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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
code
[P22]
Outdoor
LED display
<Display 1> <Display 2>
¡
l
¡ ¥
¡ ¥
ll
¡ ¥
¡¡
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[Fan system error]
[Short-circuit of compressor drive element]
<Display 1> <Display 2>
¡ ¥
¡
l
¡ ¥
l
¥
¡ ¥
¡¡
<Display 1> <Display 2>
l
¥
¡ ¥
¡ ¥
l
¥
¡ ¥
¡¡
<Display 1> <Display 2>
¡
l
¡ ¥
¡
l
l
¥
¡ ¥
¡¡
[P26]
[P29]
—
No code
[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.
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.
Outdoor fan single operation
ON
1234
SW804 SW801
Push
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?
(198 to 264V)
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