Manuals / Sanyo / Household Appliance / Air Conditioner

Sanyo UHX0752, UHX2452, UHX1252, UHX3652, UHX1852 2WAY ECO-i Alarm Codes, Alarm code Alarm meaning

Models: DHX4852 XHX1852 KHX2452 KHX0752 XHX2452 THX1852 UHX3652 UHX1852 KHX1252 KHX0952 THX2452 AHX0752 DHX3652 XHX1252 UHX1252 UHX0752 KHX1852 THX1252 UHX2452 AHX1252 AHX0952 XHX3652

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Trouble Diagnosis

3. W-2WAY ECO-i Alarm Codes

W-2WAY ECO-i Trouble Diagnosis

Alarm code			Alarm meaning	Page

E06	Outdoor unit failed to receive serial communication signals from indoor unit.			3-6
E12	Automatic address setting start is prohibited.			3-6
E15	Automatic address setting alarm (too few units)			3-6
E16	Automatic address setting alarm (too many units)			3-7
E20	No indoor units at automatic address setting.			3-7
E24	Outdoor unit (INV) failed to receive communications from another outdoor			3-7
	unit (constant-speed).			3-7
	unit (constant-speed).

E25	Outdoor unit address setting failure (duplication)			3-8
E26	Mismatch in outdoor unit quantity			3-8
E29	Outdoor unit failed to receive communication from relay control unit			3-8

F04	Compressor 1 discharge temperature sensor trouble			3-9
F05	Compressor 2 discharge temperature sensor trouble			3-9

F22	Compressor 3 discharge temperature sensor trouble			3-9
F06	Gas temperature sensor trouble at outdoor heat exchanger 1 (In)			3-10
F07	Liquid temperature sensor trouble at outdoor heat exchanger 1 (Out)			3-10
F08	Outdoor air temperature sensor trouble			3-11
F12	Compressor intake temperature sensor trouble			3-11
F16	High-pressure sensor trouble			3-11
F17	Low-pressure sensor trouble			3-11
F23	Gas temperature sensor trouble at outdoor heat exchanger 2 (In)			3-10
F24	Liquid temperature sensor trouble at outdoor heat exchanger 2 (Out)			3-10
F31	Outdoor unit non-volatile memory (EEPROM) trouble			3-12

H03	Compressor CT sensor disconnected or short-circuit.			3-12
H11	Constant speed compressor 2 overcurrent alarm			3-14
H12	Constant speed compressor 2 lock current alarm			3-14
H05	Compressor 1 discharge temperature sensor disconnected			3-15
H06	Low-pressure trouble in refrigerant circuit.			3-13
H13	Compressor 2 CT sensor disconnected or short-circuit			3-15
H15	Compressor 2 discharge temperature sensor disconnected			3-15
H21	Compressor 3 overcurrent alarm			3-14
H22	Compressor 3 lock current alarm			3-14
H23	Compressor 3 CT sensor disconnected or short-circuit			3-15
H25	Compressor 3 discharge temperature sensor disconnected			3-15
H31	HIC trouble alarm			3-16

L04	Outdoor unit address duplication			3-16
L05	Duplicated indoor unit priority (alarm at priority indoor units)			3-16
L06	Duplicated indoor unit priority (alarm at non-priority indoor units)			3-17
L10	Outdoor unit capacity not set			3-17
L17	Outdoor unit model mismatch			3-17
L18	4-way valve operation failure.			3-17

P03	Compressor 1 discharge temperature trouble			3-18
P04	High-pressure switch activated			3-19
P05	Reverse phase (or missing phase) detected, capacity mismatch			3-20
P16	Compressor 1 overcurrent			3-20
P17	Compressor 2 discharge temp trouble			3-18
P18	Compressor 3 discharge temp trouble			3-18
P22	Fan motor trouble			3-21
P26	Inverter compressor high-frequency overcurrent alarm			3-21
P29	Inverter compressor missing phase or lock alarm			3-21

