Troubleshooting the F20 error code in Whirlpool Washing Machine

Basic checks:

1. Water supply: 
   • Ensure both hot and cold water faucets are completely turned on.
2. Water hoses: 
   • Check for kinks or blockages in the inlet hoses that connect to the washer. Straighten out any kinks and remove any debris caught in the hoses.
3. Water pressure: 
   • Make sure your home's water pressure is within the recommended range (usually 20-100 psi). You can usually find this information online or by contacting your water company.
4. Detergent: 
   • Using non-HE detergent in an HE washer can create excessive suds, sometimes triggering water inlet issues. Switch to an HE detergent if applicable.

More advanced troubleshooting:

1. Clean inlet valve screens: 
   • The inlet valves (located where the hoses connect to the washer) have screens that can become clogged with debris. Turn off the water supply, detach the hoses, and carefully clean the screens.
2. Check the inlet valves: 
   • If the screens are clean and the issue persists, the inlet valves themselves might be faulty. Consult your user manual or call a qualified technician for further diagnosis and repair.

Additional points:

• In some older Whirlpool models (2018 or before), the F20 error might also be displayed as FH.
• Consult your user manual for specific troubleshooting steps related to your model. It might provide additional error codes or diagnostic features.
• If you've tried all these steps and the F20 error remains, it's best to contact Whirlpool support or a qualified appliance repair technician for further assistance. They can accurately diagnose the problem and recommend the necessary repairs.

Remember, safety is crucial. If you're not comfortable with any of the troubleshooting steps, particularly involving water supply or electrical components, always seek professional help.