Haier 1U18BR4EAA, Service Manual

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 2017 Qingdao Haier Air Conditioner General corp Ltd All rights reserved Unauthorized copying and di...

Page 2: ... conditioner Contents 1 Introduction 1 2 Specifications 7 3 Piping diagrams 9 4 Operation range 10 6 Dimensional drawings 7 Center of gravity 8 Service Diagnosis 5 Circuit diagrams 13 12 12 11 9 Perfomance Curves Diagram 18 ...

Page 3: ...l name explanation 1 U 1 8 E R 4 E A A The maximum combination number Type of outdoor unit U normal type Nominal cooling capacity 18000BTU h Platform of outdoor units E Platform District Version number Heat pump R410A refrigerant AC Apply toT1 220 240V50HZ 1ph 1 ...

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Page 9: ...p d n u o S ELECTRICAL SPECIFICATIONS A t n e r r u c g n i n n u r l a n i m o N Maximum running current A TECHNICAL SPECIFICATIONS PARTS g n i t a e h g n i l o o c Compressor r o s s e r p m o C y r a t o R e p y T ASH201SV C8LU l e d o M 0 65 1 W t u p t u o r o t o M Oil type 68HES H or equivalent 5 8 1 L e m u l o v e g r a h c l i O Fan n a f l a i x A e p y T 0 3 W t u p t u o r o t o M 7 ...

Page 10: ...meter liquid mm 6 35 gas mm 12 7 drain mm 16 Heat insulation type Both liquid and Gas pipes Max piping Length m 25 Max Level Difference m 5 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 h t g n e l g n i p i P g n i t a e h g n i l o o c Indoor 27 DB 19 WB Outdoor 35 DB 24 WB Indoor 20 DB Outdoor 7 DB 6 WB 7m Con...

Page 11: ...Piping diagrams Domestic air conditioner 3 Piping diagrams 9 ...

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Page 13: ...E BL BLUE FAN MOTOR 2 There are no dotted lines on cool only type marked with Wire is connected from 4 marked with on terminal block to 1 TO INDOOR FRESH AIR MOTOR 4 way valve CAPACITOR CAPACITOR 1 See above for wiring of heat pump type NOTE 1 FRESH AIR MOTOR 3 Some of cool only type terminal block only have 1 2 and but no the parts 4 The parts are optional 2 Y G 3 2 3 1 Circuit Diagram 11 ...

Page 14: ...Dimensinal drawings Domestic air conditioner 6 Dimensional drawings 7 Center of gravity 12 780 245 780 780 245 12 7 unit mm unit mm ...

Page 15: ...ion error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages 8 2 Parameter of primary electronic appliance 13 e r u t c i P r e t e m a r a P e m a N O N 1 Compressor Rated voltage 220 240V Rated current 7 7A Rated frequency 50 Hz Resistance 2 06 2 Fan motor Rated voltage 220 230V Rated current 0 35A Rated frequency 50 Hz 3 ...

Page 16: ...es 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 pressure and ope...

Page 17: ... I 4 E 1 2 n o i t c n u f l a m r o t o m n a f r o o d n I 4 1 E The code indication that is listed above is the main fault Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred 8 4 2 1 Thermistor or Related Abnormality Indoor Display E1 Room temperature sensor failure E2 Heat exchange sensor failure Method of The tem...

Page 18: ...ror or the EEPROM is damaged Decision Supposed Faulty EEPROM data Causes Faulty EEPROM Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Thermistor resistance check Is it normal Yes No Yes Is it normal No Check the connector connection Replace the thermistor Replace the indoor unit PCB Correct the connection R...

Page 19: ...lse 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 run when turn on the unit the indoor motor is damaged and need replace Yes No No Yes Measure whether there is voltage p...

Page 20: ...Performance Curves Diagram Domestic air conditioner 9 Performance Curves Diagram 9 1 Cooling capacity temperature curves 18 ...

Page 21: ...Domestic air conditioner 9 2 heating capacity temp curves 19 Performance Curves Diagram ...

Page 22: ...Domestic air conditioner 20 9 3 Cooling power consumption temp curves Performance Curves Diagram ...

Page 23: ...Domestic air conditioner 9 4 heating power consumption temp curves 21 Performance Curves Diagram ...

Page 24: ... air conditioner Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China_ Http www haier com Edited by Signed by Approved by Wang Fang Yang Xiaodong He shiquan Wu Hongjin The end ...

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Page 26: ...1 Removal of outdoor panel 1 ...

Page 27: ...1 Removal of Electrical Box 2 ...

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Page 30: ...2 Removal of Electrical Box 5 ...

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Page 32: ...9 12 Removal of fan motor bracket and partition 7 ...

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Page 34: ...9 13 Removal of compressor and heat exchanger 9 ...

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