Haier 1U25S2SM1FA-2 Service Manual Download

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Service diagnosis

Domestic air conditioner

10.3.6 Over-current of the compressor

Outdoor Display:

Ƶƾƶ

F2 LED1 flash 3 or 24 or 25 times

Method of The current of the compressor is too high
Malfunction
Detection

Malfunction    when the IPM Module is damaged
Decision    or the compressor is damaged.
Conditions    power supply voltage is too low or too high

Supposed

Faulty IPM Module

Causes

Faulty compressor

Faulty power supply

Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or parts

damage may be occurred.

Electrify the machine again and turn it on
with the remote controller, If malfunctions
are reported before or upon the compressor
being started up,

IPM Module is damaged and
needs replacing.

Repair the power supply

The system may have been over or under
charged with gas, which can be judged through
the pressure of the measuring system.

YES

Yes

The compressor is started normally, but
malfunctions are reported after it has
run for some time. Check the power
supply is too low or too high

Summary of Contents for 1U25S2SM1FA-2

Page 1: ...n attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or Repair the product or products dealt with in this service information by anyone else could result in serious injury or death WARNING 2018 Qingdao Haier Air Conditioner General corp Ltd All rights reserved Unauthorized copying and di...

Page 2: ...ns 7 3 Sensors list 8 4 Piping diagrams 9 5 Operation range 10 6 Printed circuit board connector wiring diagram 11 7 Functions and control 8 Dimensional drawings 9 Center of gravity 10 Service diagnosis 11 Performance and curves diagrams 12 Circuit diagrams 15 48 30 29 29 56 ...

Page 3: ... 1 U 2 5 S 2 S M F 1 Type of outdoor unit U normal type The maximum combination number Nominal cooling capacity 9000BTU h Supermatch second generation normal efficiency Outdoor casing 220 240V50HZ 1ph R32 refrigerant version 1 A 1 Domestic air conditioner ...

Page 4: ...test operation to ensure that the equipment operates Normally and explain the cautions for operating the product to the customer Check the embedded wire are four roots L N COM GND GND is needed if not thunder or high voltage wave from power grid will impact to the performance Using a multi meter to test short circuit of the four roots wires make sure no short circuit happen 1 2 2 Caution in Repair...

Page 5: ...an cause an electrical shock or fire Warning Do not repair the electrical components with wet hands Working on the equipment with wet hands can cause an electrical shock Do not clean the air conditioner by splashing water Washing the unit with water can cause an electrical shock Be sure to provide the grounding when repairing the equipment in a humid or wet place to avoid electrical shock Be sure ...

Page 6: ...er electrical work can cause an electrical shock or fire Be sure to use the specified cable to connect between the indoor and outdoor units Make the connections securely and route the cable properly so that there is no force pulling the cable at the connection terminals Improper connections can cause excessive heat generation or fire When connecting the cable between the indoor and outdoor units m...

Page 7: ...emains around the unit it can cause a fire Be sure to install the packing and seal on the installation frame properly If the packing and seal are not installed properly water can enter the room and wet the furniture and floor 1 2 4 Inspection after Repair Warning Check to make sure that the power cable plug is not dirty or loose then insert the plug into a power outlet all the way If the plug has ...

Page 8: ...ock Be sure to check the drainage of the indoor unit after the repair Faulty drainage can cause the water to enter the room and wet the furniture and floor 1 2 4 Using Icons Icons are used to attract the attention of the reader to specific information The meaning of each icon is described in the table below 1 2 5 Using Icons List Icon Type of Information Description Note Note A note provides infor...

Page 9: ...ensions H W D mm 800 275 553 Packaged Dimensions H W D mm 908 405 625 Weight KG 27 6 Gross weight KG 30 4 Sound level Sound pressure dB 47 Sound power dB 59 ELECTRICAL SPECIFICATIONS Cooling heating Nominal running current A 2 9 3 6 Maximum running current A 5 5 7 2 Starting current A 1 1 TECHNICAL SPECIFICATIONS PARTS cooling heating Compressor Type Rotary Compressor Model GSD098RKTF6JV6B Motor o...

Page 10: ...d and Gas pipes Max piping Length m 20 Max Level Difference m 10 Chargeless m 7 Amount of Additional Charge of Refrigerant g m 20 Note the data are based on the conditions shown in the table below cooling heating Piping length Indoor 27 DB 19 WB Outdoor 35 DB 24 WB Indoor 20 DB Outdoor 7 DB 6 WB 5m 3 Sensors list type Description Qty Ambient sensor Its used for detecting temperature of outdoor sid...

Page 11: ...Pinping diagrams Domestic air conditioner 4ˊPiping diagrams 9 EEV EEV ...

Page 12: ...Operation range 5 Operation range 60 43 40 20 0 20 20 40 21 35 15 20 25 27 10 Domestic air conditioner ...

Page 13: ...nector for the U V W wire of the compressor 5 CN8 6 CN9 7 L IN CN5 Connector for reactor 8 L OUT CN6 9 CN10 Connector for fan motor 10 CN11 Connector for four way valve coil 11 CN15 Connector for Temperature sensor 12 CN12 Connector for HEATER 13 CN4 Connector for communicate between indoor and outdoor unit 14 CN16 Connector for electric expansion valves CN4 CN12 CN11 CN15 CN16 CN1 CN10 CN7 CN8 CN...

Page 14: ...Functions and control 13 Domestic air conditioner Wiring diagrams OUTDOOR UNIT ...

Page 15: ...frequency for protection should be prior to the calculated frequency 7 1 1 3 The speeds of increasing or decreasing the frequency of the compressor The speed of increasing or decreasing the frequency rapidly 1 1HZ second The speed of increasing or decreasing the frequency slowly 2 1HZ 10seconds 7 1 1 4 The calculation of the compressor s frequency Refrigeration dehumidification mode Pn Nh_c S_c 10...

Page 16: ...e environment but also the maximum ability limitation of the system When the starting ability is not the maximum its maximum frequency limitation is calculated by the following equations The frequency limitation which is affected by the temperature and under the condition of actual ability the actual running system ability the maximum frequency which is limited by the temperature and under the con...

Page 17: ...ly it must be kept under each mode for over 30 seconds and then it can be changed to another mode when refrigerating the time is changed to 15 seconds 7 1 2 1 The outdoor fan control Within three minutes of compressor starting the compressor is controled according to the ambient temperature Tao Tao 22 22 Tao 28 Tao 28 Refrigeration dehumidification 610rpm 610rpm 610rpm Tao Tao 10 10 Tao 17 Tao 17 ...

Page 18: ... for each time continuously sampling for 8 times then order them and take the mean value of the middle 2 values take the mean value TTC 09K Abnormal stop 107 Decreasing the frequency rapidly 1HZ second 102 Decreasing the frequency slowly 1HZ 10seconds 98 The frequency doesn t change 95 Increasing the frequency 1HZ 10second 93 Increasing the frequency 1HZ 1second TTC 110 lasts for 20 seconds Overhe...

Page 19: ... is greater than 9A the frequency of the compressor decreases at the speed of 1HZ second During the starting process of the compressor if the AC current is greater than 8A the frequency of the compressor decreases at the speed of 0 1HZ second During the starting process of the compressor if the AC current is greater than 7A the frequency of the compressor increases at the prohibited speed During t...

Page 20: ...t for 2 minutes and then the outdoor unit will stop and report underload malfunction but don t send malfunction report to the indoor The compressor stops for more than 3 minutes Tpg_indoor ice_temp_3 2ć the compressor recovers 7 1 5 6 The frequency limitation of modification rate In the field which is controlled by high frequency if the modification rate is not high enough the control driven chip ...

