Hotpoint Dryer Burning Smell on High Heat: Troubleshootin... | appliancefaults.com

Technical Background:

The dryer's MCU (Main Control Unit) controls the heating element based on temperature sensor feedback and selected cycle. A voltage path sends 240V AC (in the US) to the heating element via a relay controlled by the MCU. Overheating can occur due to blocked airflow or a malfunctioning element.

Symptoms:

The homeowner reports a burning smell emanating from their Hotpoint dryer, particularly when using the high heat setting. Clothes may also be excessively hot or scorched.

Possible Causes:

Lint buildup in the venting system.
Overheated heating element.
Worn or failing drum support rollers.
Defective or blocked blower wheel.
Motor overload.
Foreign object caught in the drum.

Solution:

1

Disconnect power to the dryer at the breaker panel. Verify 0V AC at the dryer receptacle using a multimeter.
2

Inspect and clean the dryer vent from the dryer to the outside. Use a vent cleaning kit.
3

Access the heating element assembly. Check for continuity with a multimeter. If open (no continuity), replace the element.
4

Examine the drum support rollers for wear or damage. Replace as needed.
5

Inspect the blower wheel for obstructions. Clean or replace if damaged.
6

Test the motor windings for shorts to ground using a multimeter. Resistance readings should be within manufacturer specifications.
7

Check the thermal fuse for continuity. If open, replace it. Investigate the cause of overheating before replacing it.

Safety Warning:

Lockout/Tagout (LOTO) the dryer at the breaker panel before performing any repairs. High voltage is present inside the dryer; exercise extreme caution.

Prevention:

Clean the lint trap after every load. Inspect and clean the dryer vent system at least once a year. Check and lubricate drum support rollers annually.

Expert Tip:

On many Hotpoint dryers, entering diagnostic mode involves pressing and holding the 'Start' button and another button (typically 'Cycle Select' or 'Temperature') simultaneously for 3-5 seconds. This may display error codes helpful in pinpointing the problem.

Frequently Asked Questions

•What is the proper resistance range for the heating element on my Hotpoint dryer?

The resistance range for a typical 240V AC Hotpoint dryer heating element is between 9 and 13 ohms. Refer to the dryer's service manual for the specific resistance value for your model.

•How do I access the heating element assembly on my Hotpoint dryer?

Typically, you need to disconnect power, remove the rear access panel, and then locate the heating element housing. You may need a 1/4-inch nut driver or a 5/16-inch socket to remove the screws securing the housing.

•What type of grease should I use to lubricate the drum support rollers?

Use a high-temperature, appliance-grade grease specifically designed for dryer components. Silicone-based grease is a good option.

Hotpoint Dryer Burning Smell on High Heat: Troubleshooting and Fixes

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the proper resistance range for the heating element on my Hotpoint dryer?

•How do I access the heating element assembly on my Hotpoint dryer?

•What type of grease should I use to lubricate the drum support rollers?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: