GE Profile Combo Dryer Drying Too Long After Power... | appliancefaults.com

Technical Background:

The main control unit (MCU) manages the drying cycle based on input from moisture sensors and thermistors. A power surge can corrupt the MCU's program or damage components on the control board, leading to incorrect cycle timing or inaccurate temperature readings. Voltage paths to the heating element and sensors must be intact for proper operation.

Symptoms:

The GE Profile Combo dryer runs for an excessively long time without adequately drying clothes, even after resetting the unit following a power surge. The cycle may appear to continue indefinitely, or clothes may be damp at the end of the cycle.

Possible Causes:

Corrupted drying algorithm in the main control unit (MCU).
Faulty moisture sensor giving inaccurate readings.
Heating element not operating at full capacity.
Blocked exhaust vent restricting airflow.
Thermistor malfunction causing incorrect temperature readings.
Relay on the control board stuck or damaged.

Solution:

1

Unplug the GE Profile Combo or turn off the breaker. Wait 5 minutes.
2

Check the exhaust vent for blockages using a dryer vent brush. Ensure the vent hose is not kinked or crushed.
3

Inspect the moisture sensor bars inside the drum. Clean them with a damp cloth if necessary.
4

Access the heating element (usually behind the rear panel). Use a multimeter to test its continuity. Resistance should be within the manufacturer's specifications (typically 9-13 ohms).
5

Check the thermistor, usually located near the heating element. Measure its resistance at room temperature (around 75°F). Compare the reading to the service manual’s temperature/resistance chart.
6

Inspect the relay on the main control board that controls the heating element. Look for signs of burning or damage.
7

If the issue persists, consider replacing the main control board, especially if the power surge was significant.

Safety Warning:

Disconnect power to the appliance before performing any repairs. High voltage is present in the control panel and at the heating element. Always follow Lock Out Tag Out (LOTO) procedures when working on electrical appliances.

Prevention:

Install a surge protector on the outlet powering the GE Profile Combo. Regularly clean the lint filter and exhaust vent to maintain proper airflow. Avoid overloading the dryer.

Expert Tip:

Try entering the service mode to run a diagnostic cycle. The specific sequence varies by model, but often involves pressing and holding multiple buttons simultaneously (e.g., Start + Options for 3 seconds). Refer to the service manual for the correct sequence.

Frequently Asked Questions

•What is the typical resistance range for the thermistor on this model at 70 degrees Fahrenheit?

The thermistor resistance at 70 degrees Fahrenheit should be approximately 10,000-12,000 ohms. Refer to the service manual for exact specifications.

•How do I access the main control board on the GE Profile Combo unit?

The main control board is typically located behind the control panel. Disconnect power. Remove the screws securing the control panel and carefully detach it. The control board will be mounted inside. Take photos before disconnecting any wires.

•What type of surge protector is recommended for this appliance?

A heavy-duty surge protector with a joule rating of at least 2000 joules and UL certification is recommended. It should have surge protection for all three lines (hot, neutral, and ground).

GE Profile Combo Dryer Drying Too Long After Power Surge: Reset Instructions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the typical resistance range for the thermistor on this model at 70 degrees Fahrenheit?

•How do I access the main control board on the GE Profile Combo unit?

•What type of surge protector is recommended for this appliance?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: