Toshiba HWS-803XWHM3-E Service Manual page 149

(2) -2. Abnormality indication
The current abnormality and the latest abnormality (including the current one) can be identified by the
LED D800 to D804 on the outdoor control board.
1) Setting all the SW803 dip switches to OFF indicates the current abnormality status.
2) Setting SW803 dip switch <1> only to ON indicates the previous abnormality (including the current
one).
3) An abnormality lights any of the LEDs from D800 to D804.(Indication 1)
4) Pressing the push-button switch SW800 for approx. 1 second switches indication.(Indication 2)
5) When SW800 is again pressed or 2 minutes has passed, the indication 1 status returns.
Current abnormality Latest abnormality
SW803 SW803
Indication 1 Indication 2
(Initial indication) (SW800 operation)
Legend)
Abnormality details
Normal
Discharge temperature sensor (TD) failure
Heat exchanger temperature sensor (TE) failure
Heat exchanger temperature sensor (TL) failure
Outside air temperature sensor (TO) failure
Suction temperature sensor (TS) failure
Heat sink temperature sensor (TH) failure
Heat exchanger, suction sensor (TE, TS) wrong wiring
EEPROM failure
Compressor break down
Compressor lock
Current detection circuit failure
Faulty compressor case thermostat
Not set up the capacity
Communication failure between MCUs
Other abnormality (e.g. Compressor's loss of synchronism)
Abnormal discharge temperature
High pressure SW system error
Power failure
Heat sink overheat failure
Gas leakage detection
4-way valve reverse failure
Hi pressure protection operation
Fan drive system failure
Compressor drive
Compressor rotor position failure
148
---- Off ---- Light
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F04
F06
F07, F06
F08
F12, F06
F13, L29
F15, F06
F31, L29
H01
H02
H03
H04, P04
L10, L29
L29
No abnormality confirmation
P03
P04
P05, H03, P04
P07, L29
P15, L29
P19, L29
P20, P04
P22
P26
P29
---- Blink
Remote controller
Abnormality code