Panasonic CS-NE9JKE-1 Service Manual Download Page 68

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15.4.16. H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry)

Error code will not display (no TIMER LED blinking) but store in EEPROM

Malfunction Decision Conditions

Freeze prevention control takes place (when indoor pipe temperature is lower than 2

Malfunction Caused

• Clogged air filter of the indoor unit
• Dust accumulation on the indoor unit heat exchanger
• Air short circuit
• Detection error due to faulty indoor pipe temperature sensor
• Detection error due to faulty indoor unit PCB

Troubleshooting

Summary of Contents for CS-NE9JKE-1

Page 1: ...Indoor Unit 13 5 2 Outdoor Unit 14 6 Refrigeration Cycle Diagram 15 7 Block Diagram 16 8 Wiring Connection Diagram 17 8 1 Indoor Unit 17 8 2 Outdoor Unit 18 9 Electronic Circuit Diagram 19 9 1 Indoor...

Page 2: ...ON Button 46 14 2 Remote Control Button 47 15 Troubleshooting Guide 48 15 1 Refrigeration Cycle System 48 15 2 Breakdown Self Diagnosis Function 50 15 3 Error Codes Table 51 15 4 Self diagnosis Metho...

Page 3: ...ing standard regulation and the installation instruction An independent circuit and single outlet must be used If electrical circuit capacity is not enough or defect found in electrical work it will c...

Page 4: ...ghten the flare nut with torque wrench according to specified method If the flare nut is over tightened after a long period the flare may break and cause refrigerant gas leakage 4 Do not touch outdoor...

Page 5: ...A 3 9 Input Power W 115 825 1 36k COP W W 5 22 4 36 3 97 Kcal hW 4 52 3 76 3 41 Power Factor 92 Indoor Noise H L QLo dB A 40 27 24 Power Level dB 56 43 40 Outdoor Noise H L dB A 47 Power Level dB 62...

Page 6: ...n Height I D O D mm inch 290 11 7 16 540 21 9 32 Width I D O D mm inch 870 34 9 32 780 30 23 32 Depth I D O D mm inch 204 8 1 16 289 11 13 32 Weight Net I D O D kg lb 9 20 35 77 Piping Pipe Diameter L...

Page 7: ...er and COP measured at 230 V indoor temperature 20 C outdoor 2 1 C 4 Heating extreme low temperature capacity Input Power and COP measured at 230 V indoor temperature 20 C outdoor 7 8 C 5 Specificatio...

Page 8: ...nput Power W 115 1 25k 1 85k COP W W 5 22 3 84 3 57 Kcal hW 4 52 3 30 3 07 Power Factor 94 Indoor Noise H L QLo dB A 42 33 30 Power Level dB 58 49 46 Outdoor Noise H L dB A 50 Power Level dB 65 Low Te...

Page 9: ...Height I D O D mm inch 290 11 7 16 540 21 9 32 Width I D O D mm inch 870 34 9 32 780 30 23 32 Depth I D O D mm inch 204 8 1 16 289 11 13 32 Weight Net I D O D kg lb 9 20 35 77 Piping Pipe Diameter Li...

Page 10: ...r and COP measured at 230 V indoor temperature 20 C outdoor 2 1 C 4 Heating extreme low temperature capacity Input Power and COP measured at 230 V indoor temperature 20 C outdoor 7 8 C 5 Specification...

Page 11: ...ent Random auto restart after power failure for safety restart operation Gas leakage protection Prevent compressor reverse cycle Inner protector to protect Compressor Noise prevention during soft dry...

Page 12: ...12 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control...

Page 13: ...13 5 Dimensions 5 1 Indoor Unit...

Page 14: ...14 5 2 Outdoor Unit...

Page 15: ...15 6 Refrigeration Cycle Diagram...

Page 16: ...16 7 Block Diagram...

Page 17: ...17 8 Wiring Connection Diagram 8 1 Indoor Unit...

Page 18: ...18 8 2 Outdoor Unit...

Page 19: ...19 9 Electronic Circuit Diagram 9 1 Indoor Unit...

