Whirlpool Dryer WED5620HW Error Code d80: Vent Blockage... | appliancefaults.com

Technical Background:

The d80 error code indicates that the dryer's control board (MCU) has detected insufficient airflow through the venting system. The thermistor readings are outside of normal parameters. The MCU monitors the temperature sensors and calculates exhaust flow. If flow is restricted, the d80 error is displayed.

Symptoms:

The homeowner observes that the dryer takes much longer than usual to dry clothes, the dryer may be hot to the touch, and the d80 error code is displayed on the control panel.

Possible Causes:

Blocked dryer vent.
Kinked or crushed vent hose.
Lint buildup in the dryer's internal venting system.
Restricted exhaust hood on the outside of the house.
Faulty thermistor.

Solution:

1

Unplug the dryer from the power outlet and disconnect the vent hose from the back of the dryer.
2

Inspect the vent hose for kinks, crushes, or excessive lint buildup. Replace if necessary.
3

Use a vent brush or vacuum with a hose attachment to thoroughly clean the vent hose and the dryer's exhaust duct.
4

Check the outside exhaust hood for any obstructions like bird nests or debris. Remove any obstructions.
5

Remove the dryer's rear panel (using a 1/4-inch nut driver) to access the internal venting. Clear any lint buildup from the blower housing and exhaust duct.
6

Use a multimeter to test the thermistor resistance. A typical reading at room temperature (75°F) should be around 10k-12k ohms. Replace if out of range.
7

Reconnect the vent hose to the dryer, ensuring a secure connection with foil tape, and plug the dryer back into the power outlet. Run a test cycle.

Safety Warning:

Disconnect power to the appliance before performing any repairs. High voltage is present when the dryer is plugged in. Lock Out/Tag Out (LOTO) procedures should be followed.

Prevention:

Clean the lint filter after every load. Schedule a licensed technician dryer vent cleaning at least once a year.

Expert Tip:

To enter diagnostic mode, press and hold the Start/Pause and Cycle Signal buttons simultaneously for about 3 seconds. This will allow you to view error codes and run diagnostic tests.

Frequently Asked Questions

•What is the proper way to clean the dryer vent?

Use a dryer vent cleaning kit with a long, flexible brush. Work the brush through the vent, dislodging lint. Then, use a vacuum with a hose attachment to remove the loosened lint.

•How often should I clean my dryer vent?

At least once a year. More frequent cleaning may be necessary depending on dryer usage and the length of the vent run.

•Where is the thermistor located in the dryer?

The thermistor is usually located on the blower housing or near the exhaust duct inside the dryer. Refer to the dryer's service manual for the exact location.

Whirlpool Dryer WED5620HW Error Code d80: Vent Blockage Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the proper way to clean the dryer vent?

•How often should I clean my dryer vent?

•Where is the thermistor located in the dryer?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: