LED indication
Name of trouble
D800 D801 D802 D803 D804 D805
Normal
Discharge temp. sensor (TD) trouble
Heat exchanger temp. sensor (TE) trouble
Heat exchanger temp. sensor (TL) trouble
Outside temp. sensor (TO) trouble
Suction temp. sensor (TS) trouble
Heat sink temp. sensor (TH) trouble
Miswiring of heat exchanger temp. sensor (TE, TS)
Low pressure sensor (Ps) trouble
EEPROM trouble
Compressor break down
Compressor lock
Current detection circuit trouble
Case thermostat operation
Low pressure protective operation
Unset model type
Communication trouble between MCUs
Discharge temp. trouble
High pressure SW operation
Power supply trouble
Heat sink overheat trouble
Gas leak detection
4-way valve reversal trouble
High pressure protective operation
High pressure sensor (Pd) trouble
Fan system trouble
Short-circuit of compressor drive element
Compressor motor position detection circuit trouble
Combination failure between the hydro unit
: Off : Flash (5 times/sec): Light : Flash (1 time/sec)
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