Page 20: ...20 9 2 Outdoor Unit...

Page 21: ...21 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board...

Page 22: ...22 10 1 2 Power Printed Circuit Board 10 1 3 Indicator Printed Circuit Board...

Page 23: ...23 10 1 4 Receiver Printed Circuit Board 10 1 5 High Voltage Power Supply Printed Circuit Board...

Page 24: ...24 10 2 Outdoor Unit...

Page 25: ...prevent direct sunlight or rain be careful that heat radiation from the condenser is not obstructed There should not be any animal or plant which could be affected by hot air discharged Keep the space...

Page 26: ...evel gauge 2 Drill the piping plate hole with 70 mm hole core drill Line according to the left and right side of the installation plate The meeting point of the extended line is the center of the hole...

Page 27: ...27 1 For the right rear piping 2 For the right and right bottom piping 3 For the embedded piping This can be used for left rear piping and bottom piping also...

Page 28: ...older clamper This equipment must be properly earthed Ensure the colour of wires of outdoor unit and the terminal Nos are the same to the indoor s respectively Earth wire shall be Yellow Green Y G in...

Page 29: ...n tighten with torque wrench to the specified torque as stated in the table 11 3 3 Evacuation of the Equipment WHEN INSTALLING AN AIR CONDITIONER BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND...

Page 30: ...nit according to the diagram below 5 Secure the power supply cord and connecting cable onto the control board with the holder 6 Attach the control board cover back to the original position with screw...

Page 31: ...depending on the air conditioner settings and the operation environment The final shifted value will be used as internal setting temperature and it is updated continuously whenever the electrical pow...

Page 32: ...fting will take place whenever operation mode changed from Cool Soft Dry to Heating or vice versa 12 1 6 Fan Operation Fan Operation is used to circulate air in a room During operation indoor fan run...

Page 33: ...ic angles of direction is determined by operation mode heat exchanger temperature and intake air temperature and manual angles of direction can be adjusted using remote control 12 4 1 Vertical Airflow...

Page 34: ...ack quiet operation is not memorised C Control contents 1 Fan speed is changed from normal setting to quiet setting of respective fan speed This is to reduce sound of Hi Me Lo for 3dB some models more...

Page 35: ...ove judgment the decided operation will start operate earlier than the set time as shown below 12 8 2 OFF Timer Control OFF timer can be set using remote control the unit with timer set will stop oper...

Page 36: ...he Patrol Operation during unit start default with OFF ON button press Patrol button and hold for 5 seconds then release To disable the Patrol Operation press Patrol button and hold for 15 seconds the...

Page 37: ...ration is allowed Even if Fan Speed button is pressed no signal is sent to air conditioner and no change on LCD display During Patrol individual operation if e ion stops Indoor Fan stop operation d Ai...

Page 38: ...tion is OFF During Patrol individual mode Power supply to Patrol sensor is OFF Patrol LED and Timer LED blinking and H58 is indicated Timer LED will always blinking and the Patrol LED continues blinki...

Page 39: ...power to the e ion Air Purifying System If abnormal discharge is detected at filter short circuited due to water or dust adhesion etc the e ion indicator blinks immediately f Power failure During e io...

Page 40: ...at microcontroller supplied to filter during e ion stop due to PCB or filter s high voltage power supply damage Operations except e ion continue Both Timer indicator and e ion indicator blink Troubles...

Page 41: ...C Pressing TEMP down button at the remote control 10 C Pressing TEMP up button at the remote control During the operation of this mode The indoor fan speed will remain at Hi fan tap all the time inclu...

Page 42: ...d X value for 5 seconds the frequency instructed will be increased 3 However if total outdoor unit running current exceeds Y value compressor will be stopped immediately for 3 minutes 4 The first 30 m...

Page 43: ...ture indoor piping temperature is below 4 C During Heating operations Indoor piping temperature indoor suction is under 5 C b Control contents Compressor stops and restart after 3 minutes If the condi...

Page 44: ...normal operation 13 2 4 Freeze Prevention Control 2 1 Control start conditions During Cooling operation and soft dry operation During thermo OFF condition indoor intake temperature is less than 10 C...

Page 45: ...e at limited freq if indoor intake air temperature is 30 C or above 13 3 2 Outdoor Air Temperature Control The Max current value is regulated when the outdoor air temperature rise above 14 C in order...

Page 46: ...ON button may be used together with remote control to set change the advance setting of air conditioner operation 3 REMOTE CONTROL NUMBER SWITCH MODE The Remote Control Number Switch Mode will be act...

Page 47: ...ET button for more than 10 seconds by using pointer Press TIMER SET button until a beep sound is heard as confirmation of transmission code changed To change the air quality sensor sensitivity Press a...

Page 48: ...problems before inspecting the refrigeration cycle Such problems include insufficient insulation problem with the power source malfunction of a compressor and a fan The normal outlet air temperature a...

Page 49: ...s after an operation is started Cooling Mode Heating Mode Low Pressure High Pressure Electric current during operating Low Pressure High Pressure Electric current during operating Condition of the air...

Page 50: ...display memorized error Protective operation status 1 Turn power on 2 Press the CHECK button on the remote controller continuously for 5 seconds 3 will be displayed on the remote controller display No...

Page 51: ...air temperature sensor abnormality Continuous for 5s Outdoor air temperature sensor open or short circuit Outdoor air temperature sensor lead wire and connector H28 Outdoor heat exchanger temperature...

Page 52: ...module overheat PCB faulty Outdoor air circuit fan motor F97 Compressor overheating protection 3 times happen within 30 minutes Compressor overheat Insufficient refrigerant F98 Total running current...

Page 53: ...ransmission is checked whether it is normal Malfunction Caused Faulty indoor unit PCB Faulty outdoor unit PCB Indoor unit outdoor unit signal transmission error due to wrong wiring Indoor unit outdoor...

Page 54: ...tion Decision Conditions During startup and operation of cooling and heating the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors Malfunction Cause...

Page 55: ...Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors Malfunction Caused F...

Page 56: ...ons A current transformer CT is detected by checking the compressor running frequency rated frequency and CT detected input current less than 0 65A for continuously 20 seconds Malfunction Caused CT de...

Page 57: ...termine abnormal fan motor feedback of rotation 2550rpm or 50rpm Malfunction Caused Operation stops due to short circuit inside the fan motor winding Operation stops due to breaking of wire inside the...

Page 58: ...Decision Conditions During startup and operation of cooling and heating the temperatures detected by the indoor heat exchanger temperature sensor 1 are used to determine sensor errors Malfunction Caus...

Page 59: ...Decision Conditions During startup and operation of cooling and heating the temperatures detected by the indoor heat exchanger temperature sensor 2 are used to determine sensor errors Malfunction Caus...

Page 60: ...Abnormal Malfunction Decision Conditions During standby of cooling and heating operation e ion breakdown occurs and air conditioner stops operation Malfunction Caused Faulty indoor main PCB Faulty in...

Page 61: ...tion Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors Malfunction Caused Faul...

Page 62: ...tion Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors Malfunction Caused Fau...

Page 63: ...ion Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor discharge pipe temperature sen sor are used to determine sensor errors Malfunction...

Page 64: ...lfunction Decision Conditions The supply power is detected for its requirement by the indoor outdoor transmission Malfunction Caused Wrong models interconnected Wrong indoor unit and outdoor unit PCBs...

Page 65: ...ity Malfunction Decision Conditions If Patrol sensor feedback is 0V or 5V continuous for 6 hours Error will display only when the Patrol operation is ON Malfunction Caused Faulty connector connection...

Page 66: ...ration is used to determine abnormal fan motor Malfunction Caused Operation stops due to short circuit inside the fan motor winding Operation stops due to breaking of wire inside the fan motor Operati...

Page 67: ...uring heating operation the temperature detected by the indoor pipe temperature sensor is above 60 C Malfunction Caused Clogged air filter of the indoor unit Dust accumulation on the indoor unit heat...

Page 68: ...ecision Conditions Freeze prevention control takes place when indoor pipe temperature is lower than 2 C Malfunction Caused Clogged air filter of the indoor unit Dust accumulation on the indoor unit he...

Page 69: ...nditions When heating operation when indoor pipe temperature is below 10 C When cooling operation when indoor pipe temperature is above 45 C Malfunction Caused Connector in poor contact Faulty sensor...

Page 70: ...eration of cooling and heating when Power Factor Correction PFC protection circuitry at the outdoor unit main PCB senses abnormal high DC voltage level Malfunction Caused DC voltage peak due to power...

Page 71: ...checking the CT detected input current value and the compressor running frequency During startup and operating of cooling and heating input current 8 78 256 A Hz x compressor running frequency 0 25 G...

Page 72: ...lfunction Decision Conditions A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit Malfunction Caused Compressor terminal disco...

Page 73: ...detected by the outdoor pipe temperature sensor Malfunction Caused Outdoor pipe temperature rise due to short circuit of hot discharge air flow Outdoor pipe temperature rise due to defective of outdo...

Page 74: ...ated Heat Sink Overheating During operation of cooling and heating when heat sink temperature data 90 C is detected by the heat sink temperature sensor Malfunction Caused IPM overheats due to short ci...

Page 75: ...n of cooling and heating when compressor tank temperature data 112 C is detected by the compressor tank temperature sensor Malfunction Caused Refrigerant shortage refrigerant leakage 2 3 way valve clo...

Page 76: ...detected by checking the input current value being detected by current transformer CT with the compressor running Malfunction Caused Over current due to compressor failure Over current due to defectiv...

Page 77: ...door unit PCB Troubleshooting Checking the power transistor Never touch any live parts for at least 10 minutes after turning off the circuit breaker If unavoidable necessary to touch a live part make...

Page 78: ...Removal Procedures 16 1 1 To remove front grille 16 1 2 To remove power electronic controller High voltages are generated in the electrical parts area by the capacitor Ensure that the capacitor has di...

Page 79: ...79 16 1 3 To remove discharge grille...

Page 80: ...80 16 1 4 To remove control board 16 1 5 To remove cross flow fan and indoor fan motor...

Page 81: ...81...

Page 82: ...er be careful of electrostatic discharge 1 Remove the 3 screws of the Top Panel Fig 1 2 Remove the 6 screws of the Front Panel Fig 2 3 Remove the screw of the Terminal Board Cover 4 Remove the Top Cov...

Page 83: ...83 17 Technical Data 17 1 Operation Characteristics 17 1 1 CU NE9JKE 1...

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Page 87: ...87 17 1 2 CU NE12JKE 1...

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Page 91: ...80 0 68 22 0 C 3 09 2 12 0 56 2 88 2 04 0 60 2 68 1 97 0 64 2 44 1 88 0 69 230V Outdoor Temp C Indoor wet bulb temp 30 35 40 46 TC SHC IP TC SHC IP TC SHC IP TC SHC IP 17 0 C 3 47 2 63 0 83 3 24 2 52...

Page 92: ...Exploded View and Replacement Parts List 18 1 Indoor Unit Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service...

Page 93: ...NAL BOARD COMPLETE 1 CWA28C2357 O 23 ELECTRONIC CONTROLLER MAIN 1 CWA73C4525 CWA73C4527 CWA73C4526 CWA73C4528 O 24 ELECTRONIC CONTROLLER POWER 1 CWA745322 O 25 ELECTRONIC CONTROLLER INDICATOR 1 CWA745...

Page 94: ...94 18 2 Outdoor Unit Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts...

Page 95: ...011434 CWB011523 O 18 4 WAY VALVE 1 CWB001037J O 19 2 WAY VALVE LIQUID 1 CWB021333 O 20 DISCHARGE MUFFLER 1 CWB121021 O 21 V COIL CO 4 WAY VALVE 1 CWA43C2144J 22 V COIL COMPLETE FOR EXP VALVE 1 CWA43C...

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