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Carrier 38QUA009DS, Service Manual, Page: 89 / 116

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Carrier 38QUA009DS Service Manual Download Page 89

 

 

86 

16. Troubleshooting 

Safety 

Electricity is stored in capacitors, even when the power supply is shut off. Do not forget to discharge the electricity in the 

capacitors. 

 

 

Electrolytic Capacitors

 

(HIGH VOLTAGE! CAUTION!) 

 

 

For other models, For other models, connect a discharge resistor (approx.100

Ω 40W) or a soldering iron plug between 

the + and - terminals of the electrolytic capacitor on the opposite side of the outdoor printed circuit board (PCB). 

 

 

Note: The picture above is for reference purposes only. The design of the devices depicted may vary by model. 

 

 

Summary of Contents for 38QUA009DS

Page 1: ...fication of Power 12 Installation Details 13 Operation Characteristics 14 Electronic Function 15 Solar Panel 16 Troubleshooting 17 Disassembly Instructions WARNING Installation MUST conform with local...

Page 2: ...cteristics 50 9 Sound Level 51 9 1 Indoor unit 51 9 2 Outdoor unit 53 10 Accessories 54 11 The Specification of Power 56 12 Installation Details 59 12 1 Location selection 59 12 2 Indoor unit installa...

Page 3: ...s 80 16 Troubleshooting 86 16 1 Indoor Unit Error Display 87 16 2 Outdoor unit error display 88 For 9K 24K outdoor unit 88 For 36K 48K Outdoor Unit 88 Outdoor check function 89 16 3 Diagnosis and Solu...

Page 4: ...t Sharp edges could cause injury be especially careful of the case edges and the fins on the condenser and evaporator For installation always contact the dealer or an authorized service center Do not...

Page 5: ...epair of product Low refrigerant levels may cause failure of product Install the drain hose to ensure that water is drained away properly A bad connection may cause water leakage Keep level even when...

Page 6: ...l injury Replace the all batteries in the remote control with new ones of the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion Do not recha...

Page 7: ...A6 Ducted 40QSS018DS Cassette 24K 40QTD024DS 38QUA024DS Floor Ceiling 40QZL024DS A5 Ducted 40QSM024DS A6 Ducted 40QSS024DS Cassette 36K 40QTD036DS 38QUA036DS Floor Ceiling 40QZL036DS A5 Ducted 40QSM0...

Page 8: ...5 2 2 Part names of Indoor Outdoor units Cassette Unit...

Page 9: ...6 A5 Ducted Units A6 Ducted Units...

Page 10: ...7 Floor ceiling Units...

Page 11: ...8 HESP DUCTED Units...

Page 12: ...fresh air intake to outdoor Continually inhale the fresh air to improve the quality of the indoor air fulfills air quality more healthy and comfortable 2 3 1 3 Easy Maintenance Clean the filter Option...

Page 13: ...roller or a central controller to realize remote on off control function or group control function 2 3 1 5 Built in Drain Pump Optional Built in drain pump can lift the water to 750mm upmost It s conv...

Page 14: ...th a receiver in the E box Move out the display and fix it in other place even in the distance of 2m The unit will realized remoter control The wired controller and the display board can display the e...

Page 15: ...Fire proof Controller Box Electrical control box adopts new design which can meet higher fire safety requirements 2 3 2 4 Fresh Air Fresh air intake function bring you fresh and comfortable air feeli...

Page 16: ...750mm upmost It s convenient to install drainage piping under most space condition 2 3 2 7Terminals For Alarm Lamp and Long distance On off Controller Connection Are Standard Reserve terminals for th...

Page 17: ...air 2 3 3 2 Brief Design Brief design that is suitable for any interior will not only give you cooling and heating performance but also upgrade your lifestyle 2 3 3 3 3D Airflow Vertical air flow and...

Page 18: ...D Panel 2 3 3 5 Convenience Operating and Easy Maintenance Remote controller as standard wired controller for optional The filter without screw fixed can be took out easily 2 3 3 6 Easy Installation S...

Page 19: ...t 300mm 2 3 4 3 Constant air volume control For ordinary duct when the static pressure exceeds the expected range it is fairly difficult even for an experienced installer to calculate and adjust the a...

