Whirlpool WFW6620HW Washer: Gray Streaks or Grease Spots... | appliancefaults.com

Technical Background:

The Main Control Unit (MCU) controls the water inlet valves, drain pump, and motor based on user settings and sensor inputs (water level, temperature). Proper detergent dispensing and drum seal integrity are crucial for clean clothes. Voltage to the water valves is 120V AC during fill cycles, controlled by relays on the MCU.

Symptoms:

US homeowner reports gray streaks or grease spots on clothes after washing in a Whirlpool WFW6620HW washer.

Possible Causes:

Worn or damaged drum seal allowing grease from the outer tub bearing to leak.
Detergent dispenser clogged or malfunctioning, causing concentrated detergent to stain clothes.
Overloading the washer, preventing proper detergent distribution and rinsing.
Using incorrect type or amount of detergent.
Build-up of fabric softener or detergent residue in the washer drum or hoses.
Damaged drive shaft or bearing

Solution:

1

Unplug the washer from the 120V AC outlet.
2

Inspect the drum seal (between the inner and outer tubs) for signs of wear, cracks, or damage. Replacement requires disassembling the washer cabinet.
3

Check the detergent dispenser for clogs or blockages. Remove the dispenser drawer and clean thoroughly with warm water and a brush.
4

Run a washer cleaning cycle with a washing machine cleaner or a cup of bleach to remove residue build-up. Follow the cleaner's instructions.
5

Verify correct detergent usage. Refer to the detergent manufacturer's recommendations and the washer's user manual.
6

Inspect the drain hose for kinks or obstructions that could prevent proper draining and rinsing.
7

If the drum seal is damaged, replace it. Disassembly requires removing the top panel, front panel, and inner basket using a 5/16-inch socket and a flathead screwdriver.

Safety Warning:

Disconnect power before any repairs. Lock Out/Tag Out (LOTO) procedures must be followed. High voltage is present within the appliance.

Prevention:

Regularly clean the detergent dispenser. Use the correct type and amount of detergent. Avoid overloading the washer. Run a cleaning cycle monthly.

Expert Tip:

Enter the washer's diagnostic mode by pressing and holding the Start/Pause button for 3 seconds, then rotating the cycle selector knob until the diagnostic cycle is selected. This allows you to view error codes and test individual components.

Frequently Asked Questions

•How do I replace the drum seal on this washer?

Replacing the drum seal involves significant disassembly, including removing the washer's cabinet, inner basket, and outer tub. You'll need a socket set, screwdrivers, and potentially a tub spring expansion tool. It's a time-consuming process best left to a qualified technician if you are not experienced in appliance repair.

•What type of detergent is recommended for the WFW6620HW?

High-Efficiency (HE) detergent is required for this washer. Using non-HE detergent can cause excessive sudsing and residue buildup, leading to poor cleaning performance and potential damage to the washer.

•Where can I find a replacement drum seal for the WFW6620HW?

You can find replacement drum seals at most appliance parts retailers, both online and in brick-and-mortar stores. Be sure to verify the part number is compatible with your specific model number (WFW6620HW). Common online retailers include AppliancePartsPros and RepairClinic.

Whirlpool WFW6620HW Washer: Gray Streaks or Grease Spots on Clothes - Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I replace the drum seal on this washer?

•What type of detergent is recommended for the WFW6620HW?

•Where can I find a replacement drum seal for the WFW6620HW?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: