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AUX Air Conditioner Service manual

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3.2. fault diagnosis procedure

1 Unplug the indoors and outdoors and re-plug after about 5 seconds
2 Judge the LED light is on or not? Does Digital tube shows E4 error code or not?
3 Reference to the previous page about error diagnosis steps
4 Check chip output on the controller is normal or not?
5 Micro-controlled chip error
6 Check the input voltage of the fan motor enough or not
7 PCB error
8 Replace PCB
9 Probe position
10 PCB Cn10
11 Status
12 Normal voltage
13 #2. #3 socket
14 Motor running
15 About A.C 134V-160V
16 Fan motor capacitor disconnected to CN10
17 Fan motor false
18 Replace FAC
19 Fan motor false
20 Replace indoor fan motor

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Содержание EA Series

Страница 1: ...AUX One to Two Split Air Conditioner Service Manual EA EL HS Series ...

Страница 2: ...introductions 23 Section 5 The disassembly and the relating attention issues to the part of AUX product 32 Part 1 Indoor unit 32 Part 2 Outdoor unit 34 Section 6 Trouble shooting Guide 37 Section 7 Explosion View 47 Part 1 Indoor Unit 47 Part 2 Outdoor Unit 51 Section 8 Cooling Cycle Diagram 54 Section 9 Wiring Diagram 55 Section 10 Service Record 57 ...

Страница 3: ...sponsible for the interpretation of this information Nor can it assume any liability in connection with its use The information Specifications and parameter are subject to change due to technical modification or improvement without any prior notice The accurate specifications are presented on the nameplate label How to order spare parts To have your order filled promptly and correctly Please furni...

Страница 4: ...15 3 15 Refrigerant Charge g R407c 700 R407c 730 Type Rotary Rotary Model PG165X1C 4DFDE2 PG165X1C 4DFDE2 Rated input W 955 980 955 980 Compressor Overload Protector MRA13430 9087 B160 135 241E MRA13430 9087 B160 135 241E Heat exchanger Row Hole 2 10 2 10 1 31 Type Capillary tube Refrigerating System Expansion device Specification mm φ2 6 400 φ2 6 450 φ2 6 350 φ2 6 400 Air Volume m3 h 420 420 Cool...

Страница 5: ... 15 3 15 Refrigerant Charge g R407c 1100 R407c 980 Type Rotary Rotary Model 4KS225EBB 4PS164EAC Rated input W 1300 1325 920 945 Compressor Overload Protector Inner B165 150 241H Heat exchanger Row Hole 2 12 2 10 2 31 Type Capillary tube Refrigerating System Expansion device Specification mm φ3 0 500 φ3 0 500 φ2 6 350 φ2 6 300 Air Volume m3 h 620 420 Cooling r min 1180 1050 950 800 1080 950 900 800...

Страница 6: ... 3 15 3 15 Refrigerant Charge g R407c 1100 R407c 1100 Type Rotary Rotary Model 4KS225EBB 4KS225EBB Rated input W 1300 1325 1300 1325 Compressor Overload Protector Inner Inner Heat exchanger Row Hole 2 12 2 12 2 31 Type Capillary tube Refrigerating System Expansion device Specification mm φ3 0 500 φ3 0 500 φ3 0 500 φ3 0 500 Air Volume m3 h 620 620 Cooling r min 1180 1050 950 800 1180 1050 950 800 8...

Страница 7: ...igerant Charge g R410a 750 R410a 800 Type Rotary Rotary Model PA108X1C 4FZDE PA108X1C 4FZDE Rated input W 885 915 885 915 Compressor Overload Protector B160 135 241E MRA13430 9087 B160 135 241E MRA13430 9087 Heat exchanger Row Hole 2 11 2 11 1 31 Type Capillary tube Refrigerating System Expansion device Specification mm φ2 6 500 φ2 6 800 φ2 6 700 φ2 6 700 Air Volume m3 h 420 420 Cooling r min 980 ...

