Maytag Centennial Dryer Takes 3 Hours to Dry:... | appliancefaults.com

Technical Background:

The Maytag Centennial dryer uses a Main Control Unit (MCU) to manage the drying cycle. The MCU monitors input from moisture sensors, thermostats, and thermistors to regulate the heating element and motor operation. Voltage paths supply 120V AC to the motor and heating element, controlled by relays on the MCU based on sensor feedback. Incorrect readings from sensors or a faulty MCU can cause extended drying times.

Symptoms:

US homeowner observes that the Maytag Centennial dryer is taking approximately 3 hours to dry a load of jeans, particularly during periods of high humidity.

Possible Causes:

Clogged vent system restricting airflow
Faulty heating element not generating sufficient heat
Defective thermostat or thermistor misreading temperature
Malfunctioning moisture sensor causing premature cycle termination
Weak or worn drum rollers causing drag

Solution:

1

Unplug the dryer from the wall outlet and turn off the breaker.
2

Disconnect the vent duct from the back of the dryer and thoroughly clean it and the dryer vent opening using a vent cleaning kit.
3

Inspect the heating element for continuity using a multimeter. It should read approximately 9-11 ohms. Replace if open or shorted.
4

Check the thermostats and thermistors on the blower housing and heating element housing for continuity. Replace any that are open at room temperature (approximately 70-75°F).
5

Examine the moisture sensor bars inside the drum for lint buildup. Clean them gently with a Scotch-Brite pad.
6

Inspect the drum rollers for wear and tear. Replace if they are cracked, flattened, or difficult to turn.
7

Reassemble the dryer, plug it back in, turn on the breaker, and test the drying cycle.

Safety Warning:

Disconnect power to the dryer before performing any repairs. Use proper Lock Out Tag Out (LOTO) procedures to prevent accidental energization. High voltage (120V AC) is present inside the dryer. Exercise caution when working with electrical components.

Prevention:

Clean the lint filter after every load. Inspect and clean the vent duct at least once a year, or more frequently if you notice reduced drying performance.

Expert Tip:

To enter diagnostic mode on some Maytag Centennial dryers, press and hold the Start/Pause button and then press the More Time button four times within five seconds. This allows you to view error codes and run diagnostic tests.

Frequently Asked Questions

•What is the correct ohm reading for the thermistor at room temperature?

The thermistor's resistance varies with temperature. Typically, at room temperature (around 70-75°F), it should read between 10,000 and 12,000 ohms. Use a multimeter to measure the resistance.

•How do I access the heating element on my Maytag Centennial dryer?

Unplug the dryer. Remove the rear access panel using a 1/4-inch nut driver. The heating element housing will be visible. Disconnect the wires and remove the screws securing the housing. The element can then be removed for inspection.

•What type of vent duct material is recommended for my dryer?

Rigid metal ductwork is highly recommended for dryer vents. It provides the best airflow and is the least likely to accumulate lint and pose a fire hazard. Avoid using flexible plastic or foil ducts, as they can easily trap lint and restrict airflow.

Maytag Centennial Dryer Takes 3 Hours to Dry: Troubleshooting Slow Drying Times

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the correct ohm reading for the thermistor at room temperature?

•How do I access the heating element on my Maytag Centennial dryer?

•What type of vent duct material is recommended for my dryer?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: