Toshiba RAV-SM560BT-E - Manual (Page 84)

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84
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[P04 error]/[21 error]
* Refer to Characteristics-3 and 4.
* For RAV-SM560AT-E, replace control P.C. board.
Is high-voltage
protective operation by
TE sensor normal?
Is connection of cabling
connector normal?
Do not TD and TO sensors
come off the detection part?
Is connection of
connector normal?
Correct connection of
cabling connector.
Check TE sensor.
Defect Replace
Correct connection of
connector.
Check TE, TC, TS sensors.
Replace electron expansion valve.
Replace TD, TO,
and TC sensors.
Check CDB.
Defect Replace
Does cooling outdoor fan
normally operate?
Does PMV normally operate?
Is fan motor normal? Replace fan motor.
Correct coming-off.
Are characteristics of
TD, TO, TC sensor resistance
values normal?
Check charged refrigerant amount.
Check liquid/gas valves.
Check abnormal overload.
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES