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KSIQ012-H118-I, KSIQ018-H216-I, KSIQ024-H216-I, KSIQ036-H216-I
Model Numbers:
WARNING
Installation MUST conform with local building codes or, in the absence of local codes, with the
National Electrical Code NFPA70/ANSI C1-1993 or current edition and Canadian Electrical
Code Part1 CSA C.22.1.
The information contained in the manual is intended for use by a qualified service technician
familiar with safety procedures and equipped with the proper tools and test instruments
Installation or repairs made by unqualified persons can result in hazards to you and others.
Failure to carefully read and follow all instructions in this manual can result in equipment
malfunction, property damage, personal injury and/or death.
This service is only for service engineer to use.
Split DC Inverter
Air Conditioner
SERIES
Troubleshooting
Mark of Superior Quality
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Table of Contents
Related Manuals for Klimaire KSIQ Series
Summary of Contents for Klimaire KSIQ Series
- Page 1 Split DC Inverter Air Conditioner SERIES Troubleshooting KSIQ012-H118-I, KSIQ018-H216-I, KSIQ024-H216-I, KSIQ036-H216-I Model Numbers: WARNING Installation MUST conform with local building codes or, in the absence of local codes, with the National Electrical Code NFPA70/ANSI C1-1993 or current edition and Canadian Electrical Code Part1 CSA C.22.1.
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Page 2: Troubleshooting
Troubleshooting Safety Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity power in capacitor. Electrolytic Capacitors (HIGH VOLTAGE! CAUTION!) For other models, please connect discharge resistance (approx.100Ω 40W) or soldering iron (plug) between +, - terminals of the electrolytic capacitor on the contrary side of the outdoor PCB. -
Page 3: Indoor Unit Error Display
9.1 Indoor Unit Error Display Operation Timer lamp Display LED STATUS lamp ☆ 1 time Indoor unit EEPROM parameter error ☆ 2 times Indoor / outdoor units communication error ☆ 3 times Zero-crossing signal detection error Indoor fan speed has been out of control ☆... - Page 4 Trouble shooting: Use the remote controller. If the unit does not respond to the remote, the indoor PCB needs to be replaced; if the unit does respond, then the display board needs to be replaced.
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Page 5: Outdoor Unit Error Display(Tbd)
9.2 Outdoor unit error display(TBD) For KSIQ012-H118-O, connect to PFC Capacitor when is on, 100-130V AC output connect to reactor when is on, 100-130V AC output US-KFR-35W/BP3N1-(115V+RX62T+41560).D.13.WP2-1 CN4_1CN4_2 CN4_3CN4_4 connect to Ground bridge connect to N-line REACTOR DSA1 (100-130VAC INPUT) connect to L-line (100-130VAC INPUT) CN16... - Page 6 For KSIQ018-H216-O, KSIQ024-H216-O, 290-330VDC standby connect to the DR module 210-300VDC running bridge connect to reactance connect to earth fuse 250V 30A [V1.8] 2015-01-16 CN22 R141 CN6-1 PTC1 DSA1 R154 N-IN R155 R153 power supply 208-230V AC connect to the terminal L-IN FUSE1 65T 250V30A...
- Page 7 For KSIQ036-H216-O, Connect to the Indoor evap.pipe out temp. sensor T2B-A、T2B-B、T2B-C、T2B-D、T2B-E external drive DC fan 6 5 4 3 2 1 motor connector Electric Expansion Electric Expansion Electric Expansion Electric Expansion Electric Expansion testPort external drive DC fan external drive DC fan Value C Value E communication...
- Page 8 IPM board, connect to DC fan motor TO MAIN 0VAC (standby) CN19 CN55 10-200VAC (running) EU-KFR105W/BP2T3N1-350(767).D.13.MP2-1 202302141237 IPM2 CN57 Debug connect to the compressor 0VAC (standby) 10-200VAC (running) CAPACITOR Voltage IPM1 290-330VDC (standby) 210-300VDC (Running) C N 54 L -I N2 EARTH PFC-L1 [ 1.
