Toshiba RAV-SM1100AT-E, RAV-SM1400AT-E, RAV-SM1101BT-E, RAV-SM1401BT-E P04 error/21 error

[P04 error]/[21 error]

Is high-voltage	NO
protective operation by
TE sensor normal?
YES

Is connection of cabling		NO
connector normal?
	YES

Does cooling outdoor fan	NO
normally operate?
YES

Correct connection of cabling connector.

Check TE sensor. Defect Replace

		NO
Is connection of			Correct connection of
connector normal?			connector.
	YES	NO
Is fan motor normal?			Replace fan motor.

YES

NO

Does PMV normally operate?

YES

Do not TD and TO sensors	NO
		Correct coming-off.
come off the detection part?

Check TE, TC, TS sensors.	YES
Replace electron expansion valve.

Are characteristics of	NO
		Replace TD, TO,
TD, TO, TC sensor resistance
		and TC sensors.
values normal?

YES

* Refer to Characteristics-3 and 4.

Check charged refrigerant amount.
	Check CDB.
Check liquid/gas valves.
Check abnormal overload.	Defect Replace

* For RAV-SM560AT-E, replace control P.C. board.

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