Sanyo CHDXR07263, CHDXR09663, CHDX09663, CHDX07263 2WAY ECO-i Alarm Codes, Alarm code Alarm meaning

4. W-2WAY ECO-i Alarm Codes

W-2WAY ECO-i SYSTEM Trouble Diagnosis

With type 96, the INV compressor is compressor 1, and the constant-speed compressor is compressor 2.

With type 72, the INV compressor is compressor 1.

Alarm code	Alarm meaning	Page
E06	Outdoor unit failed to receive serial communication signals from indoor unit.	5-9
E12	Automatic address setting start is prohibited.	5-9
E15	Automatic address setting alarm (too few units)	5-9
E16	Automatic address setting alarm (too many units)	5-10
E20	No indoor units at automatic address setting.	5-10
E24	Outdoor unit (INV) failed to receive communications from another outdoor	5-10
	unit (constant-speed).
E25	Outdoor unit address setting failure (duplication)	5-11
E26	Mismatch in outdoor unit quantity	5-11
E29	Outdoor unit failed to receive communication from outdoor unit (main)	5-11
F04	Compressor 1 discharge temperature sensor trouble	5-12
F05	Compressor 2 discharge temperature sensor trouble	5-12
F06	Gas temperature sensor trouble at outdoor heat exchanger 1 (In)	5-13
F07	Liquid temperature sensor trouble at outdoor heat exchanger 1 (Out)	5-13
F08	Outdoor air temperature sensor trouble	5-14
F12	Compressor intake temperature sensor trouble	5-14
F16	High-pressure sensor trouble	5-15
F17	Low-pressure sensor trouble	5-16
F23	Gas temperature sensor trouble at outdoor heat exchanger 2 (In)	5-13
F24	Liquid temperature sensor trouble at outdoor heat exchanger 2 (Out)	5-13
F31	Outdoor unit non-volatile memory (EEPROM) trouble	5-16
H11	Constant speed compressor 2 overcurrent alarm	5-17
H12	Constant speed compressor 2 lock current alarm	5-17
H03	Compressor 1 CT sensor disconnected or short-circuit	5-18
H06	Low-pressure switch activated	5-19
H07	No-oil alarm	5-20	5
H08	Compressor 1 oil detection sensor (connection) trouble	5-21
H13	Compressor 2 CT sensor disconnected or short-circuit	5-18
H15	Compressor 2 discharge temperature sensor disconnected	5-18
H27	Compressor 2 oil detection sensor (connection) trouble	5-21
H31	HIC trouble alarm	5-21
L04	Outdoor system address duplication	5-22
L10	Outdoor unit capacity not set	5-22
L17	Outdoor unit model mismatch	5-22
L18	4-way valve operation failure	5-22

5 - 7