Gree GWH07AAA-K3NNA1A User manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
Models: GWH07AAA-K3NNA1A
GWH07AAA-K3NNA2A
GWH09AAA-K3NNA2A
GWH09AAA-K3NNA1A
GWH09AAB-K3NNA1A
GWH09AAB-K3NNA2A
GWH12AAB-K3NNA2A
(Refrigerant R410A)

Service Manual
Table of Contents
Part Ⅰ: Technical Information......................................................................... 1
1.Summary ......................................................................................................................... 1
2. Specications............................................................................................................ 2
2.1 Specication Sheet............................................................................................................. 2
2.2 Capacity Curve in Different Outdoor Temperature ............................................................. 8
2.3 Cooling and Heating Data Sheet in Rated Frequency ....................................................... 8
3. Outline Dimension Diagram.......................................................................... 9
3.1 Indoor Unit.......................................................................................................................... 9
3.2 Outdoor Unit ..................................................................................................................... 10
4. Refrigerant System Diagram.......................................................................11
5. Electrical Part........................................................................................................... 12
5.1 Wiring Diagram................................................................................................................. 12
5.2 PCB Printed Diagram ....................................................................................................... 15
6. Function and Control........................................................................................ 16
6.1 Remote Controller Introduction ....................................................................................... 16
6.2 Brief Description of Modes and Functions........................................................................ 20
Part Ⅱ: Installation and Maintenance ................................................... 25
7. Notes for Installation and Maintenance............................................ 25
8. Installation.................................................................................................................. 27
8.1 Installation Dimension Diagram........................................................................................ 27
8.2 Installation Parts-Checking .............................................................................................. 29
8.3 Selection of Installation Location...................................................................................... 29
8.4 Electric Connection Requirement..................................................................................... 29
8.5 Installation of Indoor Unit.................................................................................................. 29
8.6 Installation of Outdoor unit ............................................................................................... 32
8.7 Vacuum Pumping and Leak Detection ............................................................................. 33
8.8 Check after Installation and Test operation ...................................................................... 33
9. Maintenance.............................................................................................................. 34
9.1 Error code......................................................................................................................... 34
9.2 Procedure of Troubleshooting .......................................................................................... 36
9.3 Maintenance method for normal malfunction ................................................................... 41
Table of Contents

Service Manual
10. Exploded View and Parts List ................................................................... 43
10.1 Indoor Unit.........................................................................................................................43
10.2 Outdoor Unit ......................................................................................................................47
11. Removal Procedure............................................................................................ 51
11.1 Removal Procedure of Indoor Unit ....................................................................................51
11.2 Removal Procedure of Outdoor Unit .................................................................................56
Appendix:.............................................................................................................................65
Appendix 1: Reference Sheet of Celsius and Fahrenheit .........................................................65
Appendix 2: Conguration of Connection Pipe.......................................................................... 65
Appendix 2: Pipe Expanding Method ........................................................................................66
Appendix 4: List of Resistance for Temperature Sensor ...........................................................67
Table of Contents

1
Technical Information
Service Manual
1.Summary
Indoor Unit:
GWH07AAA-K3NNA1A/I GWH09AAA-K3NNA1A/I
GWH09AAB-K3NNA1A/I
GWH07AAA-K3NNA2A/I GWH09AAB-K3NNA2A/I
GWH12AAB-K3NNA2A/I GWH09AAA-K3NNA2A/I
Part Ⅰ: Technical Information
Outdoor Unit:
GWH07AAA-K3NNA1A/O GWH09AAB-K3NNA1A/O
GWH09AAA-K3NNA1A/O
GWH12AAB-K3NNA2A/O
Remote Controller:
YAW1F

2Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model GWH07AAA-K3NNA1A
GWH07AAA-K3NNA2A
GWH09AAB-K3NNA1A
GWH09AAB-K3NNA2A
Product Code CA115013600
CA115014000
CA115013700
CA115013900
Power
Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Power Supply Mode Indoor Indoor
Cooling Capacity W 2200 2638
Heating Capacity W 2300 2755
Cooling Power Input W 685 821
Heating Power Input W 637 763
Cooling Power Current A 3.5 4.0
Heating Power Current A 3.2 3.5
Rated Input W 1050 1150
Rated Current A 5.5 5.6
Air Flow Volume(SH/H/M/L/SL) m3/h 470/420/370/250/- 570/500/430/300/-
Dehumidifying Volume L/h 0.6 0.8
EER W/W 3.21 3.21
COP W/W 3.61 3.61
SEER W/W / /
HSPF W/W / /
Application Area m210-16 12-18
Indoor Unit
Model of Indoor Unit GWH07AAA-K3NNA1A/I
GWH07AAA-K3NNA2A/I
GWH09AAB-K3NNA1A/I
GWH09AAB-K3NNA2A/I
Product Code of Indoor Unit CA115N13600
CA115N14000
CA115N13700
CA115N13900
Fan Type Cross-ow Cross-ow
Diameter Length(DXL) mm Φ92X505 Φ93X580
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 1300/1200/1100/850/- 1300/1200/1100/850/-
Fan Motor Heating Speed(SH/H/M/L/SL) r/min 1200/1100/1000/900/- 1250/1150/1050/900/-
Output of Fan Motor W 10 20
Fan Motor RLA A 0.15 0.22
Fan Motor Capacitor μF 1 1
Input of Heater W / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7.94 Φ7.94
Row-n Gap mm 1-1.2 1-1.2
Coil Length (LXDXW) mm 508X19.05X254 583X19.05X264
Swing Motor Model MP24AN MP24AN
Output of Swing Motor W 1.5 1.5
Fuse A 3.15 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 40/38/35/27/- 40/37/35/27/-
Sound Power Level (SH/H/M/L/SL) dB (A) 50/48/45/37/- 50/47/45/37/-
Dimension (WXHXD) mm 698X250X185 773X250X185
Dimension of Carton Box (LXWXH) mm 742X306X244 817X306X244
Dimension of Package (LXWXH) mm 747X322X255 822X322X255
Net Weight kg 7.5 8.5
Gross Weight kg 8.5 9.5

3
Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit GWH07AAA-K3NNA1A/O GWH09AAB-K3NNA1A/O
Product Code of Outdoor Unit CA115W13600 CA115W13700
Compressor Manufacturer/Trademark ZHUHAI LANDA
COMPRESSOR CO.,LTD
ZHUHAI LANDA
COMPRESSOR CO.,LTD
Compressor Model QXA-A081A130A QXA-B102C130
Compressor Oil RB68EP/FVC68D/FV50S RB68EP/FV50S
Compressor Type Rotary Rotary
L.R.A. A 15 17
Compressor RLA A 3.25 4
Compressor Power Input W 680 865
Overload Protector UP3-MC0（L）UP3- 00
Throttling Method Capillary Capillary
Operation Temp oC 16~30 16~30
Ambient Temp (Cooling) oC 18~43 18~43
Ambient Temp (Heating) oC -7~24 -7~24
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7.94 Φ7.94
Rows-n Gap mm 1-1.4 1-1.4
Coil Length (LXDXW) mm 658.3X19.05X396 655X19.05X396
Fan Motor Speed rpm 320 320
Output of Fan Motor W 20 20
Fan Motor RLA A 0.25 0.25
Fan Motor Capacitor μF 1.5 1.5
Air Flow Volume of Outdoor Unit m3/h 1200 1200
Fan Type Axial-ow Axial-ow
Fan Diameter mm Φ320 Φ320
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IPX4 IPX4
Permissible Excessive Operating Pressure for
the Discharge Side MPa 4.3 4.3
Permissible Excessive Operating Pressure for
the Suction Side MPa 2.5 2.5
Sound Pressure Level (H/M/L) dB (A) 49/-/- 48/-/-
Sound Power Level (H/M/L) dB (A) 59/-/- 58/-/-
Dimension (WXHXD) mm 720X428X310 720X428X310
Dimension of Carton Box (LXWXH) mm 765X350X475 765X350X475
Dimension of Package (LXWXH) mm 768X353X490 768X353X490
Net Weight kg 22 25.5
Gross Weight kg 24 27.5
Refrigerant R410A R410A
Refrigerant Charge kg 0.55 0.63
Connection
Pipe
Length m 5 5
Gas Additional Charge g/m 20 15
Outer Diameter Liquid Pipe mm Φ6 Φ6
Outer Diameter Gas Pipe mm Φ9.52 Φ9.52
Max Distance Height m 10 10
Max Distance Length m 15 15
Note: The connection pipe applies metric diameter.

4Technical Information
Service Manual
Model GWH09AAA-K3NNA2A
GWH09AAA-K3NNA1A GWH12AAB-K3NNA2A
Product Code CA115016500
CA115014400 CA115014100
Power
Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Power Supply Mode Indoor Indoor
Cooling Capacity W 2550 3250
Heating Capacity W 2650 3400
Cooling Power Input W 794 1012
Heating Power Input W 734 941
Cooling Power Current A 3.7 4.32
Heating Power Current A 3.3 4.40
Rated Input W 1120 1230
Rated Current A 6.2 6.3
Air Flow Volume(SH/H/M/L/SL) m3/h 470/420/370/250/- 550/500/430/330/-
Dehumidifying Volume L/h 0.8 1.2
EER W/W 3.21 3.21
COP W/W 3.61 3.61
SEER W/W / /
HSPF W/W / /
Application Area m212-18 15-22
Indoor Unit
Model of Indoor Unit GWH09AAA-K3NNA2A/I
GWH09AAA-K3NNA1A/I GWH12AAB-K3NNA2A/I
Product Code of Indoor Unit CA115N16500
CA115N14400 CA115N14100
Fan Type Cross-ow Cross-ow
Diameter Length(DXL) mm Φ92X505 Φ93X580
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 1300/1200/1100/850/- 1350/1200/1100/850/-
Fan Motor Heating Speed(SH/H/M/L/SL) r/min 1200/1100/1000/900/- 1350/1200/1100/900/-
Output of Fan Motor W 10 20
Fan Motor RLA A 0.15 0.215
Fan Motor Capacitor μF 1 1
Input of Heater W / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7.94 Φ7.94
Row-n Gap mm 1-1.2 1-1.2
Coil Length (LXDXW) mm 508X19.05X254 583X19.05X264
Swing Motor Model MP24BA MP24AN
Output of Swing Motor W 1.5 1.5
Fuse A 3.15 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 40/38/35/26/- 42/39/36/33/-
Sound Power Level (SH/H/M/L/SL) dB (A) 50/48/45/36/- 52/49/46/43/-
Dimension (WXHXD) mm 698X250X185 773X250X185
Dimension of Carton Box (LXWXH) mm 742X306X244 817X306X244
Dimension of Package (LXWXH) mm 747X322X255 822X322X255
Net Weight kg 7.5 8.5
Gross Weight kg 8.5 9.5

