Roper Washer Smells Musty After Hot Wash: Troubleshooting... | appliancefaults.com

Technical Background:

The Roper washer's MCU (Microcontroller Unit) controls various functions, including water fill, wash cycles, and drain cycles. Residual water and detergent, combined with inadequate ventilation, create an ideal environment for microbial growth. Voltage paths related to the drain pump and water inlet valve need to be verified for proper operation.

Symptoms:

US homeowner observes a persistent musty or moldy odor emanating from their Roper washing machine, particularly noticeable after running a hot wash cycle. Clothes may also retain the unpleasant smell even after being washed and dried.

Possible Causes:

Buildup of detergent and fabric softener residue.
Mold and mildew growth in the drum, bellow, or dispenser.
Standing water in the sump or drain hose.
Clogged drain line restricting complete water drainage.
Lack of proper ventilation allowing moisture to linger.

Solution:

1

Unplug the washer from the 120V AC outlet and turn off the water supply valves.
2

Inspect the rubber door bellow for mold. Mix a solution of 1 cup bleach per gallon of water. Wearing gloves, scrub the bellow thoroughly. Rinse with clean water.
3

Clean the detergent dispenser drawer. Remove the drawer and wash it with hot, soapy water. Use a small brush to remove any buildup. Rinse and dry completely before replacing.
4

Run a self-clean cycle with a washing machine cleaner, following the manufacturer's instructions. If your model lacks this cycle, run an empty hot water cycle with 1 cup of bleach.
5

Check the drain hose for kinks or clogs. Disconnect the hose and flush it with water to remove any debris. Ensure the hose is properly connected to the drain standpipe.
6

Inspect the drain pump filter (if accessible). Remove any lint, hair, or other debris.
7

Leave the washer door ajar after each use to promote air circulation and prevent moisture buildup.

Safety Warning:

Always disconnect the power supply to the washing machine at the breaker panel before performing any maintenance or repairs (LOTO). Be aware of potential shock hazards when working with electrical components. Verify there is no voltage present before touching any wires.

Prevention:

Regularly clean the washer with a washing machine cleaner. Use the appropriate amount of detergent. Leave the door slightly ajar after each wash to allow the machine to dry thoroughly. Periodically clean the dispenser drawer and bellow with a bleach solution.

Expert Tip:

To access the service mode on many Roper washers, press and hold the Start/Pause button for 3 seconds, then simultaneously press and release the Cycle Select and Power buttons. This will allow you to run diagnostic tests and check error codes.

Frequently Asked Questions

•How often should I run a self-clean cycle?

It's recommended to run a self-clean cycle at least once a month, or more frequently if you notice a musty odor or heavy detergent usage.

•What type of washing machine cleaner is best to use?

You can use commercially available washing machine cleaners that contain bleach or citric acid. Follow the product instructions carefully. Alternatively, you can use a cup of bleach or baking soda in an empty hot water cycle.

•If I don't have a self-clean cycle, what settings should I use for a cleaning cycle?

Use the hottest water setting, the largest load size, and the longest wash cycle available on your machine. Add 1 cup of bleach to the dispenser before starting the cycle.

Roper Washer Smells Musty After Hot Wash: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How often should I run a self-clean cycle?

•What type of washing machine cleaner is best to use?

•If I don't have a self-clean cycle, what settings should I use for a cleaning cycle?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: