Toshiba RAV-SM560XT-E, RAV-SM800XT-E CN301 CN300, Troubleshooting for Each Check Code 1A error

10-3. Troubleshooting for Each Check Code

[1A error]

Are connections of CN301 and
CN300 of CDB correct?
YES
Does the fan rotate without trouble	NO
when handling the fan with hands under condition
of removing CN301 and CN300 from CDB?
YES
The status that the resistance values
between leads below are 50 to 80 Ω
for 40 W motor (ICF-140-43) and 25 to 55 Ω	NO
for 60 W motor (ICF-140-63-1) is normal.
Between 1 (Red lead) and 2 (White lead)
Between 2 (White lead) and 3 (Black lead)
Between 3 (Black lead) and 1 (Red lead)
of motor winding of connector (CN301)
YES
The status that there is
5k to 20kΩ resistance values between	NO
1 (Yellow lead) and 4 (Pink lead)
of motor position detection of connector
(CN300, CN302) is normal.
YES

CN301

CN300

•For RAV-SM560AT-E, CN300 changes to CN301, and CN301 to CN300, respectively.

Normal fan motor

(CDB error)

Defective fan motor

NOTE :

However, GND circuit error inside of the motor is rarely detected even if the above check is carried out. When the circuit does not become normal even if P.C. board has been replaced, replace outdoor fan motor.

	RAV-SM560AT-E	RAV-SM800AT-E
Objective P.C. board	Control P.C. board	CDB P.C. board
Fan motor winding	CN300	CN301
Motor position detection	CN301	CN300

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