GE Profile Dishwasher Mildew Smell: Cleaning Guide -... | appliancefaults.com

Technical Background:

The dishwasher's Main Control Unit (MCU) manages wash cycles, water temperature, and drain functions. Voltage paths control the water inlet valve, wash pump, drain pump, and heating element. Inadequate water temperature or drainage can lead to standing water and mildew growth.

Symptoms:

The homeowner observes a persistent mildew or musty smell coming from their GE Profile dishwasher, even after running cycles and using dishwasher detergents with sanitizing agents. The dishwasher is equipped with Microban® antimicrobial technology, but the odor persists.

Possible Causes:

Food particles trapped in the filter or spray arms.
Standing water in the sump area.
Biofilm buildup in the drain hose.
Insufficient high-temperature washes.
Issues with the air gap or drain line connection.
Improper detergent usage

Solution:

1

Disconnect power to the dishwasher at the breaker panel (LOTO procedure).
2

Remove and thoroughly clean the filter assembly, inspecting for cracks or damage. Use a 1/4-inch nut driver to remove access panel if needed.
3

Inspect and clean the spray arms, using a small wire to clear any clogs in the spray nozzles.
4

Check the drain hose for kinks or obstructions. Disconnect it from the sink drain and inspect. If there's a high loop ensure its properly secured.
5

Run the dishwasher on the hottest cycle with a dishwasher cleaner specifically designed to remove grease and odors. Consider using a vinegar rinse.
6

Verify proper drain function. Confirm 120V AC at the drain pump during the drain cycle using a multimeter.
7

After the cleaning cycle, manually dry the interior of the dishwasher to minimize moisture.

Safety Warning:

Always disconnect power to the appliance at the breaker panel before performing any maintenance or repairs. Exercise caution when working with electrical components, as 120V AC is present. Follow Lock Out Tag Out (LOTO) procedures.

Prevention:

• Regularly clean the dishwasher filter (at least once a month).
• Run a hot water cycle with dishwasher cleaner monthly.
• Ensure proper ventilation by leaving the dishwasher door slightly ajar after use.
• Use appropriate amount of high-quality detergent.

Expert Tip:

Many GE dishwashers have a service mode that allows for diagnostic tests and error code retrieval. Consult the technical service manual for your specific model to access the service mode sequence. This can help pinpoint issues beyond just the smell.

Frequently Asked Questions

•How do I access the service mode on my GE Profile dishwasher?

The service mode access varies by model. Typically, it involves a specific button sequence (e.g., pressing and holding certain buttons for a few seconds). Consult your dishwasher's technical service manual or search online for your specific model to find the correct sequence.

•What type of dishwasher cleaner is recommended for removing mildew?

Look for dishwasher cleaners specifically formulated to remove grease, food residue, and odors. Brands like Affresh, Finish, and Cascade offer such cleaners. Vinegar can also be used as a natural cleaning agent but never mix vinegar with bleach.

•How can I tell if my drain pump is failing?

Signs of a failing drain pump include slow or incomplete drainage, unusual noises during the drain cycle, and a burning smell. You can test the pump's continuity with a multimeter. Resistance should be in the range specified by the manufacturer (consult the service manual).

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the service mode on my GE Profile dishwasher?

•What type of dishwasher cleaner is recommended for removing mildew?

•How can I tell if my drain pump is failing?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: