Video & Articles: Appliance & Equipment RepairLG Dishwasher Pump/Motor Assembly Replacement #AJH31248604

LG Dishwasher Pump/Motor Assembly Replacement #AJH31248604

08:52
This video provides step-by-step repair instructions for replacing the pump and motor assembly on an LG dishwasher. The most common reasons for replacing the pump and motor assembly are when the dishwasher doesn't clean, is leaking from the motor area, is making noise, or not draining.

All of the information for this pump and motor assembly replacement video is applicable to the following brands:
LG

Step By Step Instructions

1
To replace the pump and motor assembly, you will need to uninstall the dishwasher first.
2
To do this, turn off the power to your dishwasher
3
Shut off the water supply valve.
4
Next, remove the screws to release the lower access panel.
5
Pull out the outer sound dampening pad.
6
Disconnect the water supply line from the inlet valve.
7
Be prepared for some water to spill out.
8
Remove the screw to release the junction box cover.
9
Note the location of the wires then untwist the wire nuts to disconnect the wires.
10
Use a flathead screwdriver to help remove the strain relief nut and detach the strain relief from the junction box.
11
Next, disconnect the drain hose from the sink or garbage disposer and feed it through the cabinet.
12
Open the dishwasher door and remove the mounting bracket screws.
13
To move the dishwasher, you may need to adjust the legs to lower the appliance.
14
You can adjust the rear leveling legs by turning the shaft assembly screws at the front.
15
Now, to avoid damage, very carefully pull the dishwasher away from the cabinet.
16
Open the door and remove both the upper and lower dish racks.
17
Next, hold both ends of the lower wash arm and pull the assembly out.
18
This may require some effort.
19
Remove the screw to release the water guide retaining clip.
20
Now detach the water guide from the upper and rear mounting brackets then rotate the guide to remove it from the filter assembly.
21
Close the door and carefully tip the dishwasher back so its rear panel rests on a blanket or towel.
22
Remove the screws securing the bottom access plate and pull the plate free.
23
Next, use pliers to release the clamps securing the overflow, vent and drain hoses and pull the hoses off.
24
Note the orientation of all of the wire connecters and disconnect them from the pump and motor assembly.
25
Remove the screws to release the motor grounding wires.
26
Use a long phillips-head screwdriver to remove the screws to release the sump holders.
27
Carefully return the dishwasher to its upright position.
28
Reach under the dishwasher and push in the tabs securing the pump and motor assembly while it lifting up.
29
You can now open the dishwasher door and pull out the old assembly.
30
You’re now ready to install the new pump and motor assembly.
31
Make sure the sump gasket is firmly in place and position the new assembly in the dishwasher by aligning the two arrows.
32
Once aligned, snap the assembly into place.
33
Again, close the door and tip the dishwasher back.
34
Position the sump holders and secure them with the screws.
35
Replace the motor grounding wires and secure the screws.
36
Connect the wire connecters to the new assembly.
37
Slide the overflow, vent and drain hoses onto the appropriate ports and secure them with the clamps.
38
Replace the bottom access plate and secure it with the screws.
39
Return the dishwasher to its upright position.
40
Open the door and insert the water guide into the filter assembly.
41
Rotate to secure.
42
Snap the water guide into the two mounting brackets and replace the retaining clip.
43
Replace the lower wash arm by aligning it on the filter assembly and pushing firmly into place.
44
Make sure the arm spins freely and replace both the upper and lower dish racks.
45
You’re now ready to reinstall the dishwasher.
46
Make sure the end of the drain hose is accessible through the cabinet wall.
47
Lift the right side of the dishwasher up and support it with a wood block or a comparable sturdy object.
48
Guide the electrical supply line under the appliance so its wires are accessible through the hole in the junction box.
49
Now remove the support and gently slide the dishwasher back into the cabinet.
50
Adjust the leveling legs if necessary.
51
Replace the screws to secure the mounting brackets to the cabinet or countertop.
52
Feed the drain hose through the cabinet and connect it to the sink drain or disposer.
53
Make sure the hose is elevated above the connection point.
54
Fully position the wire strain relief in the junction box and secure the strain relief nut.
55
Connect the wires using the wire nuts.
56
Align the cover plate and replace the screw to secure.
57
Reconnect the water supply line to the inlet valve.
58
Replace the sound dampening pad.
59
Replace the lower access panel and secure it with the screws.
60
You’re now ready to turn the water supply back on as well as the power and confirm that the dishwasher is functioning properly.
Description
This video provides step-by-step repair instructions for replacing the pump and motor assembly on an LG dishwasher. The most common reasons for replacing the pump and motor assembly are when the dishwasher doesn't clean, is leaking from the motor area, is making noise, or not draining.

