Toshiba RAV-SM2244AT7Z, RAV-SM2804AT8ZG-E, RAV-SM2244AT8ZG-E F31 Display 1 Display 2 Eeprom error

Check	Outdoor			Check and troubleshooting
code	LED display		(Item without special mention Indicates part of outdoor unit.)
[F23]	<Display 1> <Display 2>		[PS sensor error]
	¡	¡
	¡	¥	Is connector of		NO
	l	l				Correct connection of connector.
			Ps sensor correctly connected?
	l	¥
			YES
	¡	¥		Connector: CN606, White
	¡	¥

Are the output current characteristics		NO	Sensor error
of Ps sensor normal?
YES
	∗ ￿ Pressure by pressure gauge (Check joint)
	￿ Pressure display on LED display
	￿ Output power of I/F (CDB) P.C. board
	If ￿ and ￿, ￿ and ￿ are different,
	an error of the pressure sensor is considered.
	If ￿ and ￿ are different, check I/F P.C. board.

Does not refrigerant bypass	NO
		Check compressor.
from discharge port to suction port
of 4-way valve?
YES
		Check 4-way valve.

[F31] <Display 1> <Display 2> [EEPROM error]

¡ ¡

¡¥

l	¥	Check outdoor P.C. board (MCC-1599).
l	¥
		Defect → Replace
¡	¥

¡¥

[H01] <Display 1> <Display 2> [Compressor break down]

¡	¡
¡	l	Is power supply voltage normal?	NO
l	l			Correct power supply line.
		AC342 to 457V
¡	l
		YES
l	l
l	¥
		Is wire connection normal?	NO
		Compressor lead		Check wire connection
		(Board side, Compressor side),		and correct it.
		Reactor lead, Power supply lead
		YES
			YES
		Is it not abnormal overload?		Correct and clear the cause.
		NO
			Check outdoor P.C. board (MCC-1596).
				Defect → Replace

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