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Page 9: Diagnosis And Solution
9.3 Diagnosis and Solution 9.3.1 EEPROM parameter error diagnosis and solution(E0/F4) E0/F4 Error Code Malfunction decision Indoor or outdoor PCB main chip does not receive feedback conditions from EEPROM chip. Supposed causes Installation mistake ● PCB faulty ● Trouble shooting: Power off, then restart the unit 2 minutes later. - Page 10 9.3.2 Indoor / outdoor unit’s communication diagnosis and solution(E1) Error Code Malfunction decision Indoor unit does not receive the feedback from outdoor unit during conditions 110 seconds and this condition happens four times continuously. Supposed causes Wiring mistake ● Indoor or outdoor PCB faulty ●...
- Page 11 Remark: Use a multimeter to test the DC voltage between 2 port and 3 port of outdoor unit. The red pin of multimeter connects with 2 port while the black pin is for 3 port. When AC is normal running, the voltage will move alternately between -25V to 25V.
- Page 12 9.3.3 Zero crossing detection error diagnosis and solution (E2) Error Code Malfunction decision When PCB does not receive zero crossing signal feedback for 4 conditions minutes or the zero crossing signal time interval is abnormal. Supposed causes Connection mistake ● PCB faulty ●...
- Page 13 9.3.4 Fan speed has been out of control diagnosis and solution(E3) E3/F5 Error Code Malfunction decision When indoor fan speed keeps too low (300RPM) for certain time, conditions the unit will stop and the LED will display the failure. Supposed causes Wiring mistake ●...
- Page 14 Index 1: 1:Indoor or Outdoor DC Fan Motor(control chip is in fan motor) Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not in the range showing in below table, the PCB must has problems and need to be replaced.
- Page 15 9.3.5 Open circuit or short circuit of temperature sensor diagnosis and solution(E5) E4/E5/F1/F2/F3 Error Code Malfunction decision If the sampling voltage is lower than 0.06V or higher than 4.94V, conditions the LED will display the failure. Supposed causes Wiring mistake ●...
- Page 16 9.3.6 Refrigerant Leakage Detection diagnosis and solution(EC) Error Code Malfunction decision Define the evaporator coil temp.T2 of the compressor just starts conditions running as Tcool. In the beginning 5 minutes after the compressor starts up, if T2 ° C ( °F) Tcool－35.6 does not keep continuous 4...
- Page 17 9.3.6 Overload current protection diagnosis and solution(F0) Error Code Malfunction decision An abnormal current rise is detected by checking the specified conditions current detection circuit. Supposed causes Power supply problems. ● System blockage ● PCB faulty ● Wiring mistake ● Compressor malfunction ●...
- Page 18 9.3.7 IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0) Error Code Malfunction decision When the voltage signal that IPM send to compressor drive chip conditions is abnormal, the display LED will show “P0” and AC will turn off. Supposed causes Wiring mistake ●...
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Page 19: For Example
For example: Note: The photos below are only for reference, it’s may be not same totally with the ones on your side. - Page 22 For 30K~36K: At first test the resistance between every two ports of U, V, W of IPM and P, N. If any result of them is 0 or close to 0, the IPM is defective. Otherwise, please follow the procedure below: Check whether the power voltage Restart the unit when the power supply Check whether the power voltage...
- Page 23 9.3.8 Over voltage or too low voltage protection diagnosis and solution(P1) Error Code Malfunction decision An abnormal voltage rise or drop is detected by checking the conditions specified voltage detection circuit. Supposed causes Power supply problems. ● System leakage or block ●...
- Page 24 9.3.9 High temperature protection of compressor top diagnosis and solution(P2) Error Code Malfunction decision If the sampling voltage is not 5V, the LED will display the failure. conditions Supposed causes Installation mistake ● Power supply problems. ● System leakage or block ●...
