2WAY ECO-i Alarm Codes, Alarm code Alarm meaning | Sanyo CHDXR07263

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		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

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

Contents

Outdoor Units Indoor Units Please Read Before Starting Check of Density Limit Contents Trouble Diagnosis Control Functions Outdoor unit No.1 Required settings for Test RunIntroduction Delayed Start of Outdoor Units Selecting an Outdoor Unit for OperationOutdoor Unit Operating Rules Outdoor Unit Stop Rules Compressor Control Compressor Selection RulesCapacity Type Compressor Capacity Control Inverter Compressor Capacity ControlForced Compressor Stop Roadmap Control Compressor Control Protection control Roadmap Control after Trip Way Valve Adjustment Control System Refrigerant Oil Recovery ControlSystem refrigerant oil recovery cycle Start of System Refrigerant Oil Recovery Control Refrigerant Oil Recovery Control between Systems Defrost ControlDefrost Methods Constraint conditions Reverse Cycle Defrost Outdoor units where defrost occursFrost detection Outdoor unit cycle defrost OFF Defrost end judgment conditions System defrost end Other Controls Oil Control Refrigerant Balance Valve RBV Gas Purge Valve Operation of Solenoid ValvesRefrigerant Control Valve RCV Recovery Valve Orvr Bypass Valve BPV CHDX07263, CHDX09663 Power InitializationTypes of Electronic Thermostatic Expansion Valves SC Circuit Electronic Control Valve MOV4 Outdoor Fan Control Demand setting Control Demand meaning Demand Control Indoor Unit Control of the Electronic Control Valve Normal ControlCooling operation Heating operation Special Control Rap Valve Kit Control Gas tube valve Electronic thermostatic Expansion valve Indoor Unit Refrigerant Oil Self Recovery Control Discharge Temperature Discharge temperature protection listDischarge sensor failure list Compressor No Current Protection Pressure Sensor Failure Manual Backup Backup OperationAutomatic Backup Operation Compressor 2 backup S010 switchS010 Compressor 1 backup Service Maintenance Functions This setting controls the operation of the drain pumpSetting Max. fan mode Effect Amount of capacity reduction Setting Description Setting Operation Setting No Compatible static pressure psiSet at outdoor units that include CCU functions Speed Other Functions Snowfall Sensor Functions Outdoor Eeprom Symptoms of overcharge Outdoor unit PCB LED indications in judgment modeSymptoms of insufficient gas Memo Outdoor Unit Repair Procedures Procedures Removing Panels Removing Electrical Component Box and Duct Remove the lower duct remove 2 screws, and a hook Remove the upper duct remove 3 screws Fig Discharging Compressor Oil Discharging Oil from Oil SeparatorDischarging Oil in Compressor Checking the Oil Automatic Backup Backup operation by disconnecting the outdoor unitSwitch on outdoor unit control PCB Action If the failed outdoor unit is not the No unit If the failed unit is the No outdoor unit main unit Backup operation settings for each compressor INV compressor AC1 compressor Setting for backup operation Recovering Refrigerant Refrigerant Recovery Procedures from outdoor unitCarry out refrigerant recovery Following equipment and tools are required Refrigerant Recovery Procedures Indoor Unit Cooling operation for all units Unit Recovering Refrigerant Recovery of Refrigerant from Entire System Checking for Leakage After Repair Pressure Check for Leakage of Outdoor Unit Evacuating System Evacuating Repaired Outdoor Unit Charging Compressor Oil If Refrigerant Has Already Been Charged to Outdoor Unit DPR If Outdoor Unit Has Not Been Charged with Refrigerant JT160G-KTTJ Pumping Out Refrigerant from Outdoor Unit Pumping Out Refrigerant from Outdoor Unit Refrigerant recovery unit Faulty outdoor unit Other outdoor unit Compressor Compressor Trouble Diagnosis and Check Methods Compressor Replacing all compressors in a failed unit Replacing all compressors in a system Dry core cleaning If a ball valve is installed on the outdoor unit If a ball valve is not installed on the outdoor unit Cleaning dry core Removal Removing and Installing CompressorsReplacing compressors Installation Front view Type Compressor Compressor Replacing multiple compressors Removal Removing the High and Low Pressure Sensor Installing the High and Low Pressure SensorsHigh and Low Pressure Sensors Replacing 4-way Valve Protect the check valves as shown in the figure Replacing 4-way Valve Memo Outdoor Unit Maintenance Remote Controller NN About the outdoor unit maintenance remote controller Service Checker SectionSystem diagram Overview NN Temperature monitor NN Outdoor unit alarm history monitorNN Mode settings Functions NN Functions on the ordinary display All units start/stop Fig Cooling/heating change FigAll units test run Fig Double-speed NN Display functions Item code Remarks Locations where Œ, , and Ž are displayed as shown in Fig Sample displays Is not displayed Display of unit Nos −Meaning of display colon Monitoring Operations NN Display of unit No main unit Indoor unit Outdoor Unit Alarm History Monitor Operating procedure Mode Settings Setting mode 1 Operating procedureDisplay of ﬁrst 4 digits Display of last 4 digits B are displayed alternately Setting mode 2 Operating procedure List of Item Codes Memo Remote Controller Functions Remote Controller Functions Section Simple Settings FunctionProcedure List of Simple Setting Items Item code Setting data Description Detailed Settings Function List of Detailed Setting Items Setting data Item code Description Minutes No forced operation DC fan tap operating Purpose Mode Simple setting items Filter sign on times for each model Function Explanation of operation mode priority changeEnabled only in 2WAY Multi heat-pump models Cooling or dry Heating Fan Fan not changed Detailed Settings Function Setting range Drying From previous Remote Controller Servicing Functions List of Servicing Functions Operates the unit with the thermostat forced on ProcedureTest Run Function Procedure Outdoor unit sensors Trouble Diagnosis Contents of Remote Controller Switch Alarm Display Possible cause of malfunction Operation Display meaning Outdoor Unit Control Panel LED DisplayBlinking OFF Check procedure Example Unit No Item code sensor address Discharge temp. TD Sensor Temperature Relationship Table 2WAY ECO-i Alarm Codes Alarm code Alarm meaning 2WAY ECO-i Alarm Codes E06 Alarm Alarm code E12 Alarm Alarm codeE15 Alarm Alarm code S004 S005 E16 Alarm Alarm code E20 Alarm Alarm codeE24 Alarm Alarm code CN001 E29 Alarm Alarm code E25 Alarm Alarm codeE26 Alarm Alarm code F04, F05 Alarm Alarm code F06, F23 Alarm Alarm code F07, F24 Alarm Alarm code F08 Alarm Alarm code F12 Alarm Alarm code F16 Alarm Alarm code F17 Alarm Alarm code F31 Alarm Alarm code H11, H12 Alarm Alarm code H03, H13 Alarm Alarm code H15 Alarm Alarm code H06 Alarm Alarm code Which may damage the compressor H07 Alarm Alarm code H08, H27 Alarm Alarm code H31 Alarm Alarm code L04 Alarm Alarm code L10 Alarm Alarm codeL17 Alarm Alarm code L18 Alarm Alarm code P03, P17 Alarm Alarm code P04 Alarm Alarm code P05 Alarm Alarm code Fan circuit on the outdoor unit control PCB P16 Alarm Alarm codeP22 Alarm Alarm code Blinking inspection display 1 Automatic backup P26 Alarm Alarm codeP29 Alarm Alarm code Alarm code Blinking inspection display Blinking Inspection Display on the Remote Controller Alarm meaning Compressor magnet SW seizing detected Inspection of Parts Test Pin Output Operation Indoor heat exch. coil sensor E1, E3 Thermister Characteristics CurveRoom temp.sensor Compressor discharge gas temp. sensor Memo Service hvac.service@sna.sanyo.com 201002