I changed the 6 volt battery when i connect the battery leads and used machine i press clear/pause button it will start again. I have to disconnect the battery to turn it off

In the installation manual for this model ... pages 10-12 ... (see link below) there is an explanation that might help you clear the F20. After I did some searching ... there appears to be no physical pause and cancel buttons on your machine. You have to go in to control set up by pressing existing buttons in a certain order. I admit it is confusing

Whirlpool 3LCHW9100WQ Installation Instructions Manual Complete...

The best I could tell ... press the "WOOLENS" button enough times to get to code 6 ... then press the "DELICATES/KNITS" button for at least 1 second ... which takes you to diagnostics.
If the F20 code does not clear, then the problem still exists and a whole bunch of things can cause the "slow fill" problem.
Helpful?
Good luck on your troubleshooting!

some others

new model pacific 1002mk2 (ASDA) using remote.;
press open on remote
press clear
press 1-3-6-9 Then 0(for multiregion)

Press close

It's important to note that you will not see anything happen on screen or display!
The buttons are small,so you'll have to be precise

1. PUT A REGION 2 DISC IN PLAYER

2. WHEN IT IS LOADING UP PRESS "SETUP"

3. PRESS "7" FOR MULTI REGION

4. PRESS "PAUSE/STEP"

5. PRESS PREVIOUS " |> "

6. PRESS SETUP

YOUR PLAYER IS NOW MULTI REGIONAL.. IS YOU WANT TO SET THE REGION IN STEP 3 PRESS 1 FOR USA OR WHATEVER YOU REQUIRE....

or

switch on.on the remote press "open/close",0,1,2,3,open/close and it plays straigt away. but nothing is shown on the screen.
or
It's true - a quality DVD player from Asda for £59.95. Highly recommended. This 1359 hack worked with my Pacific 1002 purchased March 03.
Note. There is no on screen display or any indication on the machine when entering the hack.

Switch machine on and using the remote control only:
1. Press 'open/close' button (the draw should be left open).
2. Press the 'clear' button.
3. Press '1'.
4. Press '3'.
5. Press '6'.
6 Press '9'.
7. Press '0' (zero for multi-region).
8. Press 'open/close' button.
End.

or

1. switch on dvd with remote (leave drawer closed)
2. Press: setup
3. press: 7 (note nothing will happen)
4. press: pause/setup button (again nothing will happen)
5. press: previous/I<< button (nothing will happen)
6. press: Next/>>I button (nothing will happen)
7. press: setup

it does not sound like a battery problem from the info provided. It sounds like your battery terminal post is not connecting at the battery. A cable may have a bad connector end on it and the car runs on the alternator once started. Buy a ten dollar volt/ohm meter and check the ohms resistance in the cables by removing the cables from the battery first and then connecting the test leads to the ends of each cable. The meter should read the same as if the leads we're connected to each other. To test the battery change the ohm meter setting to read volts DC in the 20 to 50 volt range and connect red to positive ( + ) side of battery and black lead to negative side ( - ) of battery. Battery must read more than 11 volts for most modern cars to engage the starter circuit, most working batteries will show more than twelve volts. Jump Start the vehicle with the battery connected and with the booster battery disconnected again test the voltage and it should read 14.5 to 15.5 volts. you may need to replace one or both cables or have the ends at the battery replaced. obviously the cables that run the starter are good or a booster battery would not work either. good bluck.

My EWD1477 was doing this a year ago and I fixed it. Then it started doing it again a month ago and I seem to have cleared it again.

Firstly, remove the drain hose from where it is inserted into a laundry sink hole to make sure it is not blocked or sealed in with sludge.

Secondly, make sure the machine is empty of water and clothes and then turn the machine to off with the Program Selector Dial. Then turn off the power at the socket and remove the power plug and leave for five minutes.

Step 1: put the plug back in and turn the power back on.

Step 2: turn the selector switch to the right (Whites/Intensive). The green light of the Start/Pause button should be flashing and the green lights on for Prewash/wash, Rinses and Spinning. Don't press any other buttons or change any other settings.

