Error code LF (Long Fill) or alphanumeric code F8 E1 (No Water Detected Entering Machine) appears when the washer has commanded its cold or hot water inlet solenoid valves to open, but the pressure sensor fails to register water entering the tub after 13 minutes. The machine pauses the cycle and sounds a continuous audible alert.
Over 70% of LF errors are not caused by defective electronics. Instead, municipal water sediment or well-water mineral scale has accumulated across the fine wire mesh filter screens inside the threaded hose connection ports.
Step 1: Inspecting & Cleaning the Inlet Sediment Screens
Turn off both hot and cold dual supply faucets before disconnecting hoses to prevent high-pressure flooding in your laundry area.
- Shut off the hot and cold wall valves.
- Unscrew the female brass water hose couplings from the plastic intake ports on the rear of the washer. Keep a small bucket nearby to catch hose residual water.
- Look directly into the two brass-threaded inlet valve ports. You will see fine blue/white mesh filter screens.
- Use a pair of needle-nose pliers to gently pinch the center plastic tab of each screen and pull straight outward.
- Soak the screens in a small cup of warm white vinegar for 10 minutes to dissolve calcium deposits. Brush clean with an old toothbrush and rinse with water.
- Push the clean screens back into the intake ports until firmly seated. Reconnect hoses and test cycle.
Step 2: Solenoid Resistance Testing with a Multimeter
If the screens are completely clean and both wall shutoff valves have strong water pressure, one of the two electromagnetic solenoid coils on the valve body has likely burned open.
| Valve Solenoid Coil | Expected OEM Reading | Condition / Action |
|---|---|---|
| Cold Water Coil Terminals | 750 Ω to 1,200 Ω (0.75k–1.2k Ω) | PASS: Solenoid windings intact. |
| Hot Water Coil Terminals | 750 Ω to 1,200 Ω (0.75k–1.2k Ω) | PASS: Solenoid windings intact. |
| Either Coil (Infinite / O.L.) | Infinite Ohms | FAIL: Solenoid burned open. Valve cannot open. Replace assembly. |
| Either Coil (0.0 Ω Short) | 0.0 Ω to 5 Ω | FAIL: Internal short circuit. Replace assembly. |
OEM Replacement Part Information
Whirlpool / Maytag Dual Water Inlet Valve Assembly
OEM Part Number: WPW10144820 (Replaces W10144820, AP6015761, PS11749042)
Compatibility: Whirlpool Cabrio, Maytag Bravos, Centennial, Commercial Technology MCT top-load washers.
Replacement Time: 20 minutes with a 1/4″ nut driver and channel-lock pliers.
Connected Diagnostic Procedures & Next Steps
Water intake delays are tightly coupled with pressure transducer readings and drainage deadlines. Cross-reference these sister guides:
