GE Profile UltraFast Combo Smells Like Burning Lint:... | appliancefaults.com

Technical Background:

The GE Profile UltraFast Combo's drying cycle is controlled by the Main Control Unit (MCU). The MCU monitors temperature sensors and controls the heating element via a relay. Voltage (120V AC) is supplied to the heating element when the MCU determines it is necessary to maintain the set temperature. Faulty sensors or blocked airflow can cause overheating.

Symptoms:

US homeowner observes a burning lint smell emanating from their GE Profile UltraFast Combo during the dry cycle.

Possible Causes:

Restricted exhaust vent
Overheated heating element
Lint buildup in the blower housing
Faulty temperature sensor
Damaged dryer belt rubbing against components
Incorrect dryer settings

Solution:

1

Disconnect power to the unit at the breaker panel. Verify 0V AC at the wall receptacle with a multimeter.
2

Inspect and clean the exhaust vent from the dryer to the outside of the house. Ensure there are no kinks or obstructions. Maximum run should not exceed manufacturer's specifications.
3

Remove the rear access panel using a 1/4-inch nut driver. Inspect the blower housing for lint accumulation. Clean thoroughly.
4

Check the heating element for continuity using a multimeter. A reading of approximately 9-13 ohms is typical. Replace if open or shorted.
5

Inspect the dryer belt for wear or damage. Replace if frayed or cracked. Ensure proper tension.
6

Examine the temperature sensor wiring and connections. If sensor reading appears abnormal during operation using a multimeter, replace the sensor.
7

Test the thermistor with a multimeter. Compare against the resistance chart for the unit at room temperature (approximately 75 degrees F). Replace if out of specification.

Safety Warning:

Always disconnect power to the appliance at the breaker panel before performing any repairs. Lock Out/Tag Out (LOTO) procedures must be followed. High voltage is present inside the appliance.

Prevention:

Clean the lint filter after every load. Inspect and clean the exhaust vent at least twice a year. Use rigid metal ducting for the exhaust vent if possible. Avoid over-drying clothes.

Expert Tip:

Enter service mode by pressing and holding the Start/Pause button for 3 seconds, then simultaneously pressing the Temperature and Dryness buttons. This will allow you to run diagnostic tests and view error codes.

Frequently Asked Questions

•What is the proper length and material for the exhaust vent?

The exhaust vent should be as short and straight as possible, ideally less than 25 feet. Use rigid metal ducting for optimal airflow and fire safety. Avoid flexible plastic or foil ducting.

•Where is the temperature sensor located, and how do I test it?

The temperature sensor is typically located near the heating element housing. To test it, disconnect power, disconnect the sensor wiring, and use a multimeter to measure its resistance at room temperature. Compare the reading to the manufacturer's resistance chart.

•What is the proper belt tension for the dryer belt?

Proper belt tension should allow approximately 1/2 inch of deflection when pressed midway between the motor pulley and the drum pulley. Too tight or too loose will cause issues with the drying performance.

GE Profile UltraFast Combo Smells Like Burning Lint: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the proper length and material for the exhaust vent?

•Where is the temperature sensor located, and how do I test it?

•What is the proper belt tension for the dryer belt?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: