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Digital Inverter
13
TROUBLESHOOTING
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
LED indication
D800
: Red
D801
: Yellow
D802
: Yellow
D803
: Yellow
: Rapid flash
●
: Go off
: Go on
Cycle control P.C. board
LED indication
D800 D801 D802 D803
●
●
●
Heat exchanger sensor (TE) error
●
●
●
Suction sensor (TS) error
●
●
Discharge sensor (TD) error
●
●
Thermostat for compressor activated.
●
●
●
Outdoor temperature sensor (TO) error
●
DC outdoor fan error (Upper side)
DC outdoor fan error (Lower side)
●
●
Communication error between IPDU (Abnormal stop)
●
●
Comp. case thermo. operate – Serial signal error
●
●
Discharge temp. error
●
EEPROM error
●
●
Communication error between IPDU (No abnormal stop)
●
●
●
G – Tr short – circuit protection
●
●
●
Detect circuit error
●
●
Current sensor error
●
●
●
Comp. lock error
●
●
Comp. break down
– 22 –
Outdoor Unit Installation Manual
Cause
Toshiba XXXXXXX(<SanSerif1>X/X)
EN
22-EN
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