Haier HLP21N washer won't fill. Water runs right through from the faucet to the drain hose.

Question edited for clarity.

My guess is that your drain hose is too high. The pump is in the base of the washer and pushes the water up the tube and into the drain/ when the pump stops, the residual water in the hose drops back into the base of the machine, so the higher the hose, the greater the column of water.

https://www.manualslib.com/manual/837407/Haier-Hlp21n.html?page=10#manual

Or

The Drain Pump is blocked or failing.

..

Its a common error,
Error message:Drain error, water can be not drained fully within the required drain time
Reason 1. Pump filter is blocked.
Solution 1. Please open and clean the pump filter. (Filter access door is on the bottom right, at floor level of the washing machine)
Step 1.Push a flat blade screwdriver into the slot on the filter cover and pull it open ,do not use excessive force.(Fig 1).
Step 2.Remove the rubber hose from its clip and stand a suitable container under it, remove the bung to drain the water (Fig 2-3)
Step 3.Replace the bung and fit it back into its clip (Fig 4-5).
Step 4. Unscrew the filter and rinse it under running water, replace it and close the flap(Fig 6-7-8).
Caution:
1. The filter must be in place during operation, ensure it is in place after cleaning to avoid leakage.
2.Place a container under the drain pump filter, to collect any excess water that may come out of the drain pump when the filter is removed.

Reason 2. Drain hose end is higher than 100cm above the floor level.
Solution 2. Please adjust the height of drain hose to 80-100cm above the floor.

Reason 3. Drain hose is blocked or twisted.
Solution 3. Please check and clean the drain hose for blockage.

Reason 4. Drain hose is too long, or water is back filling from waste water pipes.
Solution 4. Remove any extension to the original drain hose.
Ensure the highest part of the drain hose is nearest the washing machine.Check the waste water pipes in the building are clear of any obstructions and flow freely.

check / replace the start run capacitor for the motor
have a electrician do it or a service technician if you do not recognize it
it is normally up near the control panel

main suspects are lid switch or fill level gage lid switch

pressure sensor switch

This washer is a sanyo on the inside. When panasonic bought out sanyo and all its daughter brands, they started making parts not available for repairs. The service manual is here---> https://panasonic.encompass.com/shop/research_new/HAI/sm/HLP21N.pdf

Good luck!
This is also known as a sears proflex among other names....

Did you ever figure out the problem? Mine does the same thing. Just immediately drains and then nothing happens.

Is the discharge hose higher than the machine? If it is Lower it will never fill. Don't think there is a shut off in the hose to stop the water discharge.

ihe clutch is not grabing in1 needs replacing clutch assembly.

No need to worry, you can get a new inlet hose & drain hose of any length at any major hardware store. I have the larger Haier outside my kitchen & got a 10' drain hose & inlet hoses & this same situation was instantly solved...
Howard

If the washer doesn't fill properly, or if only one temperature of water fills the tub, something is probably keeping water from entering the machine or it's draining before the tub fills completely. Set the controls to the first wash cycle, and then try each water temperature setting. If both hot and cold water seem to be entering the washer with good pressure, water may be draining out prematurely during the fill cycle, through siphoning action. Be sure the drain hose's connection to the standpipe is at least 34 inches above the floor (otherwise, discuss the problem with a plumber). An air gap between drain hose and stand pipe that prevents backflow is also good to have. If hot works but cold doesn't, or vice versa: 1) Be sure both the hot and cold water faucets are turned on. 2) Be sure the supply hoses are not kinked. 3) Turn off the faucets. Unscrew the hoses from the faucets and drain them into a bucket. Hold the bucket under the faucets and test them to make sure they both work and have plenty of pressure (see HERE for information on replacing faucets). Screw the hoses back onto the faucets. 4) Unscrew the hoses from the inlet valves and clean the filter screens just inside them; these may be clogged. To do this, pry out the screens with a screwdriver (this can be difficult; the screens may be inside the valves), flush them under running water, then put them back into the hose. If the screens look defective, replace them. Then screw the hoses back onto the valves. Be careful not to cross-thread the hose threads when screwing them back onto the valves. 5) Call an appliance repairperson; there may be a defective inlet valve or a problem with the controls.