Blinking on the wired remote controller			CHECK blinking (1)	3-22
Blinking on the wired remote controller			CHECK blinking (2)	3-23
			CHECK blinking (2)	3-23

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Sanyo UHX0752, UHX2452, UHX1252, UHX3652, UHX1852, THX2452, THX1252, THX1852 2WAY ECO-i Alarm Codes, Alarm code Alarm meaning

Contents

Outdooe Units „ R410A Models Indoor UnitsPage Check of Density Limit Contents Test RUN Contents Preparing for Test Run Test Run Items to Check Before the Test Run Test Run Procedure Main Outdoor Unit PCB Setting Setting of Unit Control PCB Unit No. setting Indoor unit setting S004 Rotary switch, redSystem address S003 System address No P DIP switch, blue 10 No. of outdoor units Outdoor unit setting S006 Auto Address Setting Basic wiring diagram Example Auto Address SettingAutomatic Address Setting from the Outdoor Unit Refrigerant 22-9Circuit Units Case 2 Automatic Address Setting no compressor operationAutomatic Address Setting from Outdoor Unit On the No Case 3A Automatic Address Setting in Heating Mode Case 3B Automatic Address Setting in Cooling Mode Automatic Address Setting* from the Remote Controller Remote controller display Display during automatic address settingOn outdoor main unit PCB Use the remote controller to check the indoor unit address Auto Address Setting Remote Controller Test Run SettingsIf 1 indoor unit is connected to 1 remote controller Remote Controller Test Run Settings Test Run Alarm contents Meaning of Alarm MessagesPossible cause of malfunction P02 Alarm messages displayed on system controller Timer Remote Controller RCS-TM80BG Wireless Remote ControllerMain Operating Functions Deg Room Temperature ControlMain Operating Functions Thermostat is turned ON/OFF according to as shown below After the compressor turns on Operating mode change Shifted set temp FAN Speed selector button Wireless Remote ControllerMode button Transmitter C Sensor button Cool mode and Dry mode, if the flaps are set in a downwardFilter button Address button OFF Cycle Timer Indicator when swing operation is stoppedTimer SET button OFF Timer Receiver Control Temperature sensors at the indoor unit side are usedOperation Multiple units Group How to install batteries Using the Wireless Remote Control UnitCover Address Settings D type Type Control unit will not be accepted Emergency OperationOperation Shutdown Press the Emergency operation button once more Trouble Possible Cause Remedy TroubleshootingTrouble Possible Cause How to Use the Timer Remote Controller Operating buttons Timer Remote Controller RCS-TM80BG Names and Operations Timer OFF indication Display Section Refer to Setting indicationTimer No. indication Timer program How to install the Remote Controller Installation Manual for Timer Remote Controller To Display the Sensor Temperature Group Control Using 2 Remote ControllersRemote Controller Setting Mode Indoor Unit Setting Mode 13/32 Press To change the present hour in the range of 0 to 23 Setting the Present TimeOnce you enter in the setting mode Day and time ﬂ ash Set to today’s day of the week Select a Timer number Weekly Program Function Checking Weekly TimerProgram image diagram Press To enter the program conﬁrmation mode Start setting Set the minute. program step Set the hour. program step Indoor unit starts operation at the programmed time Press / to change the temperature settingSet the program pattern. program step Pattern Deleting the Program Timer How to invalidate the program timerHow to cancel the program timer invalidation If Power Failure Occurred Before Asking Repair Work Duplicating the Program TimerYou can duplicate the preset program by day Select the copy source Outing Function Precautions„ For Example Setting at Outing Temperature 86F 30C Room temperature Outing function indication Canceling the outing functionOuting function indication Status Sleeping Function Wired Remote Controller Test Run Settings Simple Settings Function Procedure List of Simple Setting Items Detailed Settings Functions Setting data List of Detailed Setting ItemsDescription Item code Setting data Description Code Description Setting data Timer Remote Controller RCS-TM80BG Table of DC Fan Motor Tap Settings ceiling-mounted type TP6 TP3 TP1 Display Sensor Servicing check Alarm history Press and hold Remote Controller Servicing FunctionsMaintained Test Run Function Normal remote controller display Trouble Diagnosis Contents of Remote Controller Switch Alarm Display Heat exchanger 1 gas temp. sensor F06 Display meaning Are occurring Automatic address setting is in progressNumber that was set Alarm display OFF Alarm code Alarm meaning 2WAY ECO-i Alarm Codes E15 Alarm Alarm code E06 Alaral rm Alarm codeAlarm E04 occurs E12 Alarm Alarm code At a number of indoor units E16 Alarm Alarm codeE20 Alarm Alarm code E24 Alarm Alarm code Power at the outdoor unit main is turned OFF E25 Alarm Alarm codeE26 Alarm Alarm code E29 Alarm Alarm code Outdoor unit control PCB F04, F05, F22 Alarm Alarm codeCrossed wiring or installation error Check Check for crossed wiring and installation errors Alarm meaning Identification of the problem in this caseF06, F23 Alarm Alarm code F07, F24 Alarm Alarm code F08 Alarm code F12F16 Alarm Alarm code F17 Alarm Alarm code H03 alarm Alarm code F31 Alarm Alarm code Valve must be replaced H06 Alarm Alarm codeOn the degree of the problem Which may damage the compressor H11, H12, H21, H22 Alarm Alarm code H05, H15, H25 Alarm Alarm code H13, H23 Alarm Alarm code L04 Alarm Alarm code H31 Alarm Alarm codeL05 Alarm Alarm code L18 alarm Alarm code L06 Alarm Alarm codeL10 Alarm Alarm code L17 Alarm Alarm code P03, P17, P18 Alarm Alarm code P04 Alarm Alarm code Noise in some cases P05 Alarm Alarm codeP16 Alarm Alarm code Primary or secondary current P26 Alarm Alarm code P22 Alarm Alarm codeP29 Alarm Alarm code Alarm code Blinking Inspection display Blinking inspection display 1 Automatic backupCompressor magnet SW seizing detection Corresponding outdoor unit Alarm meaning Compressor magnet SW seizing detectedAlarm may be caused by the effects of noise. See notes Within that refrigerant tubing system are stoppedPage PCB and Functions Outdoor Unit Control PCB CR-CHDX14053 Outdoor Unit Control PCB Functions for CR-CHDX14053 Progress will stop the automatic address setting operation Outdoor Unit Control PCB Mode. Static signal Setting the Outdoor Unit address S007 Setting Address Link wiringSystem only T10 Indoor Unit Control PCBJP1 For DC Fan Motor CR-SXRP56B-B For AC Fan Motor CR-UXRP71B-B CR1 for CR-KR74GXH56A/KHX0752~KHX1852 Wall-Mounted CR1 for CR-KR254GXH56A/KHX2452 Wall-Mounted CR2 for POW-KR74GXH56/KHX0752~KHX2452 Wall-Mounted Or less Signal. Jumper wire cut Static signal continuous signalCN017 CN014 Option SELF-DIAGNOSIS Function Table Trouble Cause and correction Alarm displayAlarm descriptionSelf-Diagnosis Function Table Self-Diagnosis Function Table Cause Check items E15 E16 E20 DISCH2 Alarm code Alarm meaning Service Checker System Diagram Outdoor Unit Maintenance Remote ControllerFunctions Functions on the ordinary display All units test run Fig Temperature monitorAll units start/stop Fig Cooling/heating change Fig Item codes can be changed with Buttons Display functionsItem code Remarks Sample display -4, Fig XX-YY R.C Sample Display A, B Outdoor unit Monitoring OperationsDisplay of unit No main unit Indoor unit Outdoor Unit Alarm History Monitor Code Parameter Description SET Data „ Setting mode Parameter Description SET Data „ Setting modePage 200706MDC