Sanyo AHX0952, UHX2452, UHX0752, UHX1252, UHX3652, UHX1852, THX2452, THX1252, THX1852, XHX1852 P02

Page 19

Test Run

6. Meaning of Alarm Messages

Possible cause of malfunction

 

Alarm

 

Message

 

 

 

Activation of

Protective device in outdoor unit

Compressor therminal protector is activated.

 

protective

is activated.

Power supply voltage is unusual. (The voltage is more than 260 V or less

P02

device

 

than 160 V between L1 and L2 phase.)

 

 

 

Incorrect discharge temperature. (Comp. No. 1)

P03

 

 

 

 

 

 

High pressure switch is activated.

P04

 

 

 

 

 

 

Negtive (defective) phase.

P05

 

 

 

 

 

 

Compressor running failure resulting from missing phase in the

P16

 

 

compressor wiring, etc. (Start failure not caused by IPM or no gas.)

 

 

 

 

 

Incorrect discharge temperature. (Comp. No. 2)

P17

 

 

 

 

 

 

Compressor 3 discharge temp. failure

P18

 

 

 

 

 

 

Outdoor unit fan motor is unusual.

P22

 

 

 

 

 

 

Overcurrent at time of compressor runs more than 80Hz (DCCT

 

 

 

secondary current or ACCT primary current is detected at a time other

P26

 

 

than when IPM has tripped.)

 

 

 

IPM trip (IPM current or temperature)

H31

 

 

 

 

 

 

Inverter for compressor is unusual. (DC compressor does not operate.)

P29

 

 

 

 

Thermistor fault

Indoor thermistor is either open

Indoor coil temp. sensor (E1)

<<F01>>

 

or damaged.

 

 

 

Indoor coil temp. sensor (E2)

<<F02>>

 

 

 

 

 

 

 

 

Indoor coil temp. sensor (E3)

<<F03>>

 

 

Indoor suction air (room) temp. sensor (TA)

<<F10>>

 

 

 

 

 

 

Indoor discharge air temp. sensor (BL)

<<F11>>

 

 

 

 

 

Outdoor thermistor is either

Comp. No. 1 discharge gas temp. sensor (DISCH1)

F04

 

open or damaged.

 

 

 

Comp. No. 2 discharge gas temp. sensor (DISCH2)

F05

 

 

 

 

 

 

 

 

Outdoor No. 1 coil gas temp. sensor (EXG1)

F06

 

 

 

 

 

 

Outdoor No. 1 coil liquid temp. sensor (EXL1)

F07

 

 

 

 

 

 

Outdoor air temp. sensor (AIR TEMP)

F08

 

 

 

 

 

 

Compressor intake port temperature sensor (RDT)

F12

 

 

 

 

 

 

High pressure sensor. Negative (defective) N phase.

F16

 

 

 

 

 

 

Low-pressure sensor failure

F17

 

 

Compressor 3 discharge temp. sensor failure (DISCH3)

F22

 

 

 

 

 

 

Outdoor No. 2 coil gas temp. sensor (EXG2)

F23

 

 

 

 

 

 

Outdoor No. 2 coil liquid temp. sensor (EXL2)

F24

 

 

 

 

EEP ROM on indoor unit PCB failure

 

F29

 

 

 

 

Protective

Protective device for

EEP ROM on the main or sub outdoor unit PCB has failed.

F31

device for

compressor No.1 is activated.

 

 

Current is not detected when comp. No. 1 is ON.

H03

compressor is

 

 

 

 

activated

 

Discharge gas temperature of the comp. No. 1 is not detected.

H05

 

 

Temp. sensor is not seated at the sensor holder.

 

 

 

 

Protective device for

Overload current is detected.

H11

 

compressor No.2 is activated

 

 

 

Lock current is detected.

H12

 

 

 

 

 

 

 

 

Current is not detected when comp. No.2 is ON.

H13

 

 

 

 

 

 

Discharge gas temperture of comp. No.2 is not detected.

H15

 

 

 

 

 

Protective device for

Compressor No.3 current trouble (overcurrent)

H21

 

compressor No.3 is activated.

 

 

 

Compressor No.3 current trouble (locked)

H22

 

 

 

 

Compressor No.3 CT sensor disconnected or short circuit

H23

 

 

 

 

 

 

Compressor No.3 discharge temp. sensor disconnected

H25

 

 

 

 

 

 

Low pressure switch is activated.

H06

 

 

 

 

 

Low oil level.

 

H07

 

 

 

 

 

Oil sensor fault.

Comp. No.1 oil sensor

H08

 

(Disconnection, etc.)

 

 

 

Comp. No.2 oil sensor

H27

 

 

 

 

 

 

 

 

Oil sensor (connection) failure

H28

Continued

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Contents Outdooe Units „ R410A Models Indoor UnitsPage Check of Density Limit Contents Test RUN ContentsPreparing for Test Run Test RunItems to Check Before the Test Run Test Run ProcedureMain Outdoor Unit PCB Setting Setting of Unit Control PCBUnit 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 S006Auto 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 NoCase 3A Automatic Address Setting in Heating Mode Case 3B Automatic Address Setting in Cooling Mode Automatic Address Setting* from the Remote ControllerRemote 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 SettingsTest 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 belowAfter the compressor turns on Operating mode change Shifted set tempFAN Speed selector button Wireless Remote ControllerMode button TransmitterC Sensor button Cool mode and Dry mode, if the flaps are set in a downwardFilter button Address buttonOFF Cycle Timer Indicator when swing operation is stoppedTimer SET button OFF TimerReceiver Control Temperature sensors at the indoor unit side are usedOperation Multiple units GroupHow to install batteries Using the Wireless Remote Control UnitCover Address Settings D type TypeControl unit will not be accepted Emergency OperationOperation ShutdownPress 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-TM80BGNames and Operations Timer OFF indication Display Section Refer to Setting indicationTimer No. indication Timer programHow to install the Remote Controller Installation Manual for Timer Remote ControllerTo Display the Sensor Temperature Group Control Using 2 Remote ControllersRemote Controller Setting Mode Indoor Unit Setting Mode13/32 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 weekSelect a Timer number Weekly Program Function Checking Weekly TimerProgram image diagram Press To enter the program confirmation mode Start settingSet the minute. program step Set the hour. program stepIndoor unit starts operation at the programmed time Press / to change the temperature settingSet the program pattern. program step PatternDeleting the Program Timer How to invalidate the program timerHow to cancel the program timer invalidation If Power Failure OccurredBefore Asking Repair Work Duplicating the Program TimerYou can duplicate the preset program by day Select the copy sourceOuting Function Precautions„ For Example Setting at Outing Temperature 86F 30C Room temperatureOuting function indication Canceling the outing functionOuting function indication Status Sleeping Function Wired Remote Controller Test Run Settings Simple Settings Function ProcedureList of Simple Setting Items Detailed Settings Functions Setting data List of Detailed Setting ItemsDescription Item code Setting data Description Code Description Setting dataTimer 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 OFFAlarm code Alarm meaning 2WAY ECO-i Alarm CodesE15 Alarm Alarm code E06 Alaral rm Alarm codeAlarm E04 occurs E12 Alarm Alarm codeAt a number of indoor units E16 Alarm Alarm codeE20 Alarm Alarm code E24 Alarm Alarm codePower at the outdoor unit main is turned OFF E25 Alarm Alarm codeE26 Alarm Alarm code E29 Alarm Alarm codeOutdoor unit control PCB F04, F05, F22 Alarm Alarm codeCrossed wiring or installation error Check Check for crossed wiring and installation errorsAlarm meaning Identification of the problem in this caseF06, F23 Alarm Alarm code F07, F24 Alarm Alarm codeF08 Alarm code F12F16 Alarm Alarm code F17 Alarm Alarm codeH03 alarm Alarm code F31 Alarm Alarm codeValve must be replaced H06 Alarm Alarm codeOn the degree of the problem Which may damage the compressorH11, H12, H21, H22 Alarm Alarm code H05, H15, H25 Alarm Alarm code H13, H23 Alarm Alarm codeL04 Alarm Alarm code H31 Alarm Alarm codeL05 Alarm Alarm code L18 alarm Alarm code L06 Alarm Alarm codeL10 Alarm Alarm code L17 Alarm Alarm codeP03, P17, P18 Alarm Alarm code P04 Alarm Alarm code Noise in some cases P05 Alarm Alarm codeP16 Alarm Alarm code Primary or secondary currentP26 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 PCBFunctions for CR-CHDX14053 Progress will stop the automatic address setting operationOutdoor Unit Control PCB Mode. Static signalSetting 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-BCR1 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 OptionSELF-DIAGNOSIS Function Table Trouble Cause and correction Alarm displayAlarm descriptionSelf-Diagnosis Function Table Self-Diagnosis Function TableCause Check items E15 E16 E20DISCH2 Alarm code Alarm meaningService 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 FigItem codes can be changed with Buttons Display functionsItem code Remarks Sample display -4, Fig XX-YY R.CSample Display A, B Outdoor unit Monitoring OperationsDisplay of unit No main unit Indoor unitOutdoor Unit Alarm History Monitor Code Parameter Description SET Data „ Setting modeParameter Description SET Data „ Setting modePage 200706MDC
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