Toshiba RAV-SP1104AT8-E1 Service Manual page 62

Check Outdoor
code LED display
[P22] <Display 1> <Display 2>
[P26] <Display 1> <Display 2>
[P29] <Display 1> <Display 2>
— <Display 1> <Display 2>
No code
(Item without special mention Indicates part of outdoor unit.)
[Fan system error]
Is there no problem on power supply voltage?
(342 to 457V)
YES
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
Between white and black lead wire : 12 to 20Ω
Between black and red lead wire
NO
Replace fan motor.
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]
Is there no problem on connection
of compressor lead or reactor?
(Check referring to Wiring diagram.)
YES
The same error does not occur in
operation without compressor lead.
YES
[Position detection circuit error]
Check outdoor P.C. board (MCC-1596).
Defect → Replace
[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.
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Check and troubleshooting
NO
: 12 to 20Ω
: 12 to 20Ω
Check outdoor P .C. board (MCC-1597).
Outdoor fan single operation
NO
NO
Check compressor. (Rear short, etc.)
Check wiring construction.
Ask repair of power supply.
YES
Defect → Replace
SW804 SW801
ON
Push
1 2 3 4
Correct wiring.
Replace outdoor P.C. board.
Defect → Replace