Toshiba RAV-SM456BT-E, RAV-SM406BT-TR, RAV-SM1406BT-E, RAV-SM1606BT-E Outline of judgment

Outline of judgment

When one of the following phenomena appears, an error of the power relay (RY01) is considered; therefore replace the P.C. board.

•The operation started from the remote controller.

→

•The fan stops immediately.

•The display on the remote controller disappears.

→

After approx. 1minute

30 seconds, "Under setting" is displayed.

→

The screen of the remote controller enters in STOP status.

The primary judgment to check whether a trouble occurred in the indoor unit or outdoor unit is carried out with the following method.

Method to judge the erroneous position by display panel of the indoor unit (lamp display of the wireless receiving part)

The indoor unit monitors the operating status of the air conditioner, and the blocked contents of self-diagnosis are displayed restricted to the following cases if a protective circuit works.

: Go off,

: Go on,

: Flash (0.5 sec.)

Lamp indication

Check code

Cause of trouble occurrence

Operation

Timer

Ready

—

Power supply OFF or miswiring between lamp indication unit and indoor unit

No indication at all

E01

Receiving error ⎫

⎫

⎬ Receiving unit

⎪

Miswiring or wire connection error

E02

Sending error ⎭

⎬

between receiving unit and indoor unit

⎪

E03

Communication stop

Operation

Timer

Ready

⎭

E08

Duplicated indoor unit No.

⎫

Setup error

⎬

Flash

E09

Duplicated master units of remote controller ⎭

E10

Communication error between CPUs on indoor unit P.C. board

E18

Wire connection error between indoor units, Indoor power OFF

(Communication stop between indoor header and follower)

Operation

Timer

Ready

E04

Miswiring between indoor unit and outdoor unit or connection erorr

(Communication stop between indoor and outdoor units)

Flash

Operation

Timer

Ready

P10

Overflow was detected.

⎫

⎪

⎬ Protective device of indoor unit worked.

P12

Indoor DC fan error

⎪

Alternate flash

⎭

P03

Outdoor unit discharge temp. error

⎫

Protective device of

∗1

⎬

P04

Outdoor high pressure system error

outdoor unit worked.

⎭

P05

Negative phase detection error

⎫

⎪

P07

Heat sink overheat error

Outdoor unit error

⎬

Gas leak detection error

⎪

Operation

Timer

Ready

P15

⎭

P19

4-way valve system error (Indoor or outdoor unit judged.)

P20

Outdoor unit high pressure protection

Alternate flash

P22

Outdoor unit: Outdoor unit error

⎫

⎬⎪

Protective device of

P26

Outdoor unit: Inverter Idc operation

∗1

⎪

outdoor unit worked.

P29

Outdoor unit: Position detection error

⎭

P31

Stopped because of error of other indoor unit in a group

(Check codes of E03/L03/L07/L08)

∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.

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