Price Match Guarantee
In-stock parts ship the same day
365-Day Return Policy
Price Match GuaranteeGET PRO PRICING
Video & Articles: Appliance & Equipment RepairLG Air Conditioner Main Control Board Replacement EBR83968401 
LG Air Conditioner Main Control Board Replacement EBR83968401
Skill Level
Total Parts Cost
$380.91Estimated Savings
$112.5007:47
- Description
This video provides step-by-step instructions for replacing the main control board on an LG Air Conditioner. The most common reason for replacing this part is if the AC unit will not power on or cool.
All of the information in this video is applicable to the following brands: LG
All of the information in this video is applicable to the following brands: LG
Step By Step Instructions
1
To replace the main control board in this lg built-in air conditioner…
2
… you will need a phillips-head screwdriver and a small flat-head screwdriver.
3
Before you begin the procedure, unplug the unit’s power cord.
4
Remove the inlet cover by detaching it from the top first.
5
Pull the air filter up and out.
6
Use the phillips-head screwdriver to unthread the two mounting screws securing the front grille assembly.
7
Pull the assembly out from the bottom then lift up to detach.
8
Disconnect the wire connecter to fully remove the assembly.
9
If required, use the phillips-head screwdriver to unthread the two rear mounting screws securing the unit to its cabinet.
10
Unthread the two front screws located on the left and right sides of the cabinet near the bottom.
11
Now have an assistant help you to fully remove the unit from the cabinet…
12
… and set it on a towel or blanket.
13
Using the phillips-head screwdriver, unthread the four screws securing the support bracket.
14
Set the bracket aside.
15
Unthread the screw securing the control board housing cover.
16
Lift off the cover…
17
… then use the small flat-head screwdriver to help detach the control board frame from the housing.
18
You can now unthread the four corner screws securing the board.
19
Rotate the control board and frame out of the housing.
20
You can now use a smart phone to take a photo of the wire orientation on the board.
21
Disconnect all twelve wire connecters to fully release the old board.
22
To install the new main control board…
23
… align it in the frame, then…
24
… connect all twelve wire connecters to the appropriate terminals.
25
Position the control board and frame in the housing and snap the frame into place.
26
Thread the four screws to secure the board.
27
Realign the housing cover…
28
… and secure it with the screw.
29
Reposition the support bracket…
30
… and thread the screws to secure.
31
Now slide the air conditioning unit back into the cabinet.
32
Rethread the front screws on the left and right sides to secure.
33
Securing the unit with the rear cabinet screws is optional.
34
Reinstall the front grille assembly by first connecting the wire connecter.
35
Make sure the vent lever is accessible just below the horizontal louver as you insert the upper tabs into the slots in the frame, then position and snap the sides of the grille into place.
36
Rethread the two mounting screws to secure.
37
Realign the air filter by positioning the bottom edge first then snap the top of the filter into place.
38
Align the inlet cover hinge tabs with the slots in the grille assembly then snap the top portion of the cover into position.
39
Plug the power cord back in…
40
… and the air conditioner should be ready for use.
Description
This video provides step-by-step instructions for replacing the main control board on an LG Air Conditioner. The most common reason for replacing this part is if the AC unit will not power on or cool.
All of the information in this video is applicable to the following brands: LG
All of the information in this video is applicable to the following brands: LG
Step-By-Step Instructions
1
To replace the main control board in this lg built-in air conditioner…
2
… you will need a phillips-head screwdriver and a small flat-head screwdriver.
3
Before you begin the procedure, unplug the unit’s power cord.
4
Remove the inlet cover by detaching it from the top first.
5
Pull the air filter up and out.
6
Use the phillips-head screwdriver to unthread the two mounting screws securing the front grille assembly.
7
Pull the assembly out from the bottom then lift up to detach.
8
Disconnect the wire connecter to fully remove the assembly.
9
If required, use the phillips-head screwdriver to unthread the two rear mounting screws securing the unit to its cabinet.
10
Unthread the two front screws located on the left and right sides of the cabinet near the bottom.
11
Now have an assistant help you to fully remove the unit from the cabinet…
12
… and set it on a towel or blanket.
13
Using the phillips-head screwdriver, unthread the four screws securing the support bracket.
14
Set the bracket aside.
15
Unthread the screw securing the control board housing cover.
16
Lift off the cover…
17
… then use the small flat-head screwdriver to help detach the control board frame from the housing.
18
You can now unthread the four corner screws securing the board.
19
Rotate the control board and frame out of the housing.
20
You can now use a smart phone to take a photo of the wire orientation on the board.
21
Disconnect all twelve wire connecters to fully release the old board.
22
To install the new main control board…
23
… align it in the frame, then…
24
… connect all twelve wire connecters to the appropriate terminals.
25
Position the control board and frame in the housing and snap the frame into place.
26
Thread the four screws to secure the board.
27
Realign the housing cover…
28
… and secure it with the screw.
29
Reposition the support bracket…
30
… and thread the screws to secure.
31
Now slide the air conditioning unit back into the cabinet.
32
Rethread the front screws on the left and right sides to secure.
33
Securing the unit with the rear cabinet screws is optional.
34
Reinstall the front grille assembly by first connecting the wire connecter.
35
Make sure the vent lever is accessible just below the horizontal louver as you insert the upper tabs into the slots in the frame, then position and snap the sides of the grille into place.
36
Rethread the two mounting screws to secure.
37
Realign the air filter by positioning the bottom edge first then snap the top of the filter into place.
38
Align the inlet cover hinge tabs with the slots in the grille assembly then snap the top portion of the cover into position.
39
Plug the power cord back in…
40
… and the air conditioner should be ready for use.
Applicable Product Model
Parts Needed
Control Board
$380.91
Total$0.00
Related Articles & Videos
03:47
Part Replacement
LG Air Conditioner Vertical Louver Fin with Lever Replacement MFH63483702
Our Story
Family-owned and operated since 1912, Burke America Parts Group is the longest-running genuine appliance, HVAC, and outdoor power equipment parts solution in North America. At Repair Clinic, we're proud to be an international brand trusted by the pros as well as the DIY community.
About Repair Clinic
© 2026 RepairClinic.com