Page 20: ...e been detached heat exchanger and water receiver tray in behind can be seen very clearly Dust can be easily removed from the inside by vacuum 2 3 4 7 Fresh air intake function Optional Install one du...

Page 21: ...o improve the fresh air volume There are reserved ports for this motor on main PCB Standard for 3D inverter units and only optional for DC inverter 53 160 units 2 3 4 8 Drain pump Optional Built in dr...

Page 22: ...r spacious and large rooms like large stores and factories 2 3 5 2 Easy maintenance The unit can be opened from top or bottom The air outlet flange is isolated from either top panel or base panel whic...

Page 23: ...L M H1 H2 W1 W2 18 mm 920 210 635 570 65 713 35 119 815 200 80 960 350 120 143 95 150 in 36 22 8 27 25 00 22 44 2 56 28 07 1 38 4 69 32 09 7 87 3 15 37 80 13 78 4 72 5 63 3 74 5 91 24 mm 920 270 635...

Page 24: ...de Liquid side 4 install hanger Body Drain pipe 32 Fresh air intake 65 647 647 50 Drain hole for Service 545 570 260 68 42 157 126 44 Wiring connection port 75 E parts box 4 Screw hole for install pan...

Page 25: ...A B A B Service hole for draining pump Fresh air intake 75 55 80 80 4 install hanger Gas side Liquid side E parts box 135 90 Panel Body 92 92 92 92 D D 92 92 D D D D 92 92 92 92 92 92 92 92 D D Capaci...

Page 26: ...tion port 204 94 Fresh air intake Drain discharge port Refrigerant pipe hole Hanging arm D Capacity Btu h A B C D 18K 24K mm 1068 675 235 983 inch 42 05 26 57 9 25 38 70 36K mm 1285 675 235 1200 inch...

Page 27: ...700 140 926 50 175 1001 228 5 1140 598 80 150 130 155 inch 43 3 9 8 30 5 27 6 5 5 36 5 2 0 6 9 39 4 9 0 0 2 44 9 23 5 3 1 5 9 5 1 6 1 36 mm 1360 249 774 700 140 1186 50 175 1261 228 5 1400 598 80 150...

Page 28: ...same of the air inlet flange 10 5 2 3 2 10 280 280 1000 500 1000 500 385 air inlet duct flange 385 air outlet duct flange 1188 air outlet duct flange 1188 air inlet duct flange 1436 suspension positi...

Page 29: ...nly for reference The appearance of your units may be different Model W D H W1 A B 38QUA018DS mm 845 363 702 914 540 350 inch 33 3 14 3 27 6 36 0 21 3 13 8 38QUA024DS 38QUA036DS mm 946 410 810 1030 67...

Page 30: ...27 Note The above drawing is only for reference The appearance of your units may be different Model W D H W1 A B 38QUA048DS 38QUA060DS mm 952 415 1333 1045 634 404 inch 37 5 16 3 52 5 41 1 25 0 15 9...

Page 31: ...e enough space required for installation and maintenance 200mm 7 87in or more 300mm 11 81in or more 600mmx600mm 23 62inx23 62in Check orifice All the indoor units reserve the hole to connect the fresh...

Page 32: ...29 Ceiling floor Units HESP DUCTED Unit 500mm or more 600mm or more Indoor unit 600mmx600mm Maintenance and repair space...

Page 33: ...30 4 2 Outdoor Unit More than 30cm 11 81in More than 60cm 23 62in More than 200cm 78 74in Air inlet Air inlet More than 30cm 11 81in Air outlet Wall or obstacle Maintain channel More than 60cm 23 62in...

Page 34: ...CONDENSER Compressor 2 WAY VALVE 3 WAY VALVE 4 WAY VALVE COOLING HEATING T2B Evaporator temp sensor outlet T1 Room temp sensor T3 Condenser temp sensor T5 Discharge temp sensor T4 Ambient temp sensor...

Page 35: ...32 6 Wiring Diagram 6 1 Indoor Unit 40QTD018DS 40QTD024DS 40QTD036DS 40QTD048DS...

Page 36: ...33 40QSM018DS 40QSM024DS 40QSM036DS 40QSM048DS...

Page 37: ...34 40QZL018DS 40QZL024DS 40QZL036DS...

Page 38: ...35 40QZL048DS 40QZL060DS...

Page 39: ...36 40QSS018DS 40QSS024DS 40QSS036DS 40QSS048DS 40QSM060DS Note If the short connector J7 or JR6 is losed when you don t use the on off function the LED displays error code CP...

Page 40: ...37 6 2 Outdoor Unit 38QUA018DS 38QUA024DS...

Page 41: ...38 38QUA036DS...

Page 42: ...39 38QUA048DS 38QUA060DS...

Page 43: ...1 2 3 4 Model 12 0 02 5 0 04 10 0 08 20 0 12 30 0 16 40 0 0 18 0 45 Model 18 0 04 10 0 10 25 0 14 35 0 18 45 0 22 55 0 0 28 0 70 18 Model 24 0 04 10 0 10 25 0 16 40 0 22 55 0 28 70 0 0 40 0 100 24 Mod...

Page 44: ...41 40QSM018DS Code 0 Code 1 Code 2 Code 3 Code 4...

Page 45: ...42 40QSM024DS Code 0 Code 1 Code 2 Code 3 Code 4...

Page 46: ...43 40QSM036DS Code 0 Code 1 Code 2 Code 3 Code 4...

Page 47: ...44 40QSM048DS Code 0 Code 1 Code 2 Code 3 Code 4...

Page 48: ...tatic pressure pa in w c 20 25 30 60 70 80 90 100 120130140 150160 40 50 110 0 10 0 12 0 16 0 20 0 24 0 28 0 32 0 36 0 40 0 44 0 48 0 52 0 56 0 60 0 64 10 External static pressure pa in w c 20 25 30 6...

Page 49: ...40 0 44 0 48 0 52 0 56 0 60 0 64 0 08 0 04 10 External static pressure pa in w c 20 25 30 60 70 80 90 100 120130140 150160 40 50 110 0 10 0 12 0 16 0 20 0 24 0 28 0 32 0 36 0 40 0 44 0 48 0 52 0 56 0...

Page 50: ...00 1471 1800 1059 1600 941 1400 823 1200 706 1000 588 800 471 600 353 400 235 200 118 0 2000 1176 2200 1294 2400 1412 2600 1529 Air volume m3 h CFM 2800 1647 3000 1765 3200 1882 3400 2000 3600 2118 25...

Page 51: ...60 70 80 90 100 120130140 150160 40 50 110 0 10 0 12 0 16 0 20 0 24 0 28 0 32 0 36 0 40 0 44 0 48 0 52 0 56 0 60 0 64 0 08 0 04 170 0 68 180 0 72 190 0 76 200 0 80 10 External static pressure pa in w...

Page 52: ...00 3300 3800 External static pressure Pa Air volume m3 h High Speed Minimum rpm switch 0 Maximum rpm switch 4 0 20 40 60 80 100 120 140 160 180 1800 2300 2800 3300 3800 External static pressure Pa Air...

Page 53: ...50 60 208 230V 187V 253V 40QZL024DS 50 60 208 230V 187V 253V 40QSS024DS 50 60 208 230V 187V 253V 40QTD036DS 50 60 208 230V 187V 253V 40QSM036DS 50 60 208 230V 187V 253V 40QZL036DS 50 60 208 230V 187V...

Page 54: ...crophone 1 4m Concealed Duct Type Duct Duct Model Noise level dB A H M L 40QSM018DS 35 33 31 40QSM024DS 50 47 45 40QSM036DS 53 49 45 40QSM048DS 44 47 41 40QSS018DS 39 37 35 40QSS024DS 44 40 35 40QSS03...

Page 55: ...5m 1m Microphone Model Noise level dB A H M L 40QZL018DS 47 44 38 40QZL024DS 53 49 45 40QZL036DS 55 48 41 40QZL048DS 57 54 52 40QZL060DS 55 49 46 Model Noise level dB A H M L 40QTD018DS 46 43 41 40QTD...

Page 56: ...53 9 2 Outdoor unit Note H 0 5 height of outdoor unit Model Noise Level dB A 38QUA018DS 59 38QUA024DS 61 38QUA036DS 65 38QUA048DS 63 38QUA060DS 64 H 1 0m Outdoor Unit Microphone...

