GE Profile Combo Dryer Drying Too Long: Overloading... | appliancefaults.com

Technical Background:

The Combo unit's MCU (Main Control Unit) monitors the moisture sensor, temperature sensors, and motor operation to determine the drying time. The MCU applies power to the heating element (electric) or opens the gas valve (gas) based on these inputs. Voltage paths from the breaker panel supply 120V AC to the MCU and 240V AC (electric models) to the heating element. A restricted vent path or faulty sensor can disrupt this process, leading to extended drying times.

Symptoms:

The US homeowner reports that the GE Profile Combo unit is taking significantly longer than usual to dry clothes. Even small loads are taking excessive time, sometimes multiple cycles. The clothes may still be damp even after a full cycle.

Possible Causes:

Overloaded drum exceeding capacity limits
Restricted airflow due to lint buildup
Faulty moisture sensor
Defective heating element or gas valve (if applicable)
Venting issues: crushed, blocked, or excessively long vent run

Solution:

1

Unplug the Combo unit from the outlet and turn off the breaker.
2

Clean the lint filter thoroughly with a brush and vacuum.
3

Inspect the vent hose for kinks, clogs, or damage. Replace if necessary. Ensure it's less than 25 feet long with minimal bends.
4

Locate the moisture sensor inside the drum (usually near the lint filter). Clean it with a damp cloth and check for damage.
5

Access the heating element (electric) or gas valve (gas). Use a multimeter to check the heating element for continuity. It should read approximately 9-13 ohms. If open, replace it.
6

For gas models, visually inspect the gas valve and burner assembly. Ensure proper gas pressure (typically 4-7 inches of water column).
7

Reassemble the unit, plug it in, turn on the breaker, and run a test cycle with a smaller load.

Safety Warning:

Always disconnect power (LOTO - Lock Out Tag Out) before servicing the unit. High voltage (120V AC and 240V AC) is present in the appliance. Exercise caution when working with electrical components.

Prevention:

Regularly clean the lint filter after each load. Inspect and clean the vent hose at least every six months. Avoid overloading the machine to ensure proper airflow and drying efficiency.

Expert Tip:

To access the service mode, press and hold the Start and Signal buttons simultaneously for 3 seconds. This allows you to run diagnostic tests and view error codes stored in the MCU.

Frequently Asked Questions

•How do I test the moisture sensor?

The moisture sensor's resistance changes based on the moisture level. Use a multimeter to measure the resistance across the sensor terminals when dry and when damp. The resistance should decrease significantly when wet. A drastically high or low reading indicates a faulty sensor.

•What is the maximum recommended length for the vent hose?

The maximum recommended length for a rigid vent hose is 25 feet. Each 90-degree bend reduces the effective length by 5 feet. Flexible vent hoses are not recommended as they easily trap lint and restrict airflow.

•How do I check the gas pressure on a gas-powered Combo unit?

You'll need a manometer to measure the gas pressure at the gas valve. Turn off the gas supply and disconnect the gas line. Attach the manometer to the pressure test port on the valve. Turn on the gas and read the pressure. It should be within the range specified in the unit's service manual (typically 4-7 inches of water column). If the pressure is incorrect, adjust the gas regulator (if applicable) or contact a qualified gas technician.

GE Profile Combo Dryer Drying Too Long: Overloading Clothes Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I test the moisture sensor?

•What is the maximum recommended length for the vent hose?

•How do I check the gas pressure on a gas-powered Combo unit?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: