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Troubleshooting

5-7

5-3-5  When the remote control does not operate

1) Checkpoint

The set sounds "beep" when it receives the signal of the remote contro l .

2) Checking Pro c e d u re s

Turn off the power, and then turn it on in five seconds.

Refer to the checkpoint when

the power is not supplied.

Then it is in normal operation

Then replace the battery.

Then replace the remote control.

Then replace the receiver module.

N

N

N

N

N

Y

Y

Y

Y

Y

Does the operation start when pressing the

ON/OFF button on the panel ?

Does the indoor unit sound a "beep", and stop when pressing 

the ON/OFF button on the remote control ?

Is the voltage of the battery over DC 2.5V?

Is the unit normally operated when pressing the ON/OFF button 

after replacing the remote control ?

In the receiving wave of the micom(IC01) No. 26 a 
square wave?

Check and replace the micom(IC0I).

Summary of Contents for KFH28PV2

Page 1: ...NIT KRH28PV2 CONTENTS AIR CONDITIONER 1 Precautions 2 Product Specifications 3 Operating Instructions and Installation 4 Disassembly and Reassembly 5 Troubleshooting 6 Exploded Views and Parts List 7...

Page 2: ...termediate connection of the electric cord Never attempt to make an intermediate connection by cutting the middle area of the electric cord or make a connection to the power receptacle as it is very d...

Page 3: ...Turbo High Medium Low 3 Blower Type 4 Motorswing 5 Fuse V A 1 Condenser Construction Row xStep Fin 2 Refrigerantvolume R 22 g 3 Compressor Maker Model Type Capacitor OLP 4 Fanmotor No ofpolarities Cap...

Page 4: ...2 2 2 2 Dimensions Indoor Unit Outdoor Unit unit mm 330...

Page 5: ...oor fan motor only Indoor temperature control according to the set temperature High Medium Low Automatic decision of High Medium and Low step by chaos operation Automatic decision of High Medium and L...

Page 6: ...n speed diagram Timer function Convenience function Airflow function Others Auto Cool Dry Fan Heat Display Auto natural high medium and low fan speed Display Temperature display Turbo high medium and...

Page 7: ...t can be changed by the unit of 1 C 5 Three minutes delay operation of the compressor 3 1 2 c Heat Operation 1 The compressor is automatically turned on off by the difference between the current tempe...

Page 8: ...tion mode is canceled and the unit returns to the previous mode 3 1 2 e Fan Speed Auto 1 Cooling operation 2 Heating operation Desired temperature 5 Desired temperature 4 C Desired temperature 2 C The...

Page 9: ...een the indoor temperature Ta and desired temperature Ts 3 The unit is operated with the compressor on and an indoor fan motor at a Low Speed for an initial six minutes including a three minute delay...

Page 10: ...tandard AUTO HEAT LOW MEDIUM HIGH AUTO LOW standard AUTO Increase the desired temperature display When turning the jog dial clock wise it displays the desired temperature and holding the jog dial cont...

Page 11: ...he desired for 5 senconds The trouble is occured by self diagnosis funtion ON The troubleshooting is completed OFF During reservation ON Reservation ended or canceled OFF Display the selected fan spee...

Page 12: ...he unit at such a place take the following measures against the wind 1 When installing the unit at a roadside concentrated with buildings install it parallel with the road 2 Install the unit so that t...

Page 13: ...without an insulator 1 Connect it to the terminal board N and L for power supply to the outdoor unit In so doing peel off the end of the power cord by about 5mm and press the cord to the ring ter mina...

Page 14: ...Fix the fixing holder B using the screw at a rear side groove 2 Put the fixing holder A on the fixing holder B then fix holders using the nut washer and bolt to direction you want 3 Fix the fixing ho...

Page 15: ...and the low pressure pipe to the heat exchanger gas pipe respectively using the flare nut taking care not to cause any leakage of refrigerant 4 Be sure to insulate the pipe with appropriate insulation...

Page 16: ...care to perform bending of the pipe successfully at one time Bending and unbending the pipe more than twice makes the bending work increasingly difficult 3 You may use the spring inserted into the gas...

Page 17: ...he outside The drilling should be done at a distance of less than 150mm from the floor facing the indoor unit 3 2 3 f Drain Hosel Extend the drain hose to the drain hose connected to the drain pan and...

Page 18: ...m using vacuum pump for about 10 minutes Close the valve of the low pressure side of manifold gauge clockwise Make sure that pressure gauge show 0 1MPa 76cmHg after about 10 minutes This procedure is...

Page 19: ...operation Open the tank and refill the refrigerant until arriving at the proper pressure Refill the refrigent slowly checking the pressure Close the gas pipe side valve by turning it clockwise Connec...

Page 20: ...pletion of installation Operating Instructions and Installation 1 Check the piping connection area for any gas leakage 2 Is the drain hose properly connected 3 Is the insulation of the piping in good...

Page 21: ...sure to check whether the service valve is opened before attempting to perform the test operation 2 Never attempt to start test operation by force pressing the electronic contactor as it is very dang...

Page 22: ...nd remove the power before repairing the unit No Parts Procedur e Remark 1 Front Grille 1 Packaged air conditioner indoor unit 2 Open the inlet grille and remove the connector ring 3 Loosen nine screw...

Page 23: ...bly 4 2 No Parts Procedur e Remark 5 To remove the Deco Low remove the right and left side two screws and then seper ate the wire connector 6 Remove the four screws and remove the cover top Then seper...

Page 24: ...arts Procedur e Remark 7 Remove the six screws and pull the upward cover top PCB 8 Loosen the right and left side two screws and then push the upward cover front 9 Remove the five screws and then remo...

Page 25: ...rocedur e Remark 10 Loosen one bolt to remove the blower 11 Loosen the five locking screws and remove the lower duct on the front side Remove the left and right side two screws and the upper side two...

Page 26: ...Disassembly and Reassembly 4 5 No Parts Procedur e Remark...

Page 27: ...Loosen the seven screws on the cover top and remove the cover top 2 Loosen the two screws on the cover control and remove the cover control 3 Loosen the six screws in the side cabinet and remove the s...

Page 28: ...n occurs when a power is on As a phenomenon that the compressor is reoperated after a delay of 3 minutes the indoor fan is adjusted automatically with reference to a temperature of the air blew The fa...

Page 29: ...shutter down when pressing the ON OFF Button Is the voltage of the power trans secondary side CN11 normal Red Red AC 4V 5V Blue Black AC14V 17V Blue White AC16V 19V Is the output voltage of IC08 and...

Page 30: ...rate when converting into high medium and low by the Fan speed key Is the resistance at both ends of the relay RY71 73 approximately 720 Is it HIGH when checking the output wave for each airflow at th...

Page 31: ...ompressor is operated in three minutes 1 minutes after starting the COOL HEAT operation by activating the ON OFF button and operation mode key Is the resistance at both ends of the relay RY76 coil app...

Page 32: ...t on in five seconds Press the ON OFF button Does the set operate normally after the panel shutter is down Is the resistance of both ends of the relay RY80 coil approximately 400 Is it HIGH when check...

Page 33: ...only when the shutter motor is operated 3 Is the out put voltage normal when opening closing the Panel shutter Press the ON OFF button Is the set in normal operating condition after the panel shutter...

Page 34: ...n Then replace the battery Then replace the remote control Then replace the receiver module N N N N N Y Y Y Y Y Does the operation start when pressing the ON OFF button on the panel Does the indoor un...

Page 35: ...6 1 6 Exploded Views and Parts List 6 1 Indoor Unit...

Page 36: ...P BLOWER NUT BLOWER WASHER BLOWER C OIL ASS Y EVAP COVER EVAP RH COVER EVAP LF COVER CONECTOR ASS Y BKT EVAP COVER EVAP UP FILTER PRE ASS Y GRILLE INLET ASS Y CASE JOINT COVER JOINT ASS Y COVER FRONT...

Page 37: ...6 3 6 1 1 ASS Y COVER FRONT Exploded Views and Parts List...

Page 38: ...GEAR SHUTTER PA 1 17 DB31 10124A MOTOR GEARD MSEDC10P01 1 18 DB93 10409A ASS Y PCB SENSOR 32 X 60 1 19 DB61 40210A HOLDER SENSOR ABS 1 20 DB64 70065B PANEL SHUTTER ABS PEAL COATING 1 21 DB61 70052A HI...

Page 39: ...6 5 6 1 2 ASS Y GRILLE INLET Exploded Views and Parts List...

Page 40: ...CODE NO DB64 10141A DB61 40212B DB92 10312A DB92 10313A DB33 10014A Description GRILLE INLET HOLDER REMOCON ASS Y BRKT GRILLE L ASS Y BRKT GRILLE L MAGNET Specification ABS PEARL COATING ABS SECC P S...

Page 41: ...6 7 6 2 Outdoor unit 19 18 14 1 16 17 15 7 6 9 11 13 12 8 2 4 5 19 1 19 2 10 3...

Page 42: ...ACK ASSY COVER CONTROL NUT WASHER INSULATION COMP BTM CLOTH COMP SIDE OUT GROMMET COMP ASSY BASE OUT ASSY COMP ASSY 4WAY V V SWITCH PRESSURE A SOLENDLA V V ASSY CHECK V V ASSY CONTROL OUT C OIL MAGNET...

Page 43: ...B73 20009G DB61 10020A DB64 20035A DB64 40007B DB74 10008A DB64 40068N DB63 10081A Description ASS Y REMOCON CASE REMOCON LW RUBBER BUTTON B ASS Y PCB REMOCON LCD RUBBER BUTTON A CASE REMOCON UPP DOOR...

Page 44: ...wn motor Right Left motor Compressor Load circuit Power circuit 5V Power circuit 12V Power circuit ASS Y SUB PCB Power circuit 20V AC 4 4V Indoor fan motor Panel shutter motor Outdoor fan motor 4 way...

Page 45: ...pipe length by more than 5m 40g of R 22 refrigerant should be refilled per extension length of 1m Allowavle pipe length Maximum 15m Allowable pipe drop distance Maximum 10m Operating Condition STD Pr...

Page 46: ...8 1 8 PCB Diagrams 8 1 Ass y Main PCB CODE NO DB93 10531B...

Page 47: ...3 20017A DE39 60001A DB09 10118A DE13 20009A DE13 20033A 3711 003251 3711 003252 3711 003246 DB47 90071A SPECIFICATION LOCATION NO Q TY SVR 05LL03 GP1U281R NYLON66 KPT 1115D 6X4 3MM SRGPTJ 1N4148 1N40...

Page 48: ...8 3 8 2 Ass y Power PCB Code No DB93 10532B...

Page 49: ...A DE39 60001A 3501 000399 DB47 90067A 1405 000001 3712 001062 3711 003253 3711 003244 3711 001082 3711 000262 SPECIFICATION LOCATION NO Q TY PH 3 L6 AB FEFZY AL6063 16 8 23 5 30 ESQ 1201 RD 1 4 T 102...

Page 50: ...18EZH J 5 6K MCH315A 104Z MCH315A 103Z SE 47 fi 6 3V MCH315A 101K MCH315A 150K SE 1 fi 50V 103AT 2 KSH 29 KSH 29C C1623 Y 455KHz 32 768KHz CL 1L5EU CL 1L5EU SMC621A HLC8707 MCR18EZH JO D CHIP RESISTOR...

Page 51: ...9 1 9 Wiring Diagrams 9 1 Indoor Unit...

Page 52: ...9 2 9 2 Outdoor Unit...

Page 53: ...ay not in whole or in part be copied photocopied reproduced translated or converted to any electronic or machine readable from without prior written permission of Samsung Electronics Co Ltd SyncMaster...

Page 54: ...10 1 10 Schematic Diagrams 10 1 Indoor Unit...

Page 55: ...10 2 10 2 Remote Control...

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