- Page 25 9.3.10 Inverter compressor drive error diagnosis and solution(P4) Error Code Malfunction decision An abnormal inverter compressor drive is detected by a special conditions detection circuit, including communication signal detection, voltage detection, compressor rotation speed signal detection and so on. Supposed causes Wiring mistake ●...
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Page 26: Ipm Continuity Check
IPM continuity check Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure the resistance between P and UVWN; UVW and N. Digital tester Normal resistance value Digital tester Normal resistance value (+)Red (-)Black... - Page 27 For 30K~36K: At first test the resistance between every two ports of U, V, W of IPM and P, N. If any result of them is 0 or close to 0, the IPM is defective. Otherwise, please follow the procedure below: Check whether the power voltage Restart the unit when the power supply Check whether the power voltage...
- Page 28 9.3.11 Low pressure protection diagnosis and solution(P6) Error Code Malfunction decision When the pressure of system reach a certain value, the low conditions pressure protector will switch off. After the pressure resume to normal ,the protection code will disappear. Supposed causes Wiring mistake ●...
- Page 29 Main parts check 1. Temperature sensor checking Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Temperature sensors. Room temp.(T1) sensor, Indoor coil temp.(T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor discharge temp.(TP) sensor. Measure the resistance value of each winding by using the multi-meter.
- Page 30 Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4 (° C --K) ° C ° F K Ohm ° C ° F K Ohm ° C ° F K Ohm ° C ° F K Ohm 115.266 12.6431 2.35774 0.62973 108.146 12.0561 2.27249...
- Page 31 Appendix 2 Temperature Sensor Resistance Value Table for TP (°C --K) ° C ° F K Ohm ° C ° F K Ohm ° C ° F K Ohm ° C ° F K Ohm 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595...
- Page 32 Appendix 3: 9ΔT(℃) ΔT(℉) = ° C ° F ° C ° F ° C ° F ° C ° F ° C ° F 69.8 123.8 179.6 235.4 24.8 71.6 125.6 181.4 237.2 26.6 73.4 127.4 183.2 28.4 75.2 129.2 240.8 30.2...
- Page 33 Appendix 4 Normal voltage of P and N 208-240V(1-phase,3-phase) 380-420V(3-phase) In standby 310VDC around 530VDC around In operation With passive PFC With partial active With fully active module PFC module PFC module >200VDC >310VDC >370VDC >450VDC...
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Page 34: Compressor Checking
2.Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value ASN98D22UFZ ASM135D23UFZ ATF235D22UMT ATF250D22UMT Blue - Red 1.75 Ω 0.75 Ω 0.75 Ω 1.57Ω Blue - Black Red - Blue... -
Page 35: Fan Motor
3. IPM continuity check Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure the resistance between P and UVWN; UVW and N. Digital tester Normal resistance value Digital tester Normal resistance value (+)Red... -
Page 36: Pressure On Service Port
5: Pressure On Service Port Cooling chart: °F ° C (23.89) (29.44) (35) (40.56) (46.11) 70/59 10.1 75/63 10.7 80/67 11.2 °F ° C (23.89) (29.44) (35) (40.56) (46.11) 70/59 75/63 80/67 °F ° C (23.89) (29.44) (35) (40.56) (46.11) 70/59 0.82 0.78... - Page 37 Heating Chart: 57/53 47/43 37/33 27/23 17/13 °F (13.89/11.67) (8.33/6.11) (2.78/0.56) (-2.78/-5) (-8.33/-10.56) ° C 30.3 28.5 25.3 22.8 20.8 32.5 30.0 26.6 25.4 23.3 33.8 31.5 27.8 26.3 24.9 57/53 47/43 37/33 27/23 17/13 °F (13.89/11.67) (8.33/6.11) (2.78/0.56) (-2.78/-5) (-8.33/-10.56) °...
- Page 38 Fax (305) 675-2212 www.klimaire.com sales@klimaire.com The Klimaire logo is a registered Trademark of Klimaire Products inc. Copyright 2017 Klimaire Products Inc. The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details.
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