Haier EK Series Service Manual
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Haier EK Series Service Manual

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Summary of Contents for Haier EK Series

  • Page 1 http://splitoff.ru/tehn-doc.html...

  • Page 2: Removal Procedure

    11.Removal Procedure : http://splitoff.ru/tehn-doc.html...
  • Page 3 HSU-18HEK03 : http://splitoff.ru/tehn-doc.html...

  • Page 4: Safety Cautions

    18HEK03 Introduction 2. Introduction 2.1 Safety Cautions Be sure to read the following safety cautions before conducting repair work. The caution items are classified into “Warning” and “Caution”. The “Warning” items are especially important since they can lead to death or serious injury if they are not followed closely. The “Caution” items can also lead to serious accidents under some conditions if they are not followed.

  • Page 5: Cautions Regarding Products After Repair

    18HEK03 Introduction 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.
  • Page 6 18HEK03 Introduction Warning Be sure to use an exclusive power circuit for the equipment, and follow the technical standards related to the electrical equipment, the internal wiring regulations and the instruction manual for installation when conducting electrical work. Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire. Be sure to use the specified cable to connect between the indoor and outdoor units.

  • Page 7: Inspection After Repair

    18HEK03 Introduction 2.1.3 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 dust or loose connection, it can cause an electrical shock or fire. If the power cable and lead wires have scratches or deteriorated, be sure to replace them.

  • Page 8: Using Icons List

    18HEK03 Introduction 2.1.4 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: 2.1.5 Using Icons List Icon Type of Information Description A “note” provides information that is not indispensable, but may Note: Note nevertheless be valuable to the reader, such as tips and tricks.
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  • Page 11: Printed Circuit Board Connector Wiring Diagram

    18HEK03 4.Printed Circuit Board Connector Wiring Diagram 4.1 Indoor unit Connectors Indoor PCB 1)CN1connector for transformer input 2)CN2 connector for terminal block. 3)CN3 connector for transformer output 4)CN5” or CN5”(1) connector for up and down step motor. 5)CN6 connector for ambient temp. sensor and piping temp.sensor. 6)CN7 connector for receiver display.

  • Page 12: Functions And Control

    18HEK03 5 Functions and control 5.1 main functions and control specifications Including brief introduction to air conditioners of series models and electric control function. 5.1.1 Automatic running Automatic running mode When the running mode is turned to automation after starting the system, the system will first determine the running mode according to the current room temperature and then will run according to the determined mode.
  • Page 13 18HEK03 Manual operation:When unit is on the wind speed can be set to high, medium, low or automatic as required (execute instruction 2 seconds later after receiving remote signal) Compressor control The compressor can’t be controlled by temperature sensor within 2 minutes after start up and can be only restarted at least 3 minutes later after shutdown.
  • Page 14 18HEK03 5.1.5.3.1 Entry conditions of defrosting: The entry conditions of defrosting is classified into two types: intelligentized defrosting and sensor defrosting. Through selecting and judging, the models without outdoor sensor defrosts according to intelligentized defrosting, and others with ensor defrosts according to sensor defrosting. Intelligentized defrosting: 5.1.5.3.1.1 Indoor unit enter overload protection and air outlet stops when air outlet has been restarted and runs over 10 minutes, and compressor runs over 45 minutes in total and over 20 minutes...
  • Page 15 18HEK03 5.1.5.3.1 Entry conditions of defrosting: The entry conditions of defrosting is classified into two types: intelligentized defrosting and sensor defrosting. Through selecting and judging, the models without outdoor sensor defrosts according to intelligentized defrosting, and others with ensor defrosts according to sensor defrosting. Intelligentized defrosting: 5.1.5.3.1.1 Indoor unit enter overload protection and air outlet stops when air outlet has been restarted and runs over 10 minutes, and compressor runs over 45 minutes in total and over 20 minutes...
  • Page 16 18HEK03 5.1.6.2 Timer off: Unit starts, timer indicator lights up; When reaching time setting, the indicator goes out, unit enters shut down mode, and sleep function can be set. If timer off and sleep are set synchronously, the one which time is short run first. Executing shutdown instruction clear timer and sleep function.

  • Page 17: Value Of Thermistor

    18HEK03 Current cross control doesn’t work. The control of current cross peak expiration doesn’t work. Temperature control doesn’t work. Temperature expiration control doesn’t work. 5.1.10 memory function The memory function of power down is available, and the auto recovery function of power on is optional. (In auto, heating, cooling, or defrosting status, press the “sleeping” button 10 times within 5 seconds, and the auto recovery function of power on can be set on/off.
  • Page 18 18HEK03 130.9337 120.3778 110.5374 -1.51 1.41 123.4597 113.7009 104.5852 -1.49 1.39 116.4577 107.4349 98.9897 -1.47 1.38 109.8953 101.5523 93.7278 -1.45 1.36 103.7422 96.0274 88.7774 -1.43 1.34 97.9708 90.8365 84.1185 -1.40 1.32 92.5551 85.9574 79.7322 -1.38 1.30 87.4712 81.3697 75.6011 -1.36 1.29 82.6970 77.0544...
  • Page 19 18HEK03 13.4786 12.7957 12.1325 -1.23 1.20 12.9244 12.2537 11.6035 -1.27 1.24 12.3960 11.7375 11.1004 -1.31 1.27 11.8921 11.2459 10.6218 -1.35 1.31 11.4113 10.7775 10.1665 -1.39 1.34 10.9526 10.3311 9.7330 -1.43 1.38 10.5147 9.9056 9.3204 -1.48 1.42 10.0967 9.4999 8.9275 -1.52 1.45 9.6976 9.1130...
  • Page 20 18HEK03 2.5203 2.2717 2.0451 -3.28 2.99 2.4388 2.1960 1.9749 -3.33 3.03 2.3602 2.1231 1.9075 -3.38 3.07 2.2846 2.0530 1.8426 -3.43 3.12 2.2118 1.9856 1.7803 -3.48 3.16 2.1416 1.9207 1.7204 -3.54 3.20 2.0740 1.8582 1.6628 -3.59 3.25 2.0089 1.7981 1.6074 -3.64 3.29 1.9461 1.7402...
  • Page 21 18HEK03 146.5609 131.7022 118.2434 -1.91 1.73 138.1285 124.3392 111.8256 -1.89 1.71 130.2371 117.4366 105.7989 -1.87 1.70 122.8484 110.9627 100.1367 -1.85 1.69 115.9272 104.8882 94.8149 -1.83 1.67 109.4410 99.1858 89.8106 -1.81 1.66 103.3598 93.8305 85.1031 -1.80 1.64 97.6556 88.7989 80.6728 -1.78 1.63 92.3028 84.0695...
  • Page 22 18HEK03 14.5748 14.0079 13.4510 -0.93 0.92 13.9436 13.4185 12.9017 -0.91 0.90 13.3431 12.8572 12.3778 -0.88 0.87 12.7718 12.3223 11.8780 -0.86 0.85 12.2280 11.8126 11.4011 -0.83 0.83 11.7102 11.3267 10.9459 -0.81 0.80 11.2172 10.8634 10.5114 -0.78 0.78 10.7475 10.4216 10.0964 -0.75 0.75 10.3000 10.0000...
  • Page 23 18HEK03 2.7099 2.5246 2.3498 -2.22 2.09 2.6232 2.4413 2.2700 -2.26 2.13 2.5396 2.3611 2.1932 -2.31 2.17 2.4591 2.2840 2.1195 -2.36 2.21 2.3815 2.2098 2.0486 -2.40 2.25 2.3068 2.1383 1.9803 -2.45 2.29 2.2347 2.0695 1.9147 -2.49 2.34 2.1652 2.0032 1.8516 -2.54 2.38 2.0983 1.9393...
  • Page 24 18HEK03 0.7247 0.6482 0.5792 -4.51 4.07 0.7059 0.6308 0.5632 -4.57 4.12 0.6877 0.6140 0.5478 -4.63 4.16 0.6700 0.5977 0.5328 -4.69 4.21 0.6528 0.5820 0.5183 -4.74 4.26 0.6361 0.5667 0.5043 -4.80 4.31 0.6200 0.5518 0.4907 -4.86 4.36 0.6043 0.5374 0.4775 -4.92 4.41 0.5891 0.5235...
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  • Page 26: Parts And Functions

    18HEK03 Parts and Functions Indoor Unit Remote controller 6. SIGNAL SENDING 7. TIMER OFF display 8. TIMER ON display 9. CLOCK display 10. TEMP display HEALTH ON/OFF 11. POWER ON/OFF Used for unit start and stop. 12. MODE Used to select AUTO run, COOL, DRY,HEAT and FAN operation.