Page 57: ...s Owner s manual 1 Installation manual 1 EMS It s fitting Magnetic ring twist the electric wires L and N around it to five circles 1 Cassette Units Name Shape Quantity Installation Fittings Installati...

Page 58: ...anual 1 Installation accessory The product you have might not be provided the following accessories Expansible hook 4 Installation hook 4 Orifice 1 Ceiling floor Units Remote controller Its holder 1 R...

Page 59: ...Wiring 2 5 2 0 Outdoor Unit Power Wiring 3 2 5 3 2 0 Strong Electric Signal 4 1 0 4 1 5 Weak Electric Signal Model 36K 48 60K Power Phase 1 phase 1 phase Frequency and Voltage 208 230V 50 60Hz 208 230...

Page 60: ...57 12 Field Wiring 18K 24K 36K 48K...

Page 61: ...58 60K...

Page 62: ...s close to indoor unit as possible The piping length and height drop cannot exceed the allowable value The place where the noise vibration and outlet air do not disturb the neighbors There is enough r...

Page 63: ...ttings 13 2 1 4 Install the main body Make the 4 suspender through the 4 hanger of the main body to suspend it Adjust the hexangular nuts on the four installation hooks evenly to ensure the balance of...

Page 64: ...e space for indoor unit 13 2 2 2 Bolt pitch 13 2 2 3 Install the pendant bolt Select the position of installation hooks according to the hook holes positions showed in upper picture Drill four holes o...

Page 65: ...levelness of the main body is within 1 Adjust the position to ensure the gaps between the body and the four sides of ceiling are even The body s lower part should sink into the ceiling for 10 12 mm In...

Page 66: ...36K mm 1200 220 inch 47 24 8 66 48 60K mm 1565 220 inch 61 61 8 66 Wall mounted installation 13 2 3 3 Install the pendant bolt Ceiling installation Select the position of installation hooks according...

Page 67: ...ping screws into the hanging arms on the main unit The bottom of body can touch with floor or suspended but the body must install vertically 13 2 4 Slim cassette indoor unit installation 13 2 4 1 Serv...

Page 68: ...veling instrument to make sure the levelness of the main body is within 1 Adjust the position to ensure the gaps between the body and the four sides of ceiling are even The body s lower part should si...

Page 69: ...11 81in Air outlet Wall or obstacle Maintain channel More than 60cm 23 62in 13 3 2 Bolt pitch For the value of A B and D please refer to the dimension part 14 3 3 Install the Unit Since the gravity ce...

Page 70: ...ax 1 4 6 35 8 3 8 7 R0 4 0 8 A 45 90 4 3 8 9 52 12 0 12 4 1 2 12 7 15 4 15 8 5 8 15 9 18 6 19 1 3 4 19 22 9 23 3 After flared the pipe the opening part must be seal by end cover or adhesive tape to av...

Page 71: ...the Handle Lo of the manifold valve 5 Turn on the vacuum pump to begin evacuation 6 Conduct a 30 minute evacuation Check whether the compound meter indicates 0 1Mpa 14 5Psi If the meter does not indic...

Page 72: ...cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Place the charging cylinder onto the electronic scale and record the weight 4 Turn on the a...

Page 73: ...n the 2 way valve 4 Check for gas leaks Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the charging cylinder and discharge the refrigerant by loosening the...

Page 74: ...cap to a torque of 18N m Be sure to check for gas leakage 13 5 Drainage pipe installation Install the drainage pipe as shown below and take measures against condensation Improperly installation could...

Page 75: ...k Too long distance Gas bag 5 The horizontal pipe layout should avoid converse flow or bad flow Drainage pipe Water flow Drainage pipe Drainage pipe Drain tee Drain tee Water flow Water flow Water flo...

Page 76: ...nage pipe system fill the pipe with water and keep it for 24 hours to check whether there is leakage at joint section 13 5 3 2 Water discharge test 1 Natural drainage mode the indoor unit with outdoor...

Page 77: ...rying Eliminating moisture in system to prevent the phenomena of ice blockage and copper oxidation Ice blockage shall cause abnormal operation of system while copper oxide shall damage compressor Elim...

Page 78: ...additional refrigerant charge process needs to be performed The outdoor unit is factory charged with refrigerant The additional refrigerant charge volume is decided by the diameter and length of the l...

Page 79: ...n material The insulation material at the joint pipe shall be banded to the gap pipe and liquid pipe tightly The linking part should be use glue to paste together Be sure not bind the insulation mater...

Page 80: ...e confirm the following points before the test operation The indoor unit and outdoor unit are installed properly Tubing and wiring are correctly completed The refrigerant pipe system is leakage checke...

Page 81: ...e Hyper heat 30 50 22 122 30 50 22 122 CAUTION 1 If the air conditioner is used beyond the above conditions certain safety protection features may come into operation and cause the unit to operate abn...

Page 82: ...3 Temperature protection of compressor discharge When the compressor discharge temp is getting higher the running frequency will be limited as below rules Compressor discharge temp T5 115 239 F for 5s...

Page 83: ...54 C 129 2 F the compressor will keep running at the current frequency T3 52 C 125 6 F the compressor will not limit the frequency and resume to the former frequency T3 60 C 140 F for 5 seconds the co...

Page 84: ...9 3 F 3 0 26 6 F 4 5 23 9 F 1 5 29 3 F 3 0 26 6 F 4 5 23 9 F Auto fan action in heating mode 0 0 C 32 F T1 Td 1 5 C 34 7 F L H L 0 2 L H L 0 4 L H L 0 6 L H H L 0 8 L 1 C 30 2 F 2 C 28 4 F 3 C 26 6 F...

Page 85: ...off automatically when reaching the setting time 15 4 6 4 Timer on off The machine will turn on automatically when reaching the setting on time and then turn off automatically when reaching the setti...

Page 86: ...by the setting temperature 4 When the unit is running with follow me function if the PCB doesn t receive any signal from remote controller for 7 minutes or pressing FOLLOW ME button again the follow...

Page 87: ...iry information Displaying code Meaning T1 T1 T1 temp T2 T2 T2 temp T3 T3 T3 temp T4 T4 T4 temp T2B Tb T2B temp TP TP TP temp TH TH TH temp Targeted Frequency FT Targeted Frequency Actual Frequency Fr...

Page 88: ...1 139 E0 E1 E9 140 141 149 F0 F1 F9 150 151 159 Indoor fan speed Outdoor fan speed 0 OFF 1 2 3 4 Low speed Medium speed High speed Turbo For some big capacity motors 14 FF Actual fan speed Display val...

Page 89: ...trolytic Capacitors HIGH VOLTAGE CAUTION For other models For other models connect a discharge resistor approx 100 40W or a soldering iron plug between the and terminals of the electrolytic capacitor...

Page 90: ...rge temperature sensor T5 malfunction 5 times O F4 Outdoor unit EEPROM parameter error 6 times O F5 Outdoor fan speed malfunction 7 times O F6 Indoor coil outlet pipe sensor Located on outdoor unit lo...

Page 91: ...T4 malfunction F1 4 Condenser coil temperature sensor T3 malfunction F2 5 Compressor discharge temperature sensor T5 malfunction F3 6 Outdoor unit EEPROM parameter error F4 7 Outdoor fan speed malfunc...

Page 92: ...unit is not connected the digital display tube will show 08 Outdoor ambient temp T4 09 Compressor discharge temp T5 The display value is between 13 129 degree If the temp is lower than 13 degree the...

Page 93: ...igital display tube will show 20 Evaporator pipe temp T2 of 2 indoor unit 21 Evaporator pipe temp T2 of 3 indoor unit 22 1 Indoor unit capacity demand code Actual data HP 10 If capacity demand code is...

Page 94: ...allation mistake Faulty PCB Trouble shooting Yes Replace the indoor outdoor main PCB Power off then restart the unit 2 minutes later Does a problem still remain EEPROM a type of read only memory The c...

Page 95: ...Yes Power off then restart the unit 2 minutes later Power off then restart the unit 2 minutes later No Replace the outdoor main PCB Power on Is the error extinguished Replace the outdoor main PCB Powe...

Page 96: ...50V 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 Remark The old label is L1 L2...

Page 97: ...ce or add magnet ring on power wire Remove interference or add magnet ring on power wire Yes Replace the signal wire Replace the signal wire Yes Pull out and insert back Pull out and insert back No No...

Page 98: ...motor Faulty PCB Trouble shooting Power off then restart the unit after 2 minutes Does a problem remain Shut off the power supply Rotate the fan by hand Does it turn easily The unit is operating norm...

Page 99: ...well as between pin4 and pin3 in fan motor connector If the value of the voltage is not within the range shown in the following table the PCB may be experiencing problems and need to be replaced DC mo...

Page 100: ...n 0 06V or higher than 4 94V the LED displays a failure Potential causes Wiring mistake Faulty sensor Faulty PCB Trouble shooting Check the connection between temperature sensor and PCB Is it properly...

Page 101: ...ds and compressor running frequency is not higher than 50Hz for 3 minutes Potential Causes Faulty T2 sensor Faulty indoor PCB System problems such as leakage or blockages Trouble shooting Is there coo...

Page 102: ...the water level switch well Insert the water level switch well If the water level switch is broken If the water level switch is broken Yes Replace the water level switch Replace the water level switc...

Page 103: ...y outdoor PCB Trouble shooting Check the wiring between main PCB and compressor Does an error exist Ensure a proper connection or replace the wires and connectors Yes No Check the IPM Is it in working...

Page 104: ...101 P U P V...

Page 105: ...102 P W P N...

Page 106: ...k the connections and w i r e s Are they in working order Turn off the unit No Yes No Ensure proper connections or replace the wires Yes Replace the reactor Yes No Replace the IPM board Turn power on...

Page 107: ...utdoor units Does a problem exist Clear up the air inlet and outlet or the heat exchanger of the indoor and outdoor units Yes No Yes Yes Power off and then restart the unit 10 minutes afterwards Check...

Page 108: ...onic control box is Installed good Check whether electronic control box is Installed good Check whether thermal grease is no coating or uneven coating Check whether thermal grease is no coating or une...

Page 109: ...fan assembly Compressor malfunction Faulty outdoor PCB Trouble shooting Check the wiring between the main PCB and compressor Is it improperly wired Ensure proper connection or replace the wires and c...

Page 110: ...it properly wired Ensure proper connection No Yes Replace outdoor main PCB Measure the resistance value of the sensor Is it within acceptable parameters Replace the sensor No Yes 16 4 Main parts chec...

Page 111: ...243 0 38991 2 28 39 8239 38 100 5 62961 78 172 1 25423 118 244 0 37956 1 30 37 1988 39 102 5 39689 79 174 1 2133 119 246 0 36954 0 32 35 2024 40 104 5 17519 80 176 1 17393 120 248 0 35982 1 34 33 326...

Page 112: ...25 222 8 36 97 34 32 76 169 7 82 116 241 2 357 3 27 211 4 37 99 32 94 77 171 7 566 117 243 2 294 2 28 200 7 38 100 31 62 78 172 7 321 118 244 2 233 1 30 190 5 39 102 30 36 79 174 7 086 119 246 2 174...

Page 113: ...110 Appendix 3 10 11 12 13 14 15 16 17 18 19 20 21 22 48 50 52 54 56 58 60 62 64 66 68 70 72 23 24 25 26 27 28 29 30 31 32 33 34 35 74 76 78 80 82 84 86 88 90 92 94 96 98...

Page 114: ...he resistance value of each winding by using the tester Position Resistance Value ASN98D22UFZ ASM135D23UFZ ATF235D22UMT ATF250D22UMT ATF310D43UMT ATQ420D1UMU ATM115D43UFZ2 Blue Red 1 57 1 75 0 75 0 75...

Page 115: ...eral M P N U N U V V W W Red 4 Pressure on Service Port Cooling chart COOLING MODE Indoor Temp Outdoor temp 75 23 89 85 29 44 95 35 105 40 56 115 46 11 BAR 70 8 2 7 8 8 1 8 6 10 1 BAR 75 8 6 8 3 8 7 9...

Page 116: ...0 26 6 25 4 23 3 BAR 75 33 8 31 5 27 8 26 3 24 9 PSI 55 439 413 367 330 302 PSI 65 471 435 386 368 339 PSI 75 489 457 403 381 362 MPA 55 3 03 2 85 2 53 2 28 2 08 MPA 65 3 25 3 00 2 66 2 54 2 33 MPA 75...

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