Front Load Washer

Not Filling

Click on the Steps below to jump directly to that section:

Step 1
1
Use Test Mode to determine if issue is water valve not energizing or issue with water supply.
Step 2
2
Check water supply and inlet filters.
Step 3
3
Test water inlet valves.

**NOTICE**

Wiring Colors, Connectors, and Pins will vary by model/product code. Always be sure to download and use the service manual for your specific model.

For Test Mode procedures use this link and input your specific model: https://lgtestmodes.com/

Step 1

Check unit for not filling in test mode.

Activate each valve to see if valves energize and water enters the tub.

If valves energize and no water enters the tub then continue to Step 2.

If valves do not energize in test mode then continue to Step 3.

 

Step 2

Next check the inlet filters

If your inlet filters have not been cleaned recently, buildup could be blocking the flow of water causing the washer to fill slowly. Turn off the water taps and remove the inlet hoses from the machine. Look into the unit’s hot and cold valves and carefully remove the filters. Clean them thoroughly and replace if required. Once the inlet filters have been cleaned and re-installed, restart the load and see if the issue is resolved. 

Is the water supply valve turned on and completely open?
Are the valve screens blocked?
This would also be a good time to test the water pressure supplied to the unit.

Water supply pressure must be between 20 psi and 120 psi (138 – 827). If the water supply pressure is more than 120 psi, a pressure reducing valve must be installed.

Are flood safe hoses being used?
These cannot be used due to the pulsing operation of the water valves.
Only the standard supplied hoses should be used.

Step 3

Test water inlet valves

1 Unplug the unit.

Check the harness connections at the water valves and at the Main PCB.

2 Disconnect the harness connections from the water valves. Test the resistance of each valve. Resistance should be approximately 800-1200Ω, for 120volt AC valves and 26-28Ω  for DC valves *If an open is read, replace the valve.*

3 Plug in the unit and activate test mode to cycle through all water valves.

Voltage should read 120Vac, (Or 12v for DC models).
If no voltage is read, check voltage at the Main PCB.
If no voltage is present at the Main PCB, replace the Main PCB.
If voltage is present, suspect a wiring harness issue.

4 If the valves are working in test mode, does the water level frequency decrease as water comes into the tub?

If not, inspect the pressure sensor hose and air chamber for a crack or blockage, Pressure Switch should have approximately 21Ω across the two outside pins.