  • Page 27: Operation

    18HEK03 Operation Unit start / stop Auto Operation Press ON/OFF button, unit starts or stops. According to the automatic choice HEALTH ON/OFF system in temperature in indoors cold or make the hot movement MODE Select temp.setting SWING MODE SWING Remote Operation Note Dry Operation...
  • Page 28 18HEK03 TIMER OFF TIMER TIMER CLOCK CLOCK SLEEP SLEEP LOCK RESET LOCK RESET : http://splitoff.ru/tehn-doc.html...
  • Page 29 18HEK03 : http://splitoff.ru/tehn-doc.html...
  • Page 30 18HEK03 : http://splitoff.ru/tehn-doc.html...
  • Page 31 18HEK03 : http://splitoff.ru/tehn-doc.html...
  • Page 32 18HEK03 : http://splitoff.ru/tehn-doc.html...
  • Page 33 18HEK03 Cautions WARNING Please call Sales/Service Shop for the Installation. Do not attempt to install the air conditioner by yourself because improper works may cause electric shock, fire, water leakage. WARNING Check proper When abnormality such as burnt-small found, Use an exclusive immediately stop the operation button and installation of the power source...

  • Page 34: Problem Symptoms And Measures

    18HEK03 7.Codes and Description 7.1.Problem Symptoms and Measures Symptom Check Item Details of Measure Check to make sure that the rated voltage is Check the power supply. None of the units supplied. operates Check the indoor PCB Check to make sure that the indoor PCB is broken Equipment operates but does Diagnosis...
  • Page 35 18HEK03 Pull the sensor out of the mainboard Measure the value of resistance Between its two jumpers Measure the temperature at the room temperature sensing head. Check the value of the Sensor is broken,replace it with new sensor sensor to see whether the sensor is damaged or not? The indoor PCB is broken, replace with new indoor PCB E4 Indoor EEPROM error: Replace the PCB of indoor unit...
  • Page 36 18HEK03 E14 :Indoor fan motor malfunction Notes: When the unit is on ,don’t pull out or insert the terminal of the motor (CN9), or else The motor would be damaged. whether terminal CN8 Pull out and reinsert the terminals and CN9 on indoor PCB well inserted or not? Electrify the machine again and turn it on in the cooling operation...
  • Page 37 18HEK03 HSU-18HEK03 performance curves cooling capacity and indoor/outdoor temp.curves indoor temp. outdoor temp.(humidity 46%) DB/WB 4593 4398 4354 4293 4298 4319 4045 3952 18/12 4833 4640 4623 4548 4529 4464 4208 3998 18/14 5075 4882 4839 4841 4760 4679 4411 4015 20/15 5049...
  • Page 38 HSU-18HEK03 performance curves heating capacity and indoor/outdoor temp.talbe indoor temp.(humidity 46%) outdoor temp. DB/WB 3045 2972 2875 3884 3798 3675 4284 4196 4069 4799 5200 4328 5300 5350 5100 5600 5500 5400 6100 5850 5600 heating capacity and indoor/outdoor temp.curves 6500 6000 5500...
  • Page 39 HSU-18HEK03 performance curves sensible cooling value-temerature talbe sensible cooling value temerature talbe outdoor temp.(humidity 46%) indoor temp. DB/WB 18/12 1857 1783 1720 1647 1489 1400 1315 1236 1936 1866 1789 1752 1545 1489 1360 1273 18/14 1982 1920 1845 1807 1634 1536 1408...
  • Page 40 HSU-18HEK03 performance curves power consumption value-teme.talbe power consumption value teme.talbe outdoor temp.(humidity 46%) indoor temp. DB/WB 1428 1487 1565 1720 1792 2087 2185 2104 18/12 18/14 1433 1492 1571 1726 1798 2096 2195 2114 20/15 20/15 1456 1517 1597 1755 1828 2130 2231...
  • Page 41 HSU-18HEK03 performance curves power consumption value-teme.talbe DB/WB 1342 1380 1423 1411 1450 1580 1430 1520 1600 1620 1650 1720 1520 1550 1600 1280 1320 1540 1250 1280 1430 power consumption value-teme.talbe 1800 1700 1600 1500 1400 1300 1200 outdoor tempe.(DB/WB) : http://splitoff.ru/tehn-doc.html...
  • Page 42 HSU-18HEK03 performance curves air outlet temp.-ambient teme.talbe outdoor temp.(humidity 46%) indoor temp. DB/WB 18/12 7.07 7.27 7.57 8.07 8.87 9.37 9.67 9.87 18/14 7.71 7.91 8.21 8.71 9.51 10.01 10.31 10.51 20/15 8.87 9.07 9.37 9.87 10.67 11.17 11.47 11.67 22/16 9.80 10.00...
  • Page 43 HSU-18HEK03 performance curves COOLING DISCHARGE PRESSURE.talbe outdoor temp. (humidity 46%) indoor temp. DB/WB 2240 2360 2540 2530 2640 2720 2864 2990 3190 3180 3290 3480 3310 3490 3620 3400 3573 3680 Cooling discharge pressure 4000 3800 3600 3400 3200 3000 2800 2600 2400...
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  • Page 45 HSU-18HEK03 Capacity 8.9 Cooling Suction Presure Curves HSU-18HEK03 performance curves COOLING SUCTION PRESSURE.talbe outdoor temp. indoor temp. (humidity 46%) DB/WB Cooling suction pressure 1000 Outdoor Temp Outdoor Temp Domestic air conditioner : http://splitoff.ru/tehn-doc.html...
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  • Page 48: Indoor Unit

    18HEK03 Indoor unit Connecting the indoor/outdoor Electric Cable Removing the wiring cover Remove terminal cover at right bottom corner of indoor unit, then take off wiring cover by removing its screws. When connecting the cable after installing the indoor unit 1.

  • Page 49: Outdoor Unit

    18HEK03 Outdoor unit Outdoor unit 1.Connection of pipes To bend a pipe, give the roundness as large as possible not to crush the pipe Connecting the pipe of gas side first makes working easier. The max vertical distance between the indoor unit and the outdoor unit is 5 m. Forced fastening without careful centering Half union Flare nut...
  • Page 50 18HEK03 : http://splitoff.ru/tehn-doc.html...

  • Page 51: Wiring Diagrams

    18HEK03 10.2 Wiring Diagrams Indoor RECEIVER DISPLAY FUSE : http://splitoff.ru/tehn-doc.html...
  • Page 52 18HEK03 Outdoor : http://splitoff.ru/tehn-doc.html...

  • Page 53: Circuit Diagram

    18HEK03 10.3 Circuit Diagrams CIRCUIT DIAGRAM +12V BUZZ 2SB1182 0.1UF 20K 1% TEST +12V 0.01UF Frash air C16 0.1UF AT24C02B CON8 CON7 BLACK 4.7uF-16V 3.3K 1% B4B-XH 4.7K 4.7uF-16V 2SC2412 0.01UF 0.01UF R31 1K CN7 S8B-PH /89401-0810 COM3 COM2 0.1UF 100uF-16V 0.1UF SRCK...
  • Page 54 18HEK03 : http://splitoff.ru/tehn-doc.html...
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  • Page 59 HSU-18HEK03 Removal Procedure 11.1 : http://splitoff.ru/tehn-doc.html...
  • Page 60 HSU-18HEK03 Removal Procedure Please embed the air filters into the unit along the grooves as installation. Please embed the hooks on air filter completely into the unit during installation. : http://splitoff.ru/tehn-doc.html...

  • Page 61: Removal Of Front Panel

    HSU-18HEK03 Removal Procedure 11.2 Removal of Front Panel Open the front panel until it is on the horizontal position, and then release the pivots on both sides of the unit to remove the front panel. Please close the panels before start the removal procedure of front grille.
  • Page 62 Removal Procedure HSU-18HEK03 HOOKS three : http://splitoff.ru/tehn-doc.html...
  • Page 63 HSU-18HEK03 Removal Procedure horizontal flap 11.3 flap flap flap flap : http://splitoff.ru/tehn-doc.html...
  • Page 64 HSU-18HEK03 Removal Procedure 11.4 : http://splitoff.ru/tehn-doc.html...
  • Page 65 Removal Procedure HSU-18HEK03 11.5 : http://splitoff.ru/tehn-doc.html...
  • Page 66 Removal Procedure HSU-18HEK03 11.6 : http://splitoff.ru/tehn-doc.html...
  • Page 67 HSU-18HEK03 Removal Procedure 11.7 : http://splitoff.ru/tehn-doc.html...
  • Page 68 Removal Procedure HSU-18HEK03 : http://splitoff.ru/tehn-doc.html...
  • Page 69 Removal Procedure HSU-18HEK03 11.8 : http://splitoff.ru/tehn-doc.html...
  • Page 70 Removal Procedure HSU-18HEK03 : http://splitoff.ru/tehn-doc.html...
  • Page 71 HSU-18HEK03 11.9 Removal of Outdoorunit : http://splitoff.ru/tehn-doc.html...
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  • Page 75 HSU-18HEK03 : http://splitoff.ru/tehn-doc.html...
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  • Page 77 HSU-18HEK03 58 : http://splitoff.ru/tehn-doc.html...
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  • Page 79 HSU-18HEK03 : http://splitoff.ru/tehn-doc.html...
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  • Page 81 18HEK03 Liu Tao Zhang Jing http://splitoff.ru/tehn-doc.html...

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