E08, E12, E15, E09 Duplicated master, E10

Check code	Check code name	Cause of operation

[E08]	Duplicated indoor addresses	Indoor addresses are duplicated.

Auxiliary code : Duplicated indoor address

Using a main remote controller (RBC-AMT21E), check the setup item codes (DN code) 12, 13, and 14. When there is no address duplication, check to the following flowchart.

Check code	Check code name			Cause of operation

[E12]	Automatic address start error		1.	When indoor automatic address started,
				other refrigerant circuit system was setting
				automatic address. (Sub code : 01)
			2.	When outdoor automatic address started,
				the indoor automatic address was being
				set. (Sub-code: 02)

Auxiliary code : 01: Communication between indoor and outdoor		02: Communication between outdoor units

Is cable connection to

communication line normal?

YES

Is not communication line connected

to the different outdoor unit?

Is indoor unit quantity connected

YES

Correct wire connection.

Are U1, U2, U3, and U4 connectors connected?

YES

Disconnect connector connection

of U1, U2, U3, and U4.

Turn on power of

outdoor unit again.

Set up address again.

(Refer to “Address setup procedure”.)

to outdoor unit correct?

Correct communication line.

Check code

Check code name

Cause of operation

YES

Set up indoor address again.

[E15]	No corresponding indoor unit	1. Communication line connection error
	during automatic address		between indoor and outdoor.
		2.	Indoor power system error
		3.	Noise from surrounding devices
		4.	Power failure
		5.	Indoor P.C. board error

Check code	Check code name		Cause of operation

[E09]	Duplicated master		Setup of master remote controller is dupli-
	remote controller		cated.

Are two remote controllers set up	YES
	YES	Correct setup of remote controllers as a master:
		Correct setup of remote controllers as a master:
as two master remote controllers?		a other. (Remote controller address connector)
NO
NO

Is communication line between indoor and outdoor normal?

YES

Is connection of CN40 connector

on indoor P.C. board correct?

YES

Correct communication line.

Correct connection of connector.

Check remote controller P.C. board.

Failure Replace

Check code			Check code name	Cause of operation

[E10]		Communication error		Indoor P.C. board error A’ssy failure
		in indoor P.C. board A’ssy


Is there any trouble on power line?			YES	Check power voltage on line.
				Check power voltage on line.
				Eliminate noise, etc.
				Eliminate noise, etc.
	NO
	NO

				Check indoor control P.C. board.
				Failure Replace

Is connection of CN01

connector on I/F P.C. board of header outdoor unit correct?

YES

Is there any connection

error of power wire?

Did a power failure occur?

Is there no noise source?

Set up address again

after resetting power supply.

YES

Correct connection of connector.

Correct power wire.

Set up address again after

resetting power supply.

Eliminate noise.

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Toshiba MMU-AP0091MH, MMU-AP0181MH, MMU-AP0151MH E08, E12, E15, E09 Duplicated master, E10

Models: MMU-AP0181MH MMU-AP0071MH MMU-AP0091MH MMU-AP0151MH MMU-AP0121MH

[E08]

Duplicated indoor addresses

Indoor addresses are duplicated.

[E12]

Automatic address start error

[E15]

during automatic address

[E09]

Duplicated master

remote controller

[E10]

in indoor P.C. board A’ssy

MMU-AP0181MH, MMU-AP0071MH, MMU-AP0091MH, MMU-AP0151MH, MMU-AP0121MH specifications