5
Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit GWH09AAA-K3NNA1A/O GWH12AAB-K3NNA2A/O
Product Code of Outdoor Unit CA115W14400 CA115W14100
Compressor Manufacturer/Trademark ZHUHAI LANDA
COMPRESSOR CO.,LTD
ZHUHAI LANDA
COMPRESSOR CO., LTD
Compressor Model QXA-M094T130 QXA-B120C150A
Compressor Oil RB68EP or equivalent RB68EP
Compressor Type Rotary Rotary
L.R.A. A 18 26
Compressor RLA A 3.6 4.4
Compressor Power Input W 772.7 970
Overload Protector UP3-MC1 INTERNAL (UP3-02)
Throttling Method Capillary Capillary
Operation Temp oC 16~30 16~30
Ambient Temp (Cooling) oC 18~43 18~43
Ambient Temp (Heating) oC -7~24 -7~24
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7.94 Φ7.94
Rows-n Gap mm 1-1.4 1-1.4
Coil Length (LXDXW) mm 658.3X19.05X396 697X19.05X506
Fan Motor Speed rpm 320 850
Output of Fan Motor W 20 35
Fan Motor RLA A 0.25 0.33
Fan Motor Capacitor μF 1.5 2.5
Air Flow Volume of Outdoor Unit m3/h 1200 1600
Fan Type Axial-ow Axial-ow
Fan Diameter mm Φ320 Φ394
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IPX4 IPX4
Permissible Excessive Operating Pressure for
the Discharge Side MPa 4.3 4.3
Permissible Excessive Operating Pressure for
the Suction Side MPa 2.5 2.5
Sound Pressure Level (H/M/L) dB (A) 49/-/- 52/-/-
Sound Power Level (H/M/L) dB (A) 59/-/- 62/-/-
Dimension (WXHXD) mm 720X428X310 776X540X320
Dimension of Carton Box (LXWXH) mm 765X350X475 820X355X580
Dimension of Package (LXWXH) mm 768X353X490 823X358X595
Net Weight kg 24.5 30
Gross Weight kg 26.5 32.5
Refrigerant R410A R410A
Refrigerant Charge kg 0.56 0.72
Connection
Pipe
Length m 5 5
Gas Additional Charge g/m 20 15
Outer Diameter Liquid Pipe mm Φ6Φ6
Outer Diameter Gas Pipe mm Φ9.52 Φ12
Max Distance Height m 10 10
Max Distance Length m 15 15
Note: The connection pipe applies metric diameter.

6Technical Information
Service Manual
2.2 Capacity Curve in Different Outdoor Temperature
2.3 Cooling and Heating Data Sheet in Rated Frequency
Heating
Rated heatling condition(°C)
(DB/WB) Model
Pressure of gas pipe connecting
indoor and outdoor unit
Inlet and outlet pipe temperature
of heat exchanger Fan speed of
indoor unit
Fan speed of
outdoor unit
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
20/- 7/6 All model 3.5~3.8 in:75~85
out:37~43
in:1~3
out:2~5 Super High High
40
50
60
70
80
90
100
110
32 33 34 35 36 37 38 39 40 41 42 43 44 45
Outdoor temp.( ) Outdoor temp.( )
)
%
(
oitaryticapa
C
)%(oitaryticapaC
Condition
Indoor:DB27
°C WB19 °C
°C
°C
Indoor air flow: Super High
Pipe length:5m
157-7 -5 02
24
0
20
40
60
80
100
120
-10510
Condition Heating
Indoor:DB20
°C
Indoor air flow: Super High
Pipe length:5m
Cooling Heating
Rated cooling condition(°C)
(DB/WB) Model
Pressure of gas pipe connecting
indoor and outdoor unit
Inlet and outlet pipe temperature
of heat exchanger Fan speed of
indoor unit
Fan speed of
outdoor unit
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
27/19 35/24 All model 0.85~1.0 in:8~11
out:11~14
in:75~85
out:37~43 Super High High
Cooling
Instruction:
T1: Inlet and outlet pipe temperature of evaporator
T2: Inlet and outlet pipe temperature of condenser
P: Pressure at the side of big valve
Connection pipe length: 5m.

7
Technical Information
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
Unit:mm
Models W H D W1 W2 W3
07/09K(AAA) 698 250 185 93 462 143
09/12K(AAB) 773 250 185 131 462 180
D
H
W
75
35
Φ55
W3W2
W1
Φ55
35
75

8Technical Information
Service Manual
286
255
428
660 310
440
720
3.2 Outdoor Unit
Unit:mm
712
776
510
320
257
682
045
Unit: mm
12K
07/09K

9
Technical Information
Service Manual
4. Refrigerant System Diagram
Cooling and heating model
Connection pipe specication:
Liquid pipe:1/4" (6mm)
Gas pipe:3/8" (9.52mm) 07/09K
Gas : 1/2" (12 mm) 12K
Indoor unit Outdoor unit
Indoor unit Outdoor unit
COOLING
HEATING
Accumlator
4-Way valve
COOLING
Discharge
Suction
Discharge
Suction
Heat
exchanger
(evaporator)
Heat
exchanger
(evaporator) Heat
exchanger
(condenser)
Heat
exchanger
(condenser)
Valve
Valve
Valve
Valve
Liquid pipe
side
Gas pipe
side
Liquid pipe
side
Gas pipe
side
Compressor
Accumlator
Compressor
Strainer
Strainer
Capillary
StrainerCapillary

10 Technical Information
Service Manual
Symbol Symbol Color Symbol Symbol Color Symbol Name
WH White GN Green CAP Jumper cap
YE Yellow BN Brown COMP Compressor
RD Red BU Blue Grounding wire
YEGN Yellow/Green BK Black / /
VT Violet OG Orange / /
5. Electrical Part
5.1 Wiring Diagram
● Indoor Unit
●Instruction
Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model.
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GWH09AAA-K3NNA2A/I GWH09AAB-K3NNA2A/I GWH07AAA-K3NNA1A/I GWH07AAA-K3NNA2A/I
GWH09AAB-K3NNA1A/I

11
Technical Information
Service Manual
63632201
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12 Technical Information
Service Manual
● Outdoor Unit
61413350
6363361501
6
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These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit.
07/09K
12K
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13
Technical Information
Service Manual
5.2 PCB Printed Diagram
● Top view
● Bottom view
1
2
3
4
5
67 89 10 11 12
13
14
15
16
17
18
No. Name
1 Wiring terminal of compressor
2 Terminal of live wire
3Fuse
4Fan capacitor
5Neutral wire terminal of cold
plasma
6 Terminal of neutral wire
7 Wiring terminal of PG motor
8 Live wire terminal for cold plasma
9Wiring terminal of outdoor fan
(heat pump unit)
10 Wiring terminal of 4-way valve
(heat pump unit)
11 Auto button
12 Feedback wiring terminal of PG
motor
13 Wiring terminal of up&down swing
motor
14 Jumper cap
15 Wiring terminal of outer tube
temperature sensor
16 Wiring terminal of indoor unit
temperature sensor
17 Wiring terminal 2 for display
receiving board
18 Wiring terminal 1 of display
receiving board

14 Technical Information
Service Manual
6. Function and Control
6.1 Remote Controller Introduction
Icon Display on Remote Controller
Operation introduction of remote controller
Buttons on Remote Controller
Note:
1
2
5
4
6
7
8
11
12
9
On/Off button
▲/ button
3Fan button
Swing button
X-Fan button
Turbo button
Light button
10
Temp button
I Feel button
Timer button
Sleep button
Mode button
▲
2
5
7
9
4
12
3
1
6
8
10
11
Send signal
Turbo mode
8ćheating function
Set temperature
Set time
TIMER ON /TIMER OFF
Child lock
Up & down swing
Set fan speed
Light function
Temp. display type
:Set temp.
:Outdoor ambient temp.
:Indoor ambient temp.
Sleep mode
Heat mode
Fan mode
Dry mode
Cool mode
Auto mode
Operation mode
I feel function
X-fan mode
health function
ventilation operation
“ ” This is a general remote controller. Some models have this function while some do not. Please refer to the
actual models.
● This is a general use remote controller, it could be used for the air conditioners with multifunction; For some function, wh
ich
the model doesn't have, if press the corresponding button on the remote controller that the unit will keep the original running status.
●After putting through the power, the air conditioner will give out a sound.Operation indictor " " is ON (red indicator). After that,
you can operate the air conditioner by using remote controller
.
● Under on status, pressing the button on the remote controller, the signal icon " "on the display of remote controller wi
ll
blink once and the air conditioner will give out a “de” sound, which means the signal has been sent to the air conditioner
.
● Under off status, set temperature and clock icon will be displayed on the display of remote controller (If timer on, timer off and
light functions are set, the corresponding icons will be displayed on the display of remote controller at the same time); Under on
status, the display will show the corresponding set function icons.

15
Technical Information
Service Manual
1. ON/OFF button
2. MODE button
3. F
AN button
6. SLEEP button
5. SWING button
Press this button to turn on the unit. Press this button again to turn off the unit.
Each time you press this button,a mode is selected in a sequence that goes from AUTO, COOL, DRY, FAN, and HEAT *,
as the following:
AUTO COOL DRY FAN HEAT*
* Note: Only for models with heating function.
This button is used for setting Fan Speed in the sequence that goes from AUTO, , to , then back to Auto.
4.▲ / button
▲
▲Press / button to increase/decreaseset temperature.In AUTO mode,set temperature is not adjustable.
▲
Press this button to set up & down swing angle.
Auto
OFF
▲
▲
▲
▲
(horizontal louvers
stops at current position)
no display
Fan
Fan
Swing
Swing
Swing
Swing
Swing
Fan
Fan

16 Technical Information
Service Manual
7. TEMP button
8. TURBO button
9. I FEEL button
10. Timer button
11. X-FAN button
12. LIGHT button
NOTICE:
Press this button, you can see indoor set temperature, indoor ambient temperature on indoor unit’s display. The setting
on remote controller is selected circularly as below:
no display
Press this button to activate / deactivate the Turbo function.
Press this button to turn on I FEEL function.
Under ON status, press this button to set timer OFF; Under OFF status, press this button to set timer ON.
Turn on the display's light and press this button again to turn off the display's
light.
As for the detailed content of remote controller, please refer to QR code on the cover.
Function introduction for combination buttons
Press " " and " " buttons simultaneously 3s to lock or unlock the keypad. If the remote
pressing any button, blinks three times.
controller is locked, is displayed. In this case,
▲
Combination of ""and " " buttons: About lock
▲
▲
▲
About switch between Fahrenheit and centigradeCombination of "MODE" and " " buttons:
▲
At unit OFF, press "MODE" and " " buttons simultaneously to switch between ć and .
▲
Nixie tube on the remote controller displays
" SE " . Repeat the operation to quit the function.
Combination of "TEMP" and "TIMER" buttons: About Energy-saving Function
Press "TEMP" and "TIMER" simultaneously in COOL mode to start energy-saving function.
(46 if Fahrenheit is adopted). Repeat the operation to quit the function.
Combination of "TEMP" and "TIMER" buttons:
About 8
ć Heating Function
Press "TEMP" and " TIMER " simultaneously in HEAT mode to start 8 ć Heating Function
Nixie tube on the remote controller displays " "
and a selected temperature of
" 8ć " .
(NOTE:X-FAN is the alternative expression of BLOW for the purpose of understanding.)

17
Technical Information
Service Manual
WIFI Function
Press this button to turn on the unit. Press this button again to turn off the unit. Press "MODE" and "TURBO" button simultaneously to
and "TURBO" buttons simultaneously for
10s, remote controller will send WIFI reset code and then the WIFI function will be turned on.
WIFI function is defaulted ON after energization of the remote controller.
turn on or turn off WIFI function. When WIFI function is turned on, the " " icon will be displayed on remote controller
; Long press "MODE"
● This function is only available for some models.
Replacement of batteries in remote controller
Emergency operation
If remote controller is lost or damaged, please use auxiliary button to turn on or turn off the air conditioner.
When the air conditioner is turned on, it will operate under auto mode.
aux. button
panel
WARNING:
Use insulated object to press the auto button
As shown in the fig.Open panel ,press aux.button to turn on or turn off the air conditioner.
The operation in details are as below:
1. Press the back side of remote controller marked
the cover of battery box along the arrow direction.
2. Replace two 7# (AAA 1.5V) dry batteries, and make sure the position of "+" polar and "-" polar
are correct.
3. Reinstall the cover of battery box.
signal senderbattery
Cover of battery box
remove
reinstall