Page 21: ...7 132 3678 1 94 1 75 29 155 5754 139 5600 125 0806 1 93 1 74 28 146 5609 131 7022 118 2434 1 91 1 73 27 138 1285 124 3392 111 8256 1 89 1 71 26 130 2371 117 4366 105 7989 1 87 1 70 25 122 8484 110 9627 100 1367 1 85 1 69 24 115 9272 104 8882 94 8149 1 83 1 67 23 109 4410 99 1858 89 8106 1 81 1 66 22 103 3598 93 8305 85 1031 1 80 1 64 21 97 6556 88 7989 80 6728 1 78 1 63 20 92 3028 84 0695 76 5017 ...

Page 22: ...7 14 5748 14 0079 13 4510 0 93 0 92 18 13 9436 13 4185 12 9017 0 91 0 90 19 13 3431 12 8572 12 3778 0 88 0 87 20 12 7718 12 3223 11 8780 0 86 0 85 21 12 2280 11 8126 11 4011 0 83 0 83 22 11 7102 11 3267 10 9459 0 81 0 80 23 11 2172 10 8634 10 5114 0 78 0 78 24 10 7475 10 4216 10 0964 0 75 0 75 25 10 3000 10 0000 9 7000 0 75 0 75 26 9 8975 9 5974 9 2980 0 76 0 76 27 9 5129 9 2132 8 9148 0 80 0 80 2...

Page 23: ...2 6112 2 4328 2 17 2 05 62 2 7099 2 5246 2 3498 2 22 2 09 63 2 6232 2 4413 2 2700 2 26 2 13 64 2 5396 2 3611 2 1932 2 31 2 17 65 2 4591 2 2840 2 1195 2 36 2 21 66 2 3815 2 2098 2 0486 2 40 2 25 67 2 3068 2 1383 1 9803 2 45 2 29 68 2 2347 2 0695 1 9147 2 49 2 34 69 2 1652 2 0032 1 8516 2 54 2 38 70 2 0983 1 9393 1 7908 2 59 2 42 71 2 0337 1 8778 1 7324 2 63 2 46 72 1 9714 1 8186 1 6761 2 68 2 50 73...

Page 24: ...36 0 6303 4 34 3 92 105 0 7641 0 6845 0 6127 4 40 3 97 106 0 7441 0 6661 0 5957 4 46 4 02 107 0 7247 0 6482 0 5792 4 51 4 07 108 0 7059 0 6308 0 5632 4 57 4 12 109 0 6877 0 6140 0 5478 4 63 4 16 110 0 6700 0 5977 0 5328 4 69 4 21 111 0 6528 0 5820 0 5183 4 74 4 26 112 0 6361 0 5667 0 5043 4 80 4 31 113 0 6200 0 5518 0 4907 4 86 4 36 114 0 6043 0 5374 0 4775 4 92 4 41 115 0 5891 0 5235 0 4648 4 98 ...

Page 25: ...6945 2 66 2 29 7 3276 5302 2818 6731 2422 6139 2 64 2 28 6 3085 2854 2658 8058 2289 2164 2 63 2 28 5 2906 2851 2508 9126 2163 9230 2 61 2 27 4 2738 6777 2368 3158 2046 1961 2 60 2 26 3 2581 6752 2236 3876 1935 5371 2 58 2 25 2 2434 5487 2112 5459 1831 4826 2 56 2 24 1 2296 6230 1996 2509 1733 6024 2 55 2 23 0 2167 2730 1887 0018 1641 4966 2 53 2 22 1 2045 9191 1784 3336 1554 7931 2 52 2 21 2 1932 ...

Page 26: ...6 1 73 37 315 5682 290 6199 267 4031 1 84 1 71 38 301 1254 277 6976 255 8620 1 82 1 70 39 287 4128 265 4119 244 8745 1 80 1 68 40 274 3905 253 7288 234 4118 1 78 1 66 41 262 0206 242 6161 224 4465 1 76 1 64 42 250 2676 232 0436 214 9529 1 74 1 63 43 239 0983 221 9825 205 9065 1 71 1 61 44 228 4809 212 4060 197 2844 1 69 1 59 45 218 3860 203 2887 189 0648 1 67 1 57 46 208 7855 194 6066 181 2273 1 6...

Page 27: ...00 0 85 0 84 81 49 7063 48 2057 46 7083 0 85 0 85 82 47 9835 46 4842 44 9911 0 89 0 89 83 46 3286 44 8323 43 3452 0 93 0 92 84 44 7385 43 2468 41 7672 0 96 0 95 85 43 2105 41 7248 40 2540 1 00 0 99 86 41 7386 40 2604 38 7996 1 03 1 02 87 40 3241 38 8545 37 4048 1 07 1 06 88 38 9643 37 5045 36 0668 1 11 1 09 89 37 6569 36 2078 34 7831 1 14 1 13 90 36 3996 34 9622 33 5513 1 18 1 16 91 35 1903 33 765...

Page 28: ...2 36 2 23 120 14 1376 13 1879 12 2909 2 41 2 27 121 13 7294 12 7955 11 9144 2 45 2 31 122 13 3347 12 4165 11 5510 2 50 2 35 123 12 9531 12 0503 11 2003 2 54 2 39 124 12 5840 11 6965 10 8617 2 58 2 43 125 12 2270 11 3545 10 5348 2 63 2 47 126 11 8817 11 0240 10 2191 2 68 2 51 127 11 5475 10 7046 9 9142 2 72 2 55 128 11 2242 10 3957 9 6197 2 77 2 59 129 10 9112 10 0970 9 3352 2 81 2 63 130 10 6084 9...

Page 29: ...Dimensional drawing 29 Domestic air conditioner 8 Dimensional drawings 9 Center of gravity 149 91 130 510 313 553 800 347 52 860 275 ...

Page 30: ...Rated voltage 240V Rated current 0 1A Rated frequency 50 60HZ 4 way valve Domestic air conditioner 30 1 When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions disabling equipment operation 2 When a signal transmission error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages Ra...

Page 31: ...ipment operates but does not cool or does not heat only for heat pump Check for faulty operation of the electronic expansion valve Set the units to cooling operation and compare the temperatures of the liquid side connection pipes of the connection section among rooms to check the opening and closing operation of the electronic expansion valves of the individual units Diagnosis by service port pre...

Page 32: ...y 7 Compressor stall press instantaneous stop Page 40 F4 Directly display 8 Compressor discarging temperature protection Page 41 F8 Trouble record 9 Abnormal of DC motor Page 36 F21 Directly display 10 Abnormal of piping sensor Page 32 F6 Directly display 12 Abnormal of outdoor ambient sensor Page 32 F25 Directly display 13 Abnormal of compressor discharge sensor Page 32 F13 Trouble record 16 Lack...

Page 33: ...or input is more than 4 92V or less than 0 08V during compressor Decision operation Conditions z Note The values vary slightly in some models Supposed Ŷ Faulty connector connection Causes Ŷ Faulty thermistor Ŷ Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Thermistor resistance check method Remove the ...

Page 34: ... Data detected by the EEPROM are used to determine MCU Malfunction Detection Malfunction When the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed Ŷ Faulty EEPROM data Causes Ŷ Faulty EEPROM Ŷ Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Replace the indoor or outdoor mainboard...

Page 35: ...lty indoor unit PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Check whether terminals on indoor pcb is well Electrify the machine again and turn it on in the cooling operation Measure voltage between the positions 1and 3 of Terminal CN5 on the indoor PCB the voltage is about 90 220vac check whether motor can...

Page 36: ...ing condition and so on Malfunction Detection Malfunction when the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed Ƶ DC fan motor protection dues to the DC fan motor faulty Causes Ƶ DC fan motor protection dues to faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred ...

Page 37: ...Service diagnosis 37 Domestic air conditioner ...

