You can perform fault diagnosis of the outdoor unit with the LEDs on the P.C. board of the outdoor unit in addition to check codes displayed on the wired remote controller of the indoor unit.

Use the LEDs and check codes for various checks. Details of check codes displayed on the wired remote controller of the indoor unit are described in the Installation Manual of the indoor unit.

LED indication and code checking

 

Cycle control P.C. board

 

 

 

 

 

 

LED indication

 

LED indication

 

Cause

 

 

 

 

 

 

 

D800

D801

D802

D803

 

 

 

 

 

 

 

 

¡

l

l

l

Heat exchanger sensor (TE) error

 

 

 

 

 

 

 

l

l

¡

l

Suction sensor (TS) error

 

 

 

 

 

 

 

¡

¡

l

l

Discharge sensor (TD) error

 

 

 

 

 

 

D800 ¡: Red

l

¡

l

¡

Thermostat for compressor activated.

 

 

 

 

 

D801 ¡ : Yellow

l

¡

l

l

Outdoor temperature sensor (TO) error

D802 ¡ : Yellow

 

 

 

 

 

¡

¡

¡

l

DC outdoor fan error (Upper side)

D803 ¡ : Yellow

 

 

 

 

 

 

¡

¡

¡

¡

DC outdoor fan error (Lower side)

 

 

 

 

 

 

 

¡

l

l

¡

Communication error between IPDU (Abnormal stop)

 

 

 

 

 

 

 

¥

¥

¥

l

Comp. case thermo. operate – Serial signal error

 

 

 

 

 

 

 

l

¡

¡

l

Discharge temp. error

 

 

 

 

 

 

 

¡

¡

l

¡

EEPROM error

 

 

 

 

 

 

 

l

l

¡

¡

Communication error between IPDU (No abnormal stop)

 

 

 

 

 

 

 

¥

l

l

l

G – Tr short – circuit protection

 

 

 

 

 

 

¥: Rapid flash

l

¥

l

l

Detect circuit error

l: Go off

 

 

 

 

 

¥

¥

l

l

Current sensor error

¡: Go on

 

 

 

 

 

l

l

¥

l

Comp. lock error

 

 

 

 

 

 

 

 

¥

l

¥

l

Comp. break down

 

 

 

 

 

 

 

l

¡

l

¡

High-pressure release operation

 

 

 

 

 

 

 

¥

¥

¥

l

TH sensor error

 

 

 

 

 

 

– 94 –

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Image 94
Toshiba RAV-SM1603ATZ-E, RAV-SM1603DT-A, RAV-SM1603ATZG-E, RAV-SM1403DT-A service manual