Toshiba RAV-SM454MUT-E, RAV-SM404MUT-TR, RAV-SM1404BT-E, RAV-SM1104BT-E P10 error, F10 error

[P10 error]

Is connection of

float switch connector NO (Indoor control board CN34)

normal?

YES

NO YES

Correct connection

of connector.

Does float switch work?			Is circuit wiring normal?
YES				NO
		NO	Check and correct wiring
Does drain pump work?			and wire circuit.
YES
				NO	Are connector pins 1 and 3	NO
		Is power of
					at drain pump unit side shorted
	drain pump turned on? ∗
					(Resistance value 0)?
		YES			YES
					Replace drain pump
Check the drain pipe, etc.
					and indoor P.C. board
					(MCC-1402).

Replace drain pump.	Check indoor P.C. board
	(MCC-1402).
Check wiring.
	Defect → Replace

∗Check that voltage of 1 – 3 pin of CN068 on the indoor P.C. board is 220–240V.

[F10 error]

Is connection of TAsensor connector	NO
(indoor P.C. board CN104) nornal?
YES
	NO

Are characteristics of TA sensor resistance value normal?

YES

∗Refer to Characteristics-1.

Connect connector

of connector.

Replace TA sensor.

Check indoor P.C. board (MCC-1402).

Defective → Replace

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