GRH085DA-K3NA1A-I Slimline RV Air Conditioner
Product Information: This product is a cooling system that
requires installation and maintenance. It comes with a service
manual that provides troubleshooting instructions for different
malfunctions. The manual also includes an exploded view and parts
list for the indoor unit. The product is designed to cool the air
by exchanging heat and removing blockages. It has various
components such as front panel assembly, air louvers, filters,
temperature sensors, electric box, motor assemblies, remote
controller, and more. Product Usage Instructions: 1.
Malfunction of Insufficient fluorine protection F0: – Check if the
heat exchangers are dirty or if the air inlet/outlet is blocked. –
If yes, clean the heat exchangers and remove blockages from the air
inlet/outlet. – If no, check if the compressor is working normally
and if there are any strange noises or leakage. Also, check if the
casing is too hot. – If yes, make the compressor run normally. – If
no, check for blockages inside the system such as dirt block, ice
block, oil block, or Y-valve not fully open. – If yes, remove the
blockage in the system. – If no, check if the refrigerant is
leaking. If it is leaking, replace the main board with the same
model. Otherwise, check the leaking status of refrigerant and
charge refrigerant. – Once the malfunction is eliminated, the
product should work properly. 2. Overload malfunction H3: – Check
if the heat exchangers are dirty or if the air inlet/outlet is
blocked. – If yes, clean the heat exchangers and remove blockages
from the air inlet/outlet. – If no, check if the fan motor is
working at a normal fan speed and if the fan runs properly. – If
yes, check the motor and re-install it to make it run normally. –
If no, check if the compressor is working normally and if there are
any strange noises or leakage. Also, check if the casing is too
hot. – If yes, make the compressor run normally. – If no, check for
blockages inside the system such as dirt block, ice block, oil
block, or Y-valve not fully open. – If yes, remove the blockage in
the system. – If no, check if the refrigerant is leaking and
causing overheating protection to the compressor. – If yes, replace
the main board with the same model. Otherwise, check the leaking
status of refrigerant and charge refrigerant. – Once the
malfunction is eliminated, the product should work properly. 3.
Overload malfunction PL Start: – Check if the power supply voltage
is lower than 184V. – If yes, cut off the power and confirm the
supply power is not lower than 184V. After that, put through the
power again. – If the malfunction is eliminated, the product should
work properly. – If no, replace the main board. Please note that
the above instructions are based on the information provided in the
user manual. It is always recommended to consult the manual for
specific instructions related to your product model.
Service Manual
4. Malfunction of Insufficient fluorine protection F0
Troubleshooting for F0 malfunction
Heat exchangers are too dirty or the air inlet/outlet
is blocked.
No
Compressor doesn’t work normally. Strange noise or leakage occurs.
Casing is too hot.
No
Yes
Clean the heat exchangers and remove
blockage of air inlet/outlet.
No
Yes
Make compressor run normally.
No
System is blocked inside (dirt block, ice block, oil block, Y-valve no
fully open).
Yes
Remove blockage in the system
No
No
The refrigerant is leaking
No
Replace a main board with the same model.
Yes
Check the leaking status of refrigerant and charge refrigerant
No
Malfunction is eliminated.
Yes
Malfunction is eliminated.
Yes
Malfunction is eliminated.
Yes
Malfunction is eliminated.
Yes
End
Installation and Maintenance
39
Service Manual
5. Overload malfunction H3
Troubleshooting for H3 malfunction
Heat exchangers are too dirty or the air inlet/outlet
is blocked.
No
Yes
Clean the heat exchangers and remove
blockage of air inlet/outlet.
No
Fan motor doesnt work at a normal fan speed; fan speed is
too low or the fan doesnt run
Yes
Check motor and re-install the moto to make it run normally.
No
Compressor doesn’t work
normally. Strange noise or leakage occurs.
Yes
Casing is too hot.
No
No Make compressor run normally.
No
System is blocked inside (dirt block, ice block, oil block, Y-valve no
fully open).
Yes
Remove blockage in the system.
No
No
The refrigerant is leaking and cause overheating protection to
compressor.
No
Replace a main board with the same model.
Yes Check the leaking status of refrigerant and charge refrigerant.
No
Malfunction is eliminated.
Yes
Malfunction is eliminated.
Yes
Malfunction is eliminated.
Yes
Malfunction is eliminated.
Yes
Malfunction is
Yes
eliminated.
End
40
Installation and Maintenance
Service Manual 6. Overload malfunction PL Start
Check whether the
power supply voltage is lower
no
than 184V?
yes
Cut off the power and confirm the supply power
is not lower than 184V. After that, put through
the power again.
Is the malfunction eliminated?
yes
End
no
Replace the main board
Installation and Maintenance
41
10. Exploded View and Parts List
10.1 Indoor Unit
GRH085DA-K3NA1A/I GRH120DA-K3NA1A/I
Service Manual
The component picture is only for reference; please refer to the actual product. 42
Installation and Maintenance
Service Manual
Description NO.
Product Code
1
Front Panel Assy
2
Guide Blade
3
Air Louver
4
Axile Bush
5
Axile Bush
6
Filter Guide
7
Swivel Switch
8
Air Intake Cover Sub-assy 1
9
Display Board
10 Cover Plate
11 Display box Sub-Assy
12 Detecting Plate
13 Temperature Sensor
14 Bolt
15 Mounting Plate Assy
16 Press plate of air vent
17 Electric Box Assy
18 Insulation Gasket
19 Terminal Board
20 Wire Clamp
21 Electric Box Cover
22 Louver Motor Assy
23 Air Intake Cover Sub-assy 2
24 Filter Sub-assy(Right)
25 Baffle Plate Sub-assy 26 Filter Sub-assy(Left)
27 Baffle Plate 2 28 Guide Louver
29 Display cover plate (LED)
30 Display Board
31 SteppingMotor
32 Motor Mounting Rack
33 Sponge (Air Flue)
34 Remote Controller
35 Remote Controll Holder
36 Screw Cover
Above data is subject to change without notice.
