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Haier HW-07LN03 Service Manual

Summary of HW-07LN03

  • Page 1

    Haier air conditioner edition: 200 70 925 - 1 - domestic air conditioner service manual z feature z four side air flowing z power failure compensation z auto right/left swing z two cooling/fan/dehumidifying setting z 24 hours on/off z sliding chassis design hw-07ln03 model hw- 12ln03 hw-0 9ln03.

  • Page 2

    Haier air conditioner edition: 200 70925 - 2 - 1. Product code illumination and series introduction 1). Model code rule description model identification: a: abbreviation of haier b: abbreviation of window c: nominal cooling capacity (btu/h) with the first two numbers based on one thousand unit. D: f...

  • Page 3

    Haier air conditioner edition: 200 70925 - 3 - content 1. Product code illumination and series introduction........................... 2 2. Specifications....................................................................................4 3. Main components and accessories' name.......................

  • Page 4

    Haier air conditioner edition: 20070925 - 4 - 2. Specification item hw-07ln03 hw-09ln03 cooling capacity w 2100 2500 heating capacity w / / power supply 1, 220, 50 1, 220, 50 power input w 980 1000 running current a 4.6 4.8 cooling eer w/w 2.65 2.5 power input w / / running current a / / heating cop...

  • Page 5

    Haier air conditioner edition: 200 70925 - 5 - 3. Main components and accessories' name front panel air inlet (indoor side) air outlet (indoor side) control panel air inlet (outdoor side).

  • Page 6

    Haier air conditioner edition: 200 70925 - 6 - 1. Temp. / time display 2. Temp./time set used to set time or temp. Setting. 3. Mode used to se lect operation mode: fan, cool, dehum 4. F an speed used to select desired fan speed :low or high 5. T imer used for timer start or stop. 6. Swing used to ac...

  • Page 7

    4.Printed circuit board connector wiring diagram connectors indoor pcb 1)cn2 connector for room temp. Sensor. 2)cn3 connector for receiver display. 3)cn8 connector for high fan. 4)cn10 connector for low fan. 5)cn11 connector for fan motor. 6)cn12 connector for louver motor. 7)cn13 connector for louv...

  • Page 8

    Receiver display 5 . Functions and control 5.1 introduction to electrical control functions including brief introduction to air conditioners of series models and electric control function. 5.1.1 cooling run mode: temperature control range :16℃—30℃ temperature control precision: ±1℃ compressor can’t ...

  • Page 9

    When tr>ts+2℃, the compressor run continuously with indoor fan motor running in accordance with the wind speed setting. When ts-1 ≤ tr ≤ ts +2℃, the compressor will cycle for 10 minutes on and 6 minutes off, when tr timer on, timer off control are available. 5.1.3 fan mode： the temperature set unava...

  • Page 10

    5.3 value of thermistor room temperature sensor r25℃=5kΩ±1% b25 /50 ℃ ℃ =3450k±1% temp.(℃) max.(kΩ) normal(kΩ) min.(kΩ) tolerance(℃) -20 38.5398 37.3992 36.2887 -1.78 1.62 -19 36.5922 35.5274 34.4900 -1.76 1.60 -18 34.7549 33.7607 32.7916 -1.74 1.59 -17 33.0211 32.0927 31.1872 -1.72 1.57 -16 31.3843...

  • Page 11

    14 7.8765 7.7643 7.6530 -1.03 1.00 15 7.5551 7.4506 7.3468 -1.00 0.98 16 7.2487 7.1513 7.0546 -0.98 0.96 17 6.9565 6.8658 6.7757 -0.95 0.94 18 6.6778 6.5934 6.5095 -0.93 0.91 19 6.4118 6.3333 6.2552 -0.90 0.89 20 6.1579 6.0850 6.0124 -0.88 0.87 21 5.9156 5.8479 5.7803 -0.85 0.84 22 5.6841 5.6213 5.5...

  • Page 12

    55 1.7590 1.7232 1.6879 -1.94 1.83 56 1.7032 1.6680 1.6333 -1.99 1.87 57 1.6495 1.6149 1.5808 -2.03 1.91 58 1.5977 1.5636 1.5301 -2.07 1.95 59 1.5477 1.5142 1.4813 -2.12 1.99 60 1.4995 1.4666 1.4343 -2.16 2.03 61 1.4530 1.4206 1.3889 -2.21 2.07 62 1.4081 1.3763 1.3452 -2.25 2.11 63 1.3648 1.3336 1.3...

  • Page 13

    6. Circuit diagram circuit diagram 1 1 2 3 4 a b c d 4 3 2 1 d c b a r60 510Ω r59 2.4k r56 2.4k r58 2.4k r57 2.4k sw7 ts tc-2l （ 6*6* 7） sw6 ts tc-2l （ 6*6* 7） sw5 ts tc-2l （ 6*6* 7） sw4 ts tc-2l （ 6*6* 7） sw3 ts tc-2l （ 6*6* 7） r50 330Ω led4 Ф 3 - g r e e n led3 Ф 3 - g r e e n r53 330Ω r54 330Ω r4...

  • Page 14

    Haier air conditioner edition: 200 70925 - 14 - 7.Maintenance.

  • Page 15

    Haier air conditioner edition: 200 70925 - 15 - avoid opening doors and windows unless necessary. Don't be exposed to cold air for a long time. Use curtain or blind direct sunlight may reduce cooling effect, always use window curtain. Keep heat source away from air conditioner. Set temp. A little bi...

  • Page 16

    Haier air conditioner edition: 200 70925 - 16 - disposal of the condensed water generally there are two methods available on disposal of the condensed water: 1. Block the bottom plate hole of the conditioner with rubber lid, install drain elbows on the back hole and let the condensing water flow fro...

  • Page 17

    Haier air conditioner edition: 200 70925 - 17 - cleaning of the shell and remote controller wipe the shell with soft cloth. If it is very dirty, please use water with diluted neutral detergent. In wiping, first twist out the water in the cloth. Wipe out the detergent on the machine shell completely....

  • Page 18

    Haier air conditioner edition: 200 70925 - 1 8 - 8. Trouble shooting before sending to repair, please first check the following: phenomenon reason switch on the machine but it does not work immediately. If the machine is started after stop, it will need about 3 minutes to re-start so as to prevent f...

  • Page 19

    Trouble shooting e0: room temperature sensor failure cn2 e1: keystroke circuit error diagnose yes no yes whether terminal cn2 on indoor pcb contact well? Pull out the terminals on the indoor mainboard and reinsert them pull the sensor out of the mainboard 1) measure the value of resistance between i...

  • Page 20

    Haier air conditioner edition: 200 70925 - 20 - 10. System flow chart.

  • Page 21

    Part may not be used. Note:1.Because of different compressor,the dotted 2.The parts ① are optional haier air conditioner edition: 200 70 925 7. Wiring diagram - 21 -.

  • Page 22

    Haier air conditioner edition: 20070925 - 22 - 9. Installation and repairing selection of the installation position 1. The air-conditioner is better installed in shadow or in a place with short period of sunshine. In case the air-conditioner is installed at the point exposed directly to the sunshine...

  • Page 23

    Haier air conditioner edition: 20070925 - 23 - the enclosed accessories of the conditioner are: 1. Make the wall hole or window hole 2. Fix the prefabricated iron frame to stable (r-03 dry battery) 1 1 name figure quantity outlet pipe fitting 1 drain pan sealed gasket 1 screw 2 manual 1 2 hw-09ln03 ...

  • Page 24

    Haier air conditioner edition: 200 70925 - 24 - 3. Take out the conditioner and accessories from the package . 4. Lift the back of the machine body slightly. You can see the drain hole at the back of the bottom plate. Plug the black rubber lid of the enclosed accessories into the hole. (see fig. 5)....

  • Page 25

    Performance curve return gas temperature 35 subcooling 8.3 run capacitor 40 μf / 370 vac ambient temperature 35 c c c 44r193ae 220v / 50hz / 1ph model power supply ˖̂́˷ˁʳ˧˸̀̃˸̅˴̇̈̅˸ 1000 1150 1300 1 450 1 6 00 1 75 0 1 9 00 2050 2200 2350 2500 ˃ ˄ ˅ ˆ ˇ ˈ ˉ ˊ ˋ ˌ ˄˃ ˄˄ ˄˅ ˖ ˴̃ ˴˶˼ ̇̌ ʳʻ˞ ˶˴˿ ˂˛ ̅ʼ ˈ...

  • Page 26: Hw-09Ln03

    Appendix 3. Performance curve return gas temperature 35℃ model 44r233c subcooling 8.3℃ power supply 220v / 50hz / 1ph run capacitor 25 μf / 370 vac ambient temperature 35℃ cond. Temperature 1600 1750 1900 2050 2200 2350 2500 2650 2800 2950 3100 0 1 2 3 4 5 6 7 8 9 10 11 12 c ap ac it y (k ca l/ h r)...

  • Page 27

    Haier air conditioner edition: 20070925 - 27 - haier group haier industrial park, no.1, haier road 266101, qingdao, china http://www.Haier.Com.