Maytag Dryer: Heating Element vs. Cycling Thermostat... | appliancefaults.com

Technical Background:

The Maytag dryer's MCU (Main Control Unit) controls the heating cycle. The MCU sends voltage to the heating element via a relay. The cycling thermostat monitors the dryer's internal temperature and cycles the heating element on and off to prevent overheating. If either the heating element fails (open circuit) or the cycling thermostat fails (open circuit), the dryer will not heat. Voltage is 240V AC at the heating element connections.

Symptoms:

The dryer runs but doesn't heat up. Clothes remain damp even after a full drying cycle. The drying cycle takes excessively long. You may also notice a burning smell if the heating element is partially shorted.

Possible Causes:

Faulty heating element
Defective cycling thermostat
Blocked dryer vent
Malfunctioning thermal fuse
Failed control board relay
Wiring issue

Solution:

1

Disconnect the dryer from the power source by unplugging it or switching off the breaker in the breaker panel. Always LOTO.
2

Access the heating element and cycling thermostat. Typically, this involves removing the rear panel of the dryer using a 1/4-inch nut driver.
3

Visually inspect the heating element for any breaks or signs of damage.
4

Test the heating element for continuity using a multimeter. Set the multimeter to ohms (Ω) and place the probes on each terminal of the heating element. A reading of approximately 9-13 ohms indicates a good heating element. An open circuit (OL or infinite resistance) indicates a failed heating element.
5

Test the cycling thermostat for continuity. It should have continuity at room temperature. If there is no continuity, the thermostat is likely faulty.
6

If both the heating element and cycling thermostat test good, check the dryer vent for blockages.
7

Replace the faulty component (heating element or cycling thermostat) with a new one. Reassemble the dryer and test its operation. Ensure proper voltage (240V AC) is present at the dryer receptacle.

Safety Warning:

Disconnect power to the dryer before performing any repairs. High voltage (240V AC) is present. Use caution when working with electrical components. Lockout/Tagout (LOTO) procedures are critical.

Prevention:

Clean the dryer vent regularly (at least once a year) to prevent lint buildup, which can cause overheating and premature component failure. Avoid overloading the dryer.

Expert Tip:

Many Maytag dryers have a service mode. Refer to the technical service manual for the specific model. Entering service mode often displays error codes that can pinpoint the problem even further.

Frequently Asked Questions

•What is the typical lifespan of a Maytag dryer heating element?

A Maytag dryer heating element typically lasts between 5 to 10 years, depending on usage and maintenance. Regular cleaning of the lint trap and dryer vent can extend its lifespan.

•How do I test the thermal fuse on my Maytag dryer?

The thermal fuse is a safety device that prevents overheating. To test it, disconnect power to the dryer and locate the thermal fuse (usually on the blower housing). Use a multimeter set to ohms (Ω) and check for continuity across the terminals. If there is no continuity, the thermal fuse is blown and needs to be replaced.

•Could a faulty dryer vent cause the heating element to fail prematurely?

Yes, a clogged dryer vent restricts airflow, causing the dryer to overheat. This can stress the heating element and cycling thermostat, leading to premature failure. Always ensure the dryer vent is clean and free of obstructions.

Maytag Dryer: Heating Element vs. Cycling Thermostat Failure Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the typical lifespan of a Maytag dryer heating element?

•How do I test the thermal fuse on my Maytag dryer?

•Could a faulty dryer vent cause the heating element to fail prematurely?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: