Toshiba RAV-SP404ATZG-E, RAV-SP804ATZG-E, RAV-SP804ATZ-E, RAV-SP804AT-E In case of SP40 to

					<In case of SP40 to 56>
Check	APPLICATION CONTROL KIT		Check / Countermeasures
code	LED display	(Part without special mention indicates a part of the outdoor unit.)
[P19]	—	[4-way reversal error]
		Does 4-way valve work correctly?			NO
		(Check pipe temperature, etc.
		during cooling/heating operation.)
		YES
					Is coil of 4-way valve
				electrified during heating mode?
			NO				YES
			Check outdoor P.C. board.			Check 4-way valve.
			Defect →	Replace		Defect → Replace
					NO
		Is flow of refrigerant by				Check PMV.
		PMV under correct conditions?				Defect → Replace
		YES

Check temperature sensors.

TE sensor CN600, TS sensor CN603

Indoor TC sensor

Defective → Correct or replace

∗In case of SP40 to 56, the coil of 4-way valve is electrified during cooling cycling.

∗In cooling operation, [P19] error may be displayed when the refrigerant pressure rises high abnormally. In this case, remove the cause of pressure rising and then diagnose it again.

[P22]

D01

D02

D03

D04

[Outdoor fan system error]

(Red)

(Yellow) (Yellow) (Yellow)

NO

¡

¡

¡

l

Is connection of connector

Correct connection of connector.

CN300 correct?

YES

After pulling out the connector

of the fan motor CN300, rotate its shaft by hands.

NO

Can it rotate smoothly?

Fan motor

Is the fan motor coil resistance within the range described below?

exchange

Between red and white lead

: 18 to 30Ω

Between white and black lead : 18 to 30Ω

Between black and red lead

: 18 to 30Ω

YES

Check outdoor P.C. board.

Defective →

Replace

[P26]

D01

D02

D03

D04

[Short-circuit of compressor driving device]

(Red)

(Yellow) (Yellow) (Yellow)

Is AC mains voltage correct?

NO

¥

l

l

l

Correct power line.

198 to 264V

YES

Is there any problem on connection

YES

of compressor lead or reactor?

Correct wiring.

(Check connection referring to the wiring diagram.)

NO

After disconnection of the compressor leads from

NO

Replace

P.C. board, the air conditioner operates in heating mode.

outdoor P.C. board.

Does the fan motor run?

YES

Check compressor. (Rare short, etc.)

Defective →

Replace

[P29]

D01

D02

D03

D04

[Position detection circuit error]

(Red)

(Yellow) (Yellow) (Yellow)

l

¥

l

l

Check outdoor P.C. board.

Defective →

Replace

LED display legend: l Go off, ¡ Go on, ¥ Flash (5Hz)

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