Step 3: press the Start/Pause button and wait for the machine to empty any excess water. Press it again immediately after you hear water flowing into the machine OR two audible clicks. The machine is now in pause mode with the green light of the Start/Pause button flashing. Only the green light on the Prewash/Wash button should be on. Leave it in pause mode for 30 minutes and then press the Start/Pause button to recommence the cycle.

Step 4: If the Start/Pause button begins flashing, water stops flowing into the machine and the three green lights mentioned above are back on, turn the Program Selector Dial back to off, wait 10 seconds, and repeat the process above.

Step 5: If when you then turn the Program Selector Dial to Whites/Intensive and hear the two audible clicks, immediately press the Start/Pause button to set the machine in pause mode. Wait 30 minutes. Then press the Start/Pause button to recommence the cycle.

Hopefully the cycle will run without a problem.

To clear the Memory of the Walkman Player, try formatting it with the Menu items.
The Steps to format the Player is, 1. Press and hold the BACK/HOME button in the pause mode until the Home Menu appears. 2. Press arrow keys to select "SETTINGS" and press the Playback/Pause button to confirm. 3. Press arrow keys to select "COMMON SETTINGS" and press the Playback/Pause button to confirm. 4. Press arrow keys to select "FORMAT" and press the Playback/Pause button to confirm. 5. Press Up/Down arrow keys to select "YES" and press the Playback/Pause button to confirm. "All Data will be deleted" Proceed? message appears on the display. 6. Again, press Up/Down arrow keys to select "YES" and press the Playback/Pause button to confirm. Now, Memory formatted message will be displayed.

I hope you find this information useful. Thanks,
Pradeep

Press the pause cancel button 2 times this should clear it. If it does not and the filter and drain hose are clear you will need to replace the pump.

F21 Fault Code Repair

LONG DRAIN
If the drain time exceeds 8 minutes the water valves turn off.
NOTES:
After 4 minutes the "Sd" error will be displayed, then 4 minutes later the "F/21" error code will be displayed.
Press PAUSE/CANCEL two times to clear the display.

LONG DRAIN
If the drain time exceeds 8 minutes the water valves turn off.
NOTES:
After 4 minutes the "Sd" error will be displayed, then 4 minutes later the "F/21" error code will be displayed.
Press PAUSE/CANCEL two times to clear the display.

1. Check the drain hose and make sure it is not plugged or kinked.
2. Unplug washer or disconnect power.
3. Check the electrical connections at the pump and make sure the pump is running.
4. Check the drain pump filter for foreign objects.
5. Plug in washer or reconnect power.
6. If the above does not correct the problem, go to step 7.
7. Unplug washer or disconnect power.
8. Replace the pump.

LONG DRAIN
If the drain time exceeds 8 minutes the water valves turn off.
NOTES:
After 4 minutes the "Sd" error will be displayed, then 4 minutes later the "F/21" error code will be displayed.
Press PAUSE/CANCEL two times to clear the display.

1. Check the drain hose and make sure it is not plugged or kinked.
2. Unplug washer or disconnect power.
3. Check the electrical connections at the pump and make sure the pump is running.
4. Check the drain pump filter for foreign objects.
5. Plug in washer or reconnect power.
6. If the above does not correct the problem, go to step 7.
7. Unplug washer or disconnect power.
8. Replace the pump.

Looking at the manual of my Whirlpool front loader gives me the following advice...

CONTROL WON’T ACCEPT SELECTIONS
1. Press PAUSE/CANCEL button on the touch-pad twice.
2. Drain the unit, then check that the drain hose and drain
pump filter are clear of foreign objects.
3. Check the touch-pad/LED assembly by selecting different
cycles and changing the modifiers and options available to
confirm the touch-pad/LED is responding.
4. Unplug washer or disconnect power.
5. Check harness connections.
6. Plug in washer or reconnect power.
7. Verify CCU operation by running a Diagnostic test or any
cycle
BTW: The full manual is at http://www.servicematters.com/docs/wiring/Tech%20Sheet%20-%208182208.pdf

I have the same problem with the calc not responding to removing one batt and reinstalling while holding clear, etc. My fix is to hook up wires to the battery leads and plug the wire into a 120 volt outlet. Watch it light up, but do NOT breath the smoke as it is extremely toxic. ;-) lkw