Страница 8: ... 15 Refrigerant Charge g R410a 1100 R410a 950 Type Rotary Rotary Model PA140X2C 4FT PA108X1C 4FZDE Rated input W 1160 1200 885 915 Compressor Overload Protector Inner B160 135 241E MRA13430 9087 Heat exchanger Row Hole 2 13 2 11 2 31 Type Capillary tube Refrigerating System Expansion device Specification mm φ3 0 900 φ3 0 1000 φ2 6 500 φ2 6 800 Air Volume m3 h 550 550 Cooling r min 1180 1050 900 80...

Страница 9: ... A 3 15 3 15 3 15 Refrigerant Charge g R410a 1150 R410a 1150 Type Rotary Rotary Model ASL135SV C7LU ASL135SV C7LU Rated input W 1120 1120 Compressor Overload Protector Inner Inner Heat exchanger Row Hole 2 13 2 13 2 31 Type Capillary tube Refrigerating System Expansion device Specification mm φ3 0 900 φ3 0 1000 φ3 0 900 φ3 0 1000 Air Volume m3 h 550 550 Cooling r min 1180 1050 900 800 1180 1050 90...

Страница 10: ...Fuse capacity A 3 15 3 15 3 15 Refrigerant Charge g R22 1280 R22 1280 Type Rotary Rotary Model 2P20S236A1G 2P20S236A1G Rated input W 1235 1235 Compressor Overload Protector Outer Outer Heat exchanger Row Hole 2 13 2 13 2 31 Type Capillary tube Refrigerating System Expansion device Specification mm φ3 0 1000 φ3 0 1000 Air Volume m3 h 520 520 Cooling r min 1180 1050 900 800 1180 1050 900 800 860 Fan...

Страница 11: ...ancel press it again sleep mode operation Wind direction adjusting button Press the button the horizontal airflow direction plate can adjust automatically When you have the desired wind direction please press it again the airflow direction plate will stop at the situation Fan speed selection button Use to select the indoor fan motor speed Power High Low Mute H M series Auto High Mid Low E series T...

Страница 12: ...at the change at the speed of three times per second Unit 10 minute After 5 seconds it will change at the speed of ten times per second Unit 10 minute YK R C 02JE These two buttons can adjust clock time and timer time Press it for 1 to 5 seconds time display will change at the change at the speed of two times per second For 5 to 10 seconds it will change at the speed of ten times per sec Unit 1 mi...

Страница 13: ...MODE button it shows the current operation mode You can select Feel Cool Dry Fan Heat operation mode Cold wind type has no heating display Temperature display Which displays the setting temperature In the circulation operation mode FEEL and FAN the temperature number don t display Timer ON OFF display Which displays the timer states the timer ON and the timer OFF don t set at the same time Time di...

Страница 14: ...tton select the automatic operation mode 2 Press the or button set the temperature temperature can be set at 1 difference range from 16 32 3 Press the button you can select fan speed The type of H M series You can select fan speed from Power High Low Mute The type of E series You can select fan speed from Auto High Mid Low 4 Press the button the operation indicator is on the air conditioner starts...

Страница 15: ...n be set at 1 difference range from 16 32 3 Press the button the operation indicator is on the air conditioner starts to operate the Dry mode Press the button again the air conditioner stops Remark The type of H M series In the dry operation mode the fan speed goes into MUTE automatically The type of E series In the dry operation mode the fan speed goes into LOW automatically Clock time setting 1 ...

Страница 16: ...er clears sleeping mode away Model YK R C 01E Fix batteries 1 Slide open the cover according the direction indicated by arrowhead 2 Put into two brand new batteries 7 position the batteries to right electric poles 3 Put back the cover Make sure to connect the wire to independent power source socket before you use the remote controller Note the waste battery shall be disposed properly Automatic ope...

Страница 17: ... air conditioner stops Remark In the circulation operation mode to set the temperature is noneffective Drying operation mode 1 Press the MODE button select the dry mode operation 2 Press or the button set the temperature temperature can be set at 1 difference range from 16 32 3 Press the button you can select fan speed The type of H M series You can select fan speed from Power High Low Mute The ty...

Страница 18: ... TIMER button once again the Timer OFF setting is finished Remark The remote controller can only be set 12 hours Sleeping operation mode 1 Press the button the sleeping indicator light of indoor unit flashes on 2 After the setting of sleeping mode the cooling operation enables the set temperature to increase 1 after 1 hour and another 1 automatically after 1 hour 3 After the setting of sleeping mo...

Страница 19: ...ave the desired wind direction please press it again the airflow direction plate will stop at the situation FAN button Use to select the indoor fan motor speed Power High Low Mute Remark The floor standing type select fan speed only from Low to High MODE button Which enables you to select different operation modes after each pressing the operation mode will be changed It shows in the following dis...

Страница 20: ...D shows the symbol the sleeping function of the air conditioner is started After 7 hours of setting this function the air conditioner will be off automatically Press the button once again The symbol disappears the function is cancelled at the same time This function is invalid when the appliance under the Fan mode POWER button or POWER QUIET button When it displays POWER button Press this button t...

Страница 21: ...time but also can set room humidity Adjusting clock time and timer time Press it once the time decreases one minute Press it for 1 to 3 seconds time display will decrease at the speed of 2min s For 3 to 5 seconds it will decrease at the speed of 10min s For more than 5 seconds it will decrease at the speed of 10min s Setting room temperature and room humidity Press it once the humidity decreases 5...

Страница 22: ...e from 16 to 32 3 Press the FAN button you can select fan speed from Low Mid High Auto 4 Press the Drying operation mode 1 Press the MODE button select the dry mode operation 2 Press or the button set the temperature range from 16 to 32 3 Press the FAN button you can select fan speed The type of H M series You can select fan speed from Power High Low Mute The type of E series You can select fan sp...

Страница 23: ...iming mode is cancelled Timer setting Set the Timer ON It is effective only when the air conditioner is shut off 1 Press the TIMER CLOCK button the remote controller display intermittently 2 Adjust time through pressing the or button 3 Press the TIMER CLOCK button once again the Timer ON setting is finished Set the Timer OFF It is effective only when the air conditioner is running 1 Press the TIME...

Страница 24: ...r Don t put the remote controller under the forceful sunrays or heating facilities and other heating sources Use two 7 batteries don t use the electric batteries Take the batteries out of remote controller before stop its using for long When the noise of transmitting signal can t be heard indoor unit or the transmission symbol on the display screen doesn t flare batteries need be replaced If reset...

Страница 25: ...on of turning off is room temperature set temperature 1 2 3 When cooling is operating after the compressor is started up it cann t be closed until 3 minutes later or only by turning off the machine or changing function mode 2 4 In cooling mode The freeze prevention function of indoor coil is valid 2 5 Indoor wind speed is operated by set wind speed 3 Dehumidify function 3 1 temperature is setted a...

Страница 26: ...en room temperature set temperature keeping the original state 5 5 Blow rest heat energy function the indoor fan motor will run in the mute model on the condition of indoor coil temperature 30 the indoor fan motor will turn off when the indoor coil temperature fall to below 30 and residual heating function will last less than 40s And the four way valve change in 2min 5 6 indoor fan motor control 5...

Страница 27: ...T e 52 and last for 3 mins the air conditioner will return to normal operations 2 This temperature protection function only works when the temperature sensor is work normal 5 7 Defrosting operation When one of A B or C D is defrosting if the other one is in heating mode it will turn to defrosting mode immediately Only when the two compressors meet the condition of finishing defrost can they get ba...

Страница 28: ...fter 1 hour operation and increase the temperature by 1 after another 1 hour Turn it off after 7 hours Refrigeration sleep operation Temperature Increase another 1 Increase 1 Original designed temperature 1h 2h 7h Turn off after sleeping 6 3 In heating sleep operate mode decrease the temperature by 2 after 1 hour operation And decrease the temperature by another 2 after 1 hour Turn it off after 7 ...

