Sanyo CHDX07263, CHDXR07263 L04 Alarm Alarm code, L10 Alarm Alarm code, L17 Alarm Alarm code

4. W-2WAY ECO-i Alarm Codes

W-2WAY ECO-i SYSTEM Trouble Diagnosis

	L04 Alarm
		Alarm code	L04
		Alarm meaning	Outdoor system address duplication
		Alarm conditions	Communication by inter-unit control wiring was received that contained the same address as that
			unit 5 times or more within 3 minutes.
		Probable cause	Incorrect outdoor system address settings
		Check	Check the system address settings again.
		Correction	Correct the system address settings.
		Example	—
		Notes	Recovery from this alarm occurs automatically (when communication that contains the same
			address as that unit is not received for 3 minutes after detection).
	L10 Alarm
		Alarm code	L10
		Alarm meaning	Outdoor unit capacity not set
		Alarm conditions	The outdoor unit capacity has not been set, or the setting is not allowed by the system.
		Probable cause	This alarm occurs because the capacity has not been set.
		Check	Connect the outdoor unit maintenance remote controller. On the outdoor unit EEPROM detailed
			setting mode screen, check the value for the outdoor unit capacity (item code 81). Check that it is
			not set to “0” or to a capacity that is not allowed.
		Correction	If item code 81 is incorrect, use the outdoor unit maintenance remote controller and set it
			correctly.
			* After changing the setting, be sure to reset both the indoor and outdoor power.
		Example	—
		Notes	The outdoor unit maintenance remote controller is required in order to set the capacity in the
			outdoor unit EEPROM.
	L17 Alarm
		Alarm code	L17
		Alarm meaning	Outdoor unit model mismatch
		Alarm conditions	This alarm occurs when a unit other than a R410A refrigerant model is connected.
		Probable cause	(1) A unit that uses R407C refrigerant, or a R22 model unit, was connected by mistake.
			(2) The connected unit is correct, however the refrigerant type setting in the outdoor unit
			EEPROM (item code 80) is incorrect.
5		Check	(1) Check the refrigerant type at the connected unit.
			(2) Use the outdoor unit maintenance remote controller and check the item code 80 refrigerant
			type. If the setting is incorrect, change it to R410A.
		Correction	—
		Example	—
		Notes	The outdoor unit maintenance remote controller is required in order to set the refrigerant type in
			the outdoor unit EEPROM.
	L18 Alarm
		Alarm code	L18
		Alarm meaning	4-way valve operation failure
		Alarm conditions	During heating operation (Comp. ON), the highest detected temperature at an outdoor unit
			heat exchanger (EXG 1, EXG 2, EXL 1, or EXL 2) was 40°F or more above the outdoor air
			temperature (Air Temp.) continuously for 5 minutes or longer, or the detected suction temperature
			(SCT) was 40°F or more above the outdoor air temperature continuously for 5 minutes or longer.
		Probable cause	(1) The 4-way valve connector (20S CN060) has become disconnected from the control PCB.
			(2) The 4-way valve circuit is locked (malfunctioning).
		Check	(1) Check the 4-way valve connector (20S CN060).
			(2) If the connector is normal, check the 4-way valve wiring and the PCB circuit.
		Correction	If the connector is normal, correct or replace the problem locations.
		Example	—
		Notes	—

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