All of the information for this pump and motor assembly replacement video is applicable to the following brands:
LG
Step-By-Step Instructions
1
To replace the pump and motor assembly, you will need to uninstall the dishwasher first.
2
To do this, turn off the power to your dishwasher
3
Shut off the water supply valve.
4
Next, remove the screws to release the lower access panel.
5
Pull out the outer sound dampening pad.
6
Disconnect the water supply line from the inlet valve.
7
Be prepared for some water to spill out.
8
Remove the screw to release the junction box cover.
9
Note the location of the wires then untwist the wire nuts to disconnect the wires.
10
Use a flathead screwdriver to help remove the strain relief nut and detach the strain relief from the junction box.
11
Next, disconnect the drain hose from the sink or garbage disposer and feed it through the cabinet.
12
Open the dishwasher door and remove the mounting bracket screws.
13
To move the dishwasher, you may need to adjust the legs to lower the appliance.
14
You can adjust the rear leveling legs by turning the shaft assembly screws at the front.
15
Now, to avoid damage, very carefully pull the dishwasher away from the cabinet.
16
Open the door and remove both the upper and lower dish racks.
17
Next, hold both ends of the lower wash arm and pull the assembly out.
18
This may require some effort.
19
Remove the screw to release the water guide retaining clip.
20
Now detach the water guide from the upper and rear mounting brackets then rotate the guide to remove it from the filter assembly.
21
Close the door and carefully tip the dishwasher back so its rear panel rests on a blanket or towel.
22
Remove the screws securing the bottom access plate and pull the plate free.
23
Next, use pliers to release the clamps securing the overflow, vent and drain hoses and pull the hoses off.
24
Note the orientation of all of the wire connecters and disconnect them from the pump and motor assembly.
25
Remove the screws to release the motor grounding wires.
26
Use a long phillips-head screwdriver to remove the screws to release the sump holders.
27
Carefully return the dishwasher to its upright position.
28
Reach under the dishwasher and push in the tabs securing the pump and motor assembly while it lifting up.
29
You can now open the dishwasher door and pull out the old assembly.
30
You’re now ready to install the new pump and motor assembly.
31
Make sure the sump gasket is firmly in place and position the new assembly in the dishwasher by aligning the two arrows.
32
Once aligned, snap the assembly into place.
33
Again, close the door and tip the dishwasher back.
34
Position the sump holders and secure them with the screws.
35
Replace the motor grounding wires and secure the screws.
36
Connect the wire connecters to the new assembly.
37
Slide the overflow, vent and drain hoses onto the appropriate ports and secure them with the clamps.
38
Replace the bottom access plate and secure it with the screws.
39
Return the dishwasher to its upright position.
40
Open the door and insert the water guide into the filter assembly.
41
Rotate to secure.
42
Snap the water guide into the two mounting brackets and replace the retaining clip.
43
Replace the lower wash arm by aligning it on the filter assembly and pushing firmly into place.
44
Make sure the arm spins freely and replace both the upper and lower dish racks.
45
You’re now ready to reinstall the dishwasher.
46
Make sure the end of the drain hose is accessible through the cabinet wall.
47
Lift the right side of the dishwasher up and support it with a wood block or a comparable sturdy object.
48
Guide the electrical supply line under the appliance so its wires are accessible through the hole in the junction box.
49
Now remove the support and gently slide the dishwasher back into the cabinet.
50
Adjust the leveling legs if necessary.
51
Replace the screws to secure the mounting brackets to the cabinet or countertop.
52
Feed the drain hose through the cabinet and connect it to the sink drain or disposer.
53
Make sure the hose is elevated above the connection point.
54
Fully position the wire strain relief in the junction box and secure the strain relief nut.
55
Connect the wires using the wire nuts.
56
Align the cover plate and replace the screw to secure.
57
Reconnect the water supply line to the inlet valve.
58
Replace the sound dampening pad.
59
Replace the lower access panel and secure it with the screws.
60
You’re now ready to turn the water supply back on as well as the power and confirm that the dishwasher is functioning properly.

Applicable Product Model

icons/dishwasher
Brand
Product Type
Model
Subtype
Recommended Tools and Accessories
Cleaner
Cleaner
$9.80
Total$0.00

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