Страница 29: ...tes if T e 52 it gets back to normal operations 9 2 Indoor coil freeze prevent function 9 2 1 This function is only at refrigeration and dehumidify modes and invalid to other modes 9 2 2 When T e 2 for more than 2 minutes the compressor should stop running and indoor fan operates according to designed wind input 9 2 3 When the compressor stops operation it cannot be restarted until the indoor coil...

Страница 30: ...ee non heat cooling dehumidify heating include defrost standby closedown and ventilation mode A B and C D are independent and unaffected to each other The function mode of the outdoor unit is decided by the priority of the four modes Once outdoor unit function mode is decided the other compressor which doesn t fit the function mode would stop For example One of A B or C D firstly cooling dehumidif...

Страница 31: ...t stays at point 5 chart 3 while refrigeration then swing back to point 2 chart 3 3 The flap button on remote control can set the air blade to free swing or Manual swing 4 For free swing the swing scope of heating is 50 as chart 3 3 5 for cooling swing scope is 50 2 4 in chart swing speed is 5 5 s 5 When the machine is turned on while remote control set air blade non swing swing angle swings to a ...

Страница 32: ...ing 4 For free swing he swing scope of heating is 40 as chart 4 3 5 swing scope is 40 as 2 4 in chart swing rate for 5 5 S 5 When the machine is turned on while remote control set air blade non swing swing angle swings to a proper position according to different mode eg cooling mode is chart 4 position two heating mold is chart 4 position 5 If it s set as free swing open the fan air throttle swing...

Страница 33: ...is the electrical resistance for wind speed Cooling R9 Cooling heating R9 High power R7 Strong wind R12 Soft wind 12K 510 1230 1 2K 1200 1 2K 1100 15K 1 2K 1180 3K 1150 3K 1050 20K 2K 1130 5 1K 1100 5 1K 1000 27K 2 7K 1080 8 2K 1050 8 2K 950 36K 3 6K 1030 12K 1000 12K 900 57K 4 7K 980 20K 950 20K 850 82K 6 2K 930 36K 900 36K 800 150K 7 5K 880 82K 850 82K 750 Note mute wind mode 850rpm in heating m...

Страница 34: ...the panel 3 Hold the handles at both sides of the panel and push upward to have it slip out 4 Grasp the both sides of the panel and push upward 5 Turn the upper board by 90 and unload it from the connecting pole carefully 6 Take out the filter from the right and left side 7 Screw off the bolts on the electrical box cover and unload the box cover 8 Screw off the 5 bolts for 1Hp AC or 8 bolts for 1 ...

Страница 35: ...d is loosed by chance remove it away 3 Water draining tank 1 Do No 1 and 2 firstly offload the water drainage soft tube 2 Offload the water draining tank from chassis and take out the electrical components 4 Evaporator 1 Do No 1 2 and 3 firstly 2 Offload the connecting pipe 3 Offload the tube clip at the rear 4 Screw off the bolts at the right and left side 5 Lift up the evaporator and draw it out...

Страница 36: ...in chart 1 Take down the electrical cover unit 2 Loosen the two bolts on the 3 fixed wire calmp loosen the bolt on fixed powerline and communication lines of inside and outside unit take down the power connecting wire and inside and outside unit communication lines as shown in figure 2 3 The rewiring must strictly follow chart 3 The communication lines of A B systems including NO 1 and 2 wires and...

Страница 37: ... flow fan 8 Dismantle the bolts of fixed motor and motor holder takes down the motor and motor holder as shown in chart 8 9 As in figure 9 dismantle the nuts of the junction box cover in fixed A B system compressor and tip off connecting wire 1 and 2 from the compressor 10 As shown in chart 9 dismantle the bolts of the four way valve coils on fixed system A B and tip off four way valve coil from f...

Страница 38: ...elding points shown in chart 11 16 As shown in chart 12 dismantle condenser assembly A B system compressor and valve plate component figure10 figure11 figure12 figure13 figure14 17 When reconnecting the connecting pipes of inside and outside unit please strictly follow chart 14 A system match with A indoor unit B system match with B indoor unit Change them is prohibited ...

Страница 39: ...when the air conditioner receives the signal it will work 2 In the cooling mode room temperature is above the set temperature Compressor doesn t work but the indoor fan runs While the air conditioner is turned off it takes 3 minutes delay to restart it When the air conditioner is reelectrified it s the same case While compressor delays 3 minutes the air conditioner can regulate the wind speed in t...

Страница 40: ... Fault diagnosis procedure Note There is according with an outdoor unit and two indoor unit and a set of PCB Please check them accordingly 1 Unplug the indoors and outdoors and re plug after about 5 seconds 2 Listen if noise from buzzer or not 3 Check the indoor power wire connection and the fuse are intact or not 4 The outdoor PC board switched on communication signal or not 5 Check the indoor ou...

Страница 41: ...tage of RE1 RE2 fan RE3 RE4 4 way valve RE7 RE8 RE9 RE10 Compressor on the outdoor controller normal or not 23 Check the connection of compressor external fan and 4 way valve 24 Check 21 0V 42 5V of IC1 is normal or not 25 Replace relay 26 Check the output of 7821 and 7805 normal or not 27 Replace outdoor PCB board 28 Replace 7815 or 7805 3 indoor fan motor out of work Note Each air conditioner is...

Страница 42: ...ious page about error diagnosis steps 4 Check chip output on the controller is normal or not 5 Micro controlled chip error 6 Check the input voltage of the fan motor enough or not 7 PCB error 8 Replace PCB 9 Probe position 10 PCB Cn10 11 Status 12 Normal voltage 13 2 3 socket 14 Motor running 15 About A C 134V 160V 16 Fan motor capacitor disconnected to CN10 17 Fan motor false 18 Replace FAC 19 Fa...

Страница 43: ...wo independent sets of systems with a common fan There may be cases when one of the systems work well and the other doesn t and this needs to observe the running of compressor to make a judgment 1 Unplug the power and re plug after about 5 seconds 2 Is outdoor controller normal 3 Is output voltage of relay normal Socket connection is correc 4 Outdoor unit abnormal 5 Check according to powerless di...

Страница 44: ...Voltage changes between the 35 36 37 38 of the internal chip IC6 square wave 8 Chip IC6 error 9 Voltage between IC3 11 14 of the internal chip ULN2003AFW changes square wave 10 Driver chip IC3 ULN2003AFW is false 11 Step motor error 6 No hot wind blown in heating mold only for heat pump unit 6 1 Check item 1 Confirm temperature set by remote controller is lower than indoor temperature 2 Whether co...

Страница 45: ...abnormal 9 Relay out put normal or not 10 Replace IC4 11 Replace relay RE3 RE4 12 Four way valve or indoor and outdoor communication connection abnormal 13 Check the indoor and outdoor communication connection or replace 4 way valve 14 Replace PCB 7 Malfunction of remote controller 7 1 Fault diagnosis procedure 1 Take off the battery re plug after about 5 seconds 2 LED display mode ON or not 3 Che...

Страница 46: ...h the part it is likely to damage the other parts 3 Before replacing element cut off the power If the operation is with electricity on it may cause a shock short circuiting or other injuries 4 During the replacement or repair of parts please confirm whether electric wire or not on the circuit board surface position of diode Because the coarseness of circuit connector may cause the wire and compone...

Страница 47: ... fan motor Check Voltage 1 Whether have got normal AC voltage on CN9 or not 2 Electrify 2 DC voltage on IC6 Put in DC12V Put out DC5V Rectifier circuit goes wrong Step down voltage transformer broken Check voltage Circuit goes wrong 1 Check the control load of outdoor electrical units relay open 0 7V relay off 12V RELAID RE1 RE2 RE3 RE4 RE5 RE6 RE7 RE8 goes wrong 3 Special protect mode 2 Indoor fa...

Страница 48: ...AUX Air Conditioner Service manual 46 9 Fault analysis of major parts ...

Страница 49: ...AUX Air Conditioner Service manual 47 Section 7 Explosion View 1 Indoor Unit Model eg ASW H09A4 HS2R IVA ASW H09A4 HS2R IVB ASW H12A4 HS2R VA ASW H09A4 HS2R VB ASW H12A4 HS2R VIA ASW H12A4 HS2R VIB ...

Страница 50: ...ing holder 1 11 Plastic holder for left cruch of evaporator 1 12 Evaporator assembly 1 13 chassis 1 14 Mounting plate 1 15 Clamp of copper pipe 1 16 Indoor fan motor 1 17 Controller box 1 18 Transformer 1 19 Indoor sensor 1 20 Main PC board 1 21 Evaporator tube sensor 1 22 Remote manipulator acceptor 1 23 Temperature control probe holder 1 24 Receiver board 1 25 Terminal board 1 26 Anion generator...

Страница 51: ...itioner Service manual 49 Model eg ASW H09A4 EA L 2R1 IA ASW H09A4 EA L 2R1 IB ASW H12A4 EA L 2R1 IIA ASW H09A4 EA L 2R1 IIB ASW H12A4 EA L 2R1 IIIA ASW H12A4 EA L 2R1 IIIB ASW 12A2 EA L 2 IIIA ASW 12A2 EA L 2 IIIB ...

Страница 52: ...ator 1 15 Evaporator assembly 1 16 Chassis 1 17 Mounting plate assembly 1 18 Clamp of copper pipe 1 19 Indoot fan motor 1 20 Cover of indoor fan motor 1 21 Controller box 1 22 Transformer 1 23 Indoor sensor 1 24 Main PC board 1 25 Evaporator tube sensor 1 26 Remote receiver holder 1 27 Temperature control probe holder 1 28 Receiver board 1 29 Terminal board 1 30 Anion generator 1 Optional 32 Signa...

Страница 53: ...nditioner Service manual 51 2 Outdoor Unit Model eg AS H09A 09A4 HS2R IV AS H09A 12A4 HS2R V AS H12A 12A4 HS2R VI AS H09A 09A4 EA L 2R1 I AS H09A 12A4 EA L 2R1 II AS H12A 12A4 EA L 2R1 III AS 12A 12A2 EA L 2 III ...

Страница 54: ... A 1 16 Clamp for capacitor 2 17 Compressor capacitor for system B 1 18 Fan motor capacitor 1 19 Transformer 1 20 Outdoor controller main board 1 21 Three sockets terminal board 1 22 Two sockets terminal board 2 23 Main board holder 5 24 Electrical box 1 25 Compressor for system A 1 26 Compressor cushion for system A 3 27 Bolt 8 28 Small valve for system B 1 29 Big valve for system B 1 30 Small va...

Страница 55: ...AUX Air Conditioner Service manual 53 42 Fan motor 1 43 Cushion 1 44 Fan 1 45 Six angle nut 1 46 Steel grille 1 47 Big panel 1 48 Handle 1 49 Left hand holder plate 1 50 Small panel 1 ...

Страница 56: ...l odd cool model only applies the cooling process without four way valve Cooling Cycle Diagram 1 four way valve 2 capillary tube 3 single way valve 4 aux capillary tube 5 evaporator 6 indoor unit motor 7 outdoor unit 8 compressor 9 liquid valve 10 through flow fan 11 gas valve 12 indoor unit 13 condenser 14 outdoor motor 15 axial flow fan ...

Страница 57: ...g Diagram Applicable to HS E 1 Indoor Unit Indoor Unit Electric Chart Multi Heat Auto Button 2 Outdor Unit a Heat Pump Model A A Protector Overcurrent B Controlling Panel B A Outdoor Unit Electric Chart Two Split System Multi Heat Overcurrent Protector B ...

Страница 58: ...AUX Air Conditioner Service manual 56 b Single Cooling Model ...

Страница 59: ...3 Wiring diagram for Original Multi type a Indoor unit Wiring diagram b Outdoor unit Wiring diagram 57 ...

Страница 60: ...AUX Air Conditioner Service manual 57 Section 10 Service Record Date Page Part Cause Report ...

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