect → Replace
Is there no problem on connection
of compressor lead or reactor?
(Check referring to Wiring diagram.)
YES
YES
Check outdoor P.C. board.
Defect → Replace
Replace fan motor.
Check wiring construction.
Ask repair of power supply.
YES
NO
Is there no problem on power supply voltage?
208/230V ± 10V
Does the fan rotate without trouble when rotating
shaft of fan motor with hands during power-OFF?
Is there no problem on coil resistance of fan motor?
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
CODE
No.
[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 SW804 of Dip switch 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 pushing SW801 for 1 second
again or 2 minutes passed, the fan stops.
2) After check, turn off all Dip switch
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 negative phase of compressor or wire
coming-off.