Klimaire KSIV SERIES Troubleshooting Manual Download Page 2

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Contents

Safety Caution .......................................................................................................3

General Troubleshooting ......................................................................................4

Complain Record Form ..........................................................................................6

Information Inquiry ...............................................................................................8

Error Diagnosis and Troubleshooting Without Error Code ...............................11

5.1

Remote maintenance ...................................................................................11

5.2

Field maintenance .......................................................................................12

Quick Maintenance by Error Code ......................................................................17

Troubleshooting by Error Code ...........................................................................18

7.1

E0 / F4 (EEPROM parameter error diagnosis and solution) ............................18

7.2

E1 (Indoor and outdoor unit communication error diagnosis and solution) ...19

7.3

E2 (Zero-crossing detection error diagnosis and solution) .............................21

7.4

E3 / F5 (Fan speed is operating outside of the normal range diagnosis and
solution) ......................................................................................................22

7.5

E4/E5/F1/F2/F3 (Open circuit or short circuit of temperature sensor diagnosis

and solution) ...............................................................................................25

7.6

E7 (Indoor PCB / Display board communication error diagnosis and solution) 26

7.7

EC (Refrigerant Leakage Detection diagnosis and solution) ..........................27

Troubleshooting

Summary of Contents for KSIV SERIES

Page 1: ...KSIV SERIES TROUBLESHOOTING SERVICE MANUAL...

Page 2: ...error diagnosis and solution 18 7 2 E1 Indoor and outdoor unit communication error diagnosis and solution 19 7 3 E2 Zero crossing detection error diagnosis and solution 21 7 4 E3 F5 Fan speed is oper...

Page 3: ...trong current protection diagnosis and solution 29 7 10 P1 Over voltage or too low voltage protection diagnosis and solution 30 7 11 P2 High temperature protection of IPM module diagnosis and solution...

Page 4: ...tatic gloves or wrist strap to avoid damage to the board WARNING Electricity remains in capacitors even when the power supply is off Ensure the capacitors are fully discharged before troubleshooting T...

Page 5: ...erant leak detected TS27 1 times ON F0 Current overload protection TS28 2 times ON F1 Outdoor room temperature sensor T4 is in open circuit or has short circuited TS25 3 times ON F2 Condenser coil tem...

Page 6: ...D RED Solution 1 Standby normally ON OFF 2 Operate normally OFF ON 3 Compressor driven chip EEPROM parameter error ON FLASH TS18 4 IPM malfunction or IGBT over strong current protection Flash OFF TS29...

Page 7: ...outlet C F Installation Condition Information Indoor temperature C F Indoor humidity RH Outdoor temperature C F Outdoor humidity RH Length of Connecting pipe Pipe diameter Gas pipe Liquid pipe Length...

Page 8: ...oor coil temperature T4 Ambient temperature Tb Outlet temperature of indoor coil TP Discharge temperature TH Sunction temperature FT Targeted Frequency Fr Actual Frequency IF Indoor fan speed OF Outdo...

Page 9: ...hear beeps for two seconds which means the unit goes into parameter checking mode Use the LED or DO NOT DISTURB and SWING or AIR DIRECTION buttons to cycle through information displayed Pressing LED o...

Page 10: ...ture Ambient temperature Outlet temperature of indoor coil Discharge temperature Suction temperature Targeted frequency Actual frequency IF Indoor fan speed 0 1 2 3 4 14 FF OFF Low speed Medium speed...

Page 11: ...Troubleshooting 10 Displayed code Explanation Displayed value Meaning Additional Notes A0 Reserved 0 FF 2 28 5 20 5 25 A1 0 1 2 3 4 5 6 L A U T A 5 T...

Page 12: ...field maintenance No Problem Solution 1 Unit will not start TS13 TS14 2 The power switch is on but fans will not start TS13 TS14 3 The temperature on the display board cannot be set TS13 TS14 4 Unit...

Page 13: ...TS16 5 Condenser Outdoor fan will not start TS15 TS16 6 Unit runs but shortly stops TS15 TS16 7 Compressor short cycles due to overload TS15 TS16 8 High discharge pressure TS15 TS16 9 Low discharge p...

Page 14: ...frequently Unit will not start The power switch is on but fans will not start The temperature on the display board cannot be set Unit is on but the wind is not cold hot Unit runs but shortly stops The...

Page 15: ...switch is on but fans will not start The temperature on the display board cannot be set Unit is on but the wind is not cold hot Unit runs but shortly stops The unit starts up and stops frequently Unit...

Page 16: ...Condenser Outdoor fan will not start Unit runs but shortly stops Compressor short cycles due to overload High discharge pressure Low discharge pressure High suction pressure Low suction pressure Unit...

Page 17: ...art but fans run Compressor and condenser outdoor fan will not start Evaporator indoor fan will not start Condenser Outdoor fan will not start Unit runs but shortly stops Compressor short cycles due t...

Page 18: ...Sensor x x x x x x x T3 Sensor x x x x x x x x x T4 Sensor x x x x x x x x x TP Sensor x x x x x x x x x Reactor x x x x x x x x Compressor x x x x x x x x Additional refrigerant x x x x x x x x Part...

Page 19: ...CB F4 The unit is operating normally NO Remarks EEPROM A read only memory whose contents can be erased and reprogrammed using a pulsed voltage The location of the EEPROM chip on the indoor and outdoor...

Page 20: ...N YES Is the voltage moving alternately between Positive and negative Check the outdoor wiring connection Is it normal Check the reactor YES Is it normal Replace the outdoor PCB Power on YES Is the e...

Page 21: ...ernately between 25V to 25V If the outdoor unit has malfunction the voltage will move alternately with positive value While if the indoor unit has malfunction the voltage will be a certain value Use a...

Page 22: ...rval is abnormal Recommended parts to prepare Connection wires PCB Troubleshooting and repair Check the connections and power supply Correct the connections Turn on the unit when the power supply is g...

Page 23: ...tart the unit after 2 minutes Is it within normal parameters Replace the fan motor Does a problem remain The unit is operating normally NO Shut off the power supply Rotate the fan by hand YES Does it...

Page 24: ...Color Signal Voltage 1 Red Vs Vm 280V 380V 2 3 Black GND 0V 4 White Vcc 14 17 5V 5 Yellow Vsp 0 5 6V 6 Blue FG 14 17 5V DC motor voltage input and output voltage 115V No Color Signal Voltage 1 Red Vs...

Page 25: ...t the unit running in fan mode at high fan speed After running for 15 seconds measure the voltage of pin1 and pin2 If the value of the voltage is less than 100V 208 240V power supply or 50V 115V power...

Page 26: ...repair Check the connection between temperature sensor and PCB Replace indoor PCB E4 E5 or outdoor PCB F1 F2 F3 Is it within acceptable parameters Is it properly wired Ensure proper connections NO Me...

Page 27: ...s to prepare Communication wire Indoor PCB Display board Troubleshooting and repair Is it still displaying the error code The unit functions normally Check the wirings and connections Are all the conn...

Page 28: ...on happens 3 times the display area will show EC and AC will turn off Recommended parts to prepare T2 sensor Indoor PCB Additional refrigerant Troubleshooting and repair Power off then restart the uni...

Page 29: ...able parameters Are they properly connected Is it in working order Replace the outdoor unit Is it in working order Check system for blockages YES Stop the unit NO Clear the blockage Yes Check the comp...

Page 30: ...Does an error exist Ensure proper connections or replace the wires and connectors YES Check the IPM NO Is it in working order Replace the IPM board or replace the outdoor PCB NO Check the outdoor fan...

Page 31: ...the unit NO Check the connections and wires YES Are they in working order Ensure proper connections or replace the wires NO Power on and measure the voltage between P and N YES While the unit is in s...

Page 32: ...ilure Recommended parts to prepare Outdoor PCB IPM module board Troubleshooting and repair Check the fastening screws on the PCB and IPM radiator Are they fixed tightly Replace the outdoor control PCB...

Page 33: ...e wiring between the PCB and compressor Is it improperly wired Ensure proper connections or replace the wires and connectors YES Check the IPM NO Is it functioning properly Replace the IPM board or re...

Page 34: ...r Unit Disassembly 2 Measure the resistance value of the sensor using a multi meter 3 Check corresponding temperature sensor resistance value table Refer to Chapter 8 Appendix Note The picture and the...

Page 35: ...ooting 30 Resistance Value KSK103D33UEZ3 KSN140D21UFZ KTM240D57UMT Blue Red 2 02 1 28 0 62 Blue Black Red Black Note The picture and the value are only for reference actual condition and specific valu...

Page 36: ...upply 2 Discharge electrolytic capacitors and ensure all energy storage unit has been discharged 3 Disassemble outdoor PCB or disassemble IPM board 4 Measure the resistance value between P and U V W N...

Page 37: ...t improvement Consult with the sales agency or manufacturer for details 2190 NW 89 Place Doral FL 33172 USA Tel 305 593 8358 Fax 305 675 2212 www klimaire com sales klimaire com The Klimaire logo is a...

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