If the Whirlpool WFW9620 is not filling or is filling slowly, Whirlpool's Product Help gives five checks. Are both hot and cold valves fully open with both inlet hoses connected? Are the hoses free of kinks and connected hot (red) to hot and cold (blue) to cold? Is an anti-flood device fitted, which cuts pressure and flow? Are the inlet screens at the back of the water inlet valve clogged by minerals or debris, which you can clean with a brush and mild soap without removing the screen? And is a hose itself clogged, in which case run water through it at a sink and replace it if the stream is restricted? F8 E1 or LO FL is the washer's low-flow message.
Differential
Likely causes of “Whirlpool WFW9620 front-load washer will not fill with water or fills too slowly”, and how to tell them apart
- 1
Valves not fully open or hoses kinked
What separates it F8 E1 or LO FL and a slow fill
How to confirm Open both valves fully, and straighten the hoses
- 2
Anti-flood devices in the line
What separates it The pressure and the flow are reduced because anti flood devices are in the line
How to confirm Connect the washer directly to the supply, without the anti flood devices
- 3
Clogged inlet screens
What separates it The fill is slow because the inlet screens are clogged
How to confirm Clean the screens on the back of the inlet valve with a brush, mild soap and water
- 4
A clogged hose
What separates it The flow is restricted at the sink test because a hose is clogged
How to confirm Replace the hose, and test the flow again
Before you touch a setting
Record this first — changing settings destroys the evidence
- Whether F8 E1 or LO FL showed
- Whether flood safe devices are fitted to the hoses
- What the hose test at a sink shows
Try in this order
0 of 5 completedOpen the valves
ReversibleOpen the valves, with both hot and cold fully open and both hoses connected, and then test again to see whether it helped.
Check the hoses
ReversibleCheck the hoses, which must be free of kinks, with hot, red, to the hot valve and cold, blue, to the cold valve.
Remove flood devices
ReversibleRemove flood devices, and connect the hoses directly to the taps for optimum performance, and then test again to see whether it helped.
Clean the screens
ReversibleTurn the water off, remove the hoses with pliers, and brush the screens on the back of the inlet valve.
Test the hoses
ReversibleTest the hoses, by running water through them at a sink, and replace them if restricted.
Model-specific
What is true of this model and not of its siblings
- Clearing the low-flow code
- Whirlpool's code table says for F8 E1 or LO FL to check that the household water supply is on and both faucets or valves are fully open, that the inlet hoses are not kinked, and that no anti-flood hoses or controls are on the line, then press Pause or Cancel twice and the Power button once to clear the code. The same sequence clears several other codes after their cause is fixed.
- Parts for this problem on the WFW9620 (RepairClinic, 2026-09-20)
- double water inlet valve, cold, part number W11688995, at $73.94; water level pressure switch, part number W11316246, at $80.94; package of two 5-foot-long industrial braid hose, part number 8212487RP, at $44.22.
- Other models this page answers
- These steps also fit models WFW8620, WFW6720, WFW6605, WFW5605, WFW5090, WFC8090, WTW8127, WTW7120, WTW6157, WTW6120, WTW5057, WTW5010, WTW4855, WTW4816.
Stop boundary
When this stops being a self-service repair
- !If F8 E1 returns after the supply and screens are cleared, call Whirlpool service
Evidence ledger
Sources behind this answer
Whirlpool's own table of front-load washer codes and resolutions.
Whirlpool's own symptom articles for front-load washers, each.
Whirlpool's own product page giving the size, capacity, dispenser and app features.
Parts and list prices as shown on RepairClinic's parts search for this model number on 2026-09-20.
Exact questions
Common questions
Should I use flood-safe devices?+
Whirlpool says a direct connection gives optimum performance; anti-flood devices can reduce pressure and flow.
Which hose is which?+
Hot is red and cold is blue.
How do I clear F8 E1?+
Fix the supply, then press Pause or Cancel twice and the Power button once.
What if the drain is the cause?+
An improperly installed drain hose can also make the washer look like it is not filling.