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14

Troubleshooting

9. Troubleshooting

Phenomena

Possible causes

Solution

The unit 

does not

start up 

No action  after
energized 

No power supply

Check power supply circuit

Bad insertion for power supply plug

or bad contact. 

Check the plug and insert it 

well to make it well contact.

Protective tube is broken (on the 

controller)

Replace controller

Controller is broken (power supply 

circuit, slug, crystal vibration)

Replace controller

water blow indicator

blinks 

Water tank is water blow

Pull water

Water tank is on the wrong location

Put the water tank well

Malfunction for water level switch and 

circuit

Check water level switch

and circuit 

Nixie tube displays
F2 

Malfunction for pipe temperature sensor
(bad contact, loosened, leading wire is

broken, resistance value of temperature

sensor head is abnormal.) 

Re-connect temperature 
sensor

Or replace temperature sensor

Malfunction for temperature sense 

circuit of circuit 

Replace controller

Filter lamp is on

Filter is dirty

Clean the filter

Inlet and outlet are blocked

Remove barrier

Loud noise

The spare

 

parts are loosened

Find out the loosened parts

and tight it 

The louver is off-center

Replace the louver

Malfunction for compressor

Replace compressor

Note: Above malfunction analysis is only for reference.

Содержание CK05100771

Страница 1: ...Service Manual GDN16AH K4EAB1A 1W GDN20AH K4EAB1A 1W GDN24AH K4EAB1A 1W Refrigerant R134a MODELS GREE ELECTRIC APPLIANCES INC OF ZHUHAI standby standby standby...

Страница 2: ...ons 2 2 Specifications 3 3 Construction Views 5 4 Refrigerant System Diagram 6 5 Schematic Diagram 7 5 1 Electrical Wiring 7 5 2 Printed Circuit Board 8 6 Description of Each Control Operation 10 8 Ex...

Страница 3: ...Summary and Features GDN16AH K4EAB1A 1W GDN20AH K4EAB1A 1W GDN24AH K4EAB1A 1W Models 4HR S 2HR S HIGH LOW HUM IDITY BUCK ET FULL POW ER CONT INUOU S FILTE R RESE T TIMER FAN SPEE D ON O FF FILTE R st...

Страница 4: ...on may lead to overheating and a possible fire hazard All installation or repair work shall be performed by your dealer or a specialized subcontractor as there is the risk of fire electric shock explo...

Страница 5: ...PCB 3 15A Sound Pressure Level H M L dB A 54 52 54 52 54 52 Sound Power Level H M L dB A 64 62 64 62 64 62 Climate Type T1 T1 T1 Isolation I I I Moisture Protection IP24 IP24 IP24 Permissible Excessiv...

Страница 6: ...XDXW mm 235X12 7X190 5 235X25 4X190 5 235X25 4X190 5 Compressor Compressor Manufacturer Trademark Shanghai Hitachi Electrical Appliances Co Ltd HIGHLY Shanghai Hitachi Electrical Appliances Co Ltd HIG...

Страница 7: ...5 Construction Views 3 Construction Views 4HRS S R H 2 HIGH LOW HUMIDITY BUCKET FULL POWER CONTINUO US FILTER RESET TIMER FAN SPEED ON OFF FILTER 40 inches 40 inches...

Страница 8: ...m is in cooling operation with centrifugal motor the air will discharge after it pass to evaporator and condenser in turn When the air is passing evaporator the heat quantity imbibed by refrigerant wi...

Страница 9: ...ctrical Wiring Symbol Color symbol Symbol Color symbol WH WHITE BN BROWN YE YELLOW BU BLUE RD RED BK BLACK YEGN YELLOW GREEN COMP COMPRESSOR PROTECTIVE EARTH 3 4 J1 PLUG PE E These circuit diagrams ar...

Страница 10: ...ed or button is pressed 14 Humidity button A button to decrease set humidity 5 Dual 8 Nixie Tube Display ambient humidity or set humidity 15 Humidity button A button to increase set humidity 6 Overflo...

Страница 11: ...n 1 Needle stand of overflow protector Connect to overflow protector 4 Port of live wire Connect to live wire 2 Needle stand for connection of board Connect to display board 5 Port of compressor Conne...

Страница 12: ...ed nixie tube displays F1 b If pipe temperature sensor malfunction is detected nixie tube displays F2 c If these two temperature sensors malfunction are detected nixie tube will display F1 and F2 in t...

Страница 13: ...fan is in low speed Filter cleaning lamp the lamp is on when the operation time of fan reaches to 250h totally Water blow protection lamp the lamp blinks if water blow protection is occurred 5 Timer...

Страница 14: ...ws and Parts List 4HRS 2HRS HIGH LOW HUMID ITY BUCKE T FULL POWE R CONT INUOU S FILTER RESET TIMER FAN SPEED ON OF F FILTER 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 24 25 26 27 28 29 3...

Страница 15: ...6 24216056 1 20 Cover Plate 20126079 20126079 20126079 1 21 Handle 26236019 26236019 26236019 1 22 Capillary Sub assy 03006102 03006103 03006103 1 23 Condenser Sub Assy 01136038 01136039 01136040 1 24...

Страница 16: ...Put the water tank well Malfunction for water level switch and circuit Check water level switch and circuit Nixie tube displays F2 Malfunction for pipe temperature sensor bad contact loosened leading...

Страница 17: ...SET TIMER FAN SPEED ON OFF FILTER 4HRS 2HRS HIGH LOW HUMIDITY BUCKET FULL POWER CONTINU OUS FILTER RESET TIMER FAN SPEED ON OFF 4HRS 2HRS HIGH LOW HUMIDITY BUCKET FULL POWER CONTINUOUS FILTER RESET TI...

Страница 18: ...e electric box cover Unlock locks on the top and right side and then remove the electric box cover Remove front case Remove 2 screws fixing front case and then the temp sensor and humidity sensor Remo...

Страница 19: ...screws fixing cover plate and then remove the cover plate Remove handle Lift the handle and move it horizontally to remove the handle Remove centrifugal blade Remove nut of motor shaft and washer whi...

Страница 20: ...ve motor wire connecting to mainboard and ground wire connecting to side plate of evaporator Remove 3 screws of motor and then the motor Remove electric box Unplug power cord connecting to mainboard w...

Страница 21: ...der welding point respectively connecting to condenser and evaporator Then remove the condenser and evaporator Note before unsoldering eliminate refrigerant completely Remove water tray Remove 2 screw...

Страница 22: ...and discharge pipe Unsolder suction pipe and discharge pipe Eliminate refrigerant completely before unsoldering Remove compressor Remove 3 hold down nuts of compressor and then remove compressor comp...

Страница 23: ...move 4 screws fixing support and then remove the support subassembly Remove caster wheel Remove 2 screws of caster wheel and the remove casters one by one Disassembly of front case Remove duct Remove...

Страница 24: ...ont panel Remove 2 screws fixing front panel Hold the bottom of the front panel and slide it upward to push it out Remove control cover plate Remove 3 screws between control cover plate and front case...

Страница 25: ...panel Remove screws fixing display panel to separate it from control cover plate Disassemble electric box subassembly Remove screws fixing fan and compressor capacitor Then remove capacitors of fan an...

Страница 26: ...GREE ELECTRIC APPLIANCES INC OF ZHUHAI Add Jinji west Rd Qianshan Zhuhai Guangdong China Post code Tel 86 756 8522219 After sale Service Dept...

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