Part Code GRH085DA-K3NA1A/I(WIFI) GRH120DA-K3NA1A/I(WIFI) Qty
CU050N00901
CU050N01001
000003000047
000003000047
1
10512269
10512269
1
10512270
10512270
2
10542704
10542704
2
10542037
10542037
1
24242020
24242020
4
45052001
45052001
1
22242206
22242206
1
30562094
30562094
1
200050000003
200050000003
1
20302633
20302633
1
30110154
30110154
1
390001997
390001997
1
7021201701
7021201701
4
01332030
01332030
1
01383008
01383008
1
20402472
20402472
1
70410503
70410503
2
42018094
42018094
1
71010103
71010103
2
1252034
1252034
1
15002018
15002018
2
22242207
22242207
1
11122149
11122149
1
01362019
01362019
2
11122148
11122148
1
01362020
01362020
2
10512489
10512489
2
200128000006
200128000006
1
30562095
30562095
1
1521210702
1521210702
1
01332027
01332027
1
12123237
12123237
1
305001000034
305001000034
1
20120041
20120041
1
760042000002
760042000002
6
Installation and Maintenance
43
GRH085DA-K3NA2B/I GRH120DA-K3NA2B/I
1 2 3
4 5
6 7 8 9
Service Manual
20 19 18 17 16 15 14
10
11
12
13
The component picture is only for reference; please refer to the actual product.
44
Installation and Maintenance
Service Manual
Description NO.
Product Code
1
Foam
2
Air Duct Sub-assy
3
Air Outlet Mid-panel
4
Base Plate
5
Display Module
6
Air Outlet Frame Sub-assy
7
Shaft of Guide Louver
8
Guide Louver
9
Air Outlet Frame
10 Front Panel Sub-Assy
11 Front Panel
12 Latch
13 Magnet Sub-assy
14 Front Grill
15 Healthy Filter
16 Display Board
17 Display Box
18 Display Box Cover
19 Detecting Plate
20 Temperature Sensor
Above data is subject to change without notice.
Part Code
GRH085DA-K3NA2B/I
GRH120DA-K3NA2B/I
Qty
CU050N01100
CU050N01200
120000060016
120000060016
1
017107060006
017107060006
1
200120060001
200120060001
1
200008060001
200008060001
1
340148060004
340148060004
1
000117060003
00011706000301
2
1054601501
10546015
4
200004060013P
20000406001301
2
200095060002P
20009506000201
2
209004060013
209004060013
1
200003060015T
200003060015T
1
70811002
70811002
4
70844010
70844010
4
200226060009
200226060009
2
111008060002
111008060002
2
300001060004
300001060004
1
200028060003
200028060003
1
200097060003
200097060003
1
30110144
30110144
1
390001997
390001997
1
Installation and Maintenance
45
10.2 Outdoor Unit
GRH085DA-K3NA1A/O GRH120DA-K3NA1A/O
Service Manual
The component picture is only for reference; please refer to the actual product. 46
Installation and Maintenance
Service Manual
Description NO.
Product Code
1
Plastic box (electric box)
2
Electric Box Cover
3
Temperature Sensor
4
Main Board
5
Supporter
6
Capacitor Box
7
Capacitor CBB65
8
Electric Box Assy
9
4-Way Valve Assy
10 Capillary Sub-Assy
11 Centrifugal Blower sub-assy
12 Evaporator Assy
13 Foam Sub-Assy
14 Power Cord
15 Connecting Cable
16 Chassis Assy
17 Wire Clamp
18 Rubber Block
19 Compressor Gasket
20 Compressor and Fittings
21 Nut with Washer
22 Centrifugal fan assy
23 Centrifugal Blower sub-assy
24 Condenser Assy
25 Rear Clapboard
26 Fastener
27 Breakwater Sub-Assy
28 Cabinet
Above data is subject to change without notice.
Part Code
GRH085DA-K3NA1A/O(WIFI) GRH120DA-K3NA1A/O(WIFI) Qty
CU050W00901
CU050W01001
500026000001
500026000001
1
012020000023
012020000023
1
3900040301
3900040301
1
30132227
30132227
1
200114000006
200114000006
1
20116069
20116069
1
3300008102
3300008102
1
100002000167
100002000167
1
030152000101
030152000101
1
030006000142
030006000142
1
150108000005
150108000005
1
011001000075
011001000075
1
120011000003
120011000003
1
4002028908
4002028908
1
4002050422
4002050422
1
209058000010
209058000010
1
71010103
71010103
1
760005000003
760005000003
2
009012000005
009012000005
4
00106113
00106113
1
70310014
70310014
4
000052000021
000052000021
2
150109000002
150109000002
1
011002000132
011002000132
1
200030000001
200030000001
1
200108000003
200108000003
8
017061000002
017061000002
1
200173000001S
200173000001S
1
Installation and Maintenance
47
GRH085DA-K3NA2B/O GRH120DA-K3NA2B/O
21 3 4 5 6 7 8 9 10
Service Manual
29 28 27 26 25
24 23 22 21 20 19 18 17 16
11
12 13 14
15
The component picture is only for reference; please refer to the actual product.
48
Installation and Maintenance