Page 38: ... to IPM protection due to over current Decision Ŷ The compressor faulty leads to IPM protection Conditions Ŷ circuit component of IPM is broken and led to IPM protection Supposed Ŷ IPM protection dues to the compressor faulty Causes Ŷ IPM protection dues to faulty PCB of IPM module Ŷ Compressor wiring disconnected Troubleshooting Caution Be sure to turn off power switch before connect or disconnec...

Page 39: ...pply Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Electrify the machine again and turn it on with the remote controller If malfunctions are reported before or upon the compressor being started up IPM Module is damaged and needs replacing Repair the power supply The system may have been over or under charged with gas...

Page 40: ...isconnected Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred 1 Check whether Terminal CN23 and CN24 on the outdoor mainboard CN10 and CN11 on IPM module 2 Check whether the connected wire between IPM and outdoor Are they good Electrify the machine again and turn it on Check whether the voltage between 1 and 2 of Te...

Page 41: ...Supply voltage not as specified Causes Ŷ the IPM module is broken Ŷ the outdoor PCB is broken Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Electrify the machine again and turn it on with the remote controller Check whether the compressor is started normally Is it ok Yes Maybe there is some disturbance NO No 230...

Page 42: ... occurred Electrify the machine again and turn it on with the remote controller then measure the temperature at the exhaust temperature sensor of the compressor on the outdoor unit The temperature exceeds 110 ć shortly after the machine starts up 1 The cryogen may have been leaked during installation or there may be leakage in the piping system 2 There may be other causes to make the exhaust tempe...

Page 43: ...utdoor PCB Malfunction Detection Malfunction Ŷ The outdoor PCB broken leads to communication fault Decision Ŷ The indoor PCB broken leads to communication fault Conditions Supposed Ŷ Communication wiring disconnected Causes Ŷ The indoor PCB is broken Ŷ The outdoor PCB is broken Ŷ The Module PCB is broken Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connecto...

Page 44: ...utdoor pcb is damaged replace it with a new one NO Measure the voltage Between 3 and 4 of IC9 on the Outdoor mainboard with a Multimete The voltage is a constant value of 0V DC to 5V DC The outdoor pcb is damaged replace it with a new one YES NO The outdoor pcb is well and then check the cable If the voltage is a constant value of 0V DC to 5V DC Or the voltage between Communication line red and N ...

Page 45: ...mpressor Ƶ Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Within 3 minutes after the machine is supplied with power and turned on with the remote controller check whether the compressor can start up 1 The wiring of compressor is incorrect or the connection is poor 2 The compressor is damaged At first the co...

Page 46: ...Dirty heat exchanger Ƶ Faulty heat exchange sensor Ƶ Insufficient gas Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Electrify the machine again and turn it on with the remote controller check whether the wind temperature is below 65ć The malfunction is reported after the machine has run for some time 1 ǃ Check r...

Page 47: ...3 1854 2021 2064 2024 1991 1858 2347 2546 2486 2363 2248 27 19 1966 2122 2206 2335 2293 2223 2120 2584 2839 2743 2710 2461 30 22 2080 2210 2340 2444 2392 2340 2210 2730 2990 2912 2808 2626 32 23 2203 2327 2444 2596 2533 2492 2359 2849 3222 3116 2962 2775 35 24 2252 2411 2593 2688 2633 2601 2452 2969 3256 3232 3043 2936 cooling capacity and indoor outdoor temp curves 5500 5000 20 4500 10 4000 0 350...

Page 48: ...772 801 24 16 390 489 572 645 638 629 312 431 554 689 779 828 27 19 445 542 628 710 685 670 334 476 617 717 850 929 30 22 462 567 669 719 704 688 345 488 623 743 878 938 32 23 497 600 701 729 727 710 366 514 658 825 920 1010 35 24 510 619 724 759 732 717 378 543 682 842 951 1032 power consumption and temp curves 1100 1000 20 900 10 800 700 8 600 500 15 400 20 300 200 100 indoor temp DB WB 47 Domes...

Page 49: ...339 10 1383 1420 1493 0 1506 1578 1660 8 1658 1710 1793 15 1759 1841 1957 20 1955 2025 2136 25 2088 2157 2256 30 2218 2341 2444 35 2370 2499 2598 38 2548 2683 2806 40 2884 3025 3142 43 3308 3419 3573 cooling discharge pressure and temp curves 4000 3500 21 15 3000 2500 27 19 2000 35 24 1500 1000 0 8 15 20 25 30 35 38 40 43 20 10 outdoor temp DB WB 49 Domestic air conditioner discharge pressure Kpa ...

Page 50: ...7 19 35 24 20 618 761 875 10 650 801 922 0 677 835 960 8 698 860 990 15 713 878 1010 20 720 887 1020 25 758 896 1041 30 798 943 1051 35 840 953 1107 38 884 982 1129 40 972 1080 1242 43 1069 1167 1354 cooling suction pressure and temp curves 1550 1350 21 15 1150 950 27 19 750 550 35 24 350 20 10 0 8 15 20 25 30 35 38 40 43 outdoor temp DB WB 51 Domestic air conditioner suction pressure Kpa ...

Page 51: ...humidity 46 DB WB 10 20 27 20 2022 1866 1618 15 2460 2292 2022 10 2797 2558 2359 7 8 3438 3117 2897 2 1 3675 3243 2941 7 6 3577 3303 2939 12 11 3493 3146 2572 18 16 3202 3051 2406 24 20 3002 2761 2166 heating capacity and indoor outdoor temp curves 4000 3500 10 3000 2500 20 2000 1500 27 1000 500 0 outdoor temp DB WB 53 Domestic air conditioner heating capacity W ...

Page 52: ...oor temp humidity 46 DB WB 10 20 27 20 661 777 824 15 737 819 868 10 853 888 933 7 8 955 974 1023 2 1 981 1001 1051 7 6 967 1007 1057 12 11 861 925 1018 18 16 723 803 883 24 20 565 627 690 power consumption and temp 1200 1000 10 800 600 20 400 27 200 0 20 15 10 7 8 2 1 7 6 12 11 18 16 24 20 outdoor temp DB WB 55 Domestic air conditioner power consumption w ...

Page 53: ...2259 2394 2452 15 2466 2582 2713 10 2796 2975 3145 7 8 3038 3249 3327 2 1 3276 3523 3657 7 6 3235 3420 3551 12 11 3083 3249 3324 18 16 2940 3054 3137 24 20 2498 2596 2708 heating discharge pressure and temp curves 4000 3500 10 3000 20 2500 27 2000 1500 1000 20 15 10 7 8 2 1 7 6 12 11 18 16 24 20 outdoor temp DB WB 57 Domestic air conditioner discharge pressure Kpa ...

Page 54: ... 302 322 15 347 386 406 10 400 429 449 7 8 494 533 553 2 1 613 652 672 7 6 746 785 805 12 11 847 886 906 18 16 1014 1053 1073 24 20 1200 1239 1259 heating suction pressure and temp curves 1400 1300 1200 1100 1000 900 10 800 700 20 600 500 400 27 300 200 100 0 20 15 10 7 8 2 1 7 6 12 11 18 16 24 20 outdoor temp DB WB 59 Domestic air conditioner suction pressure Kpa ...

Page 55: ...rcuit diagrams 61 Domestic air conditioner 12 Sound level Model Sound pressure level Sound power level cooling heating 230V 50HZ Measuring location of microphone Cooling heating H L SL 1U25S2SM1FA 2 47 59 ...

Page 56: ...56 Do C omestic air ircuit Diagra conditioner ams r 12 Circuit diagrams 12 1 Outdoor unit control board circuit diagrams ...

Page 57: ...rams Sincere Forever Domestic air conditioner Edited by Signed by Approved by Shi haiyan Wang wanli Yang Wenjun Wu Hongjin Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China_ Http www haier com ...

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