If your dryer is continuously running even after the cycle is complete, you’re likely dealing with a malfunction that could stem from the sensor. The sensor in your dryer plays a crucial role in detecting moisture levels in your clothes and regulating the drying cycle. When it malfunctions, it may fail to detect that your clothes are dry, leading to extended drying times or the dryer continuing to run without stopping.
Here’s a closer look at the sensor issue and what might be causing your dryer to overrun, along with how you can address the problem.
How Does the Sensor Work?
Modern dryers are equipped with moisture sensors designed to monitor the moisture levels of your clothes throughout the drying cycle. These sensors can detect when the clothes have reached the desired dryness, signaling the dryer to shut off. The sensor typically operates through two metal bars that detect electrical conductivity. When clothes are wet, they complete a circuit between these bars. As the clothes dry, the moisture decreases, and the circuit breaks, which sends a signal to the dryer to end the cycle.
When the sensor is working properly, your dryer will stop running as soon as the clothes are dry. However, when the sensor malfunctions, it might not detect the change in moisture levels, causing the dryer to run longer than necessary. In some cases, it may even continue running indefinitely.
Common Causes of Sensor Malfunction
Several issues can contribute to a malfunctioning moisture sensor in your dryer. Here are a few of the most common:
- Dirty Sensor Bars: Over time, lint, fabric softener, and detergent residues can accumulate on the sensor bars. This buildup can block the sensor from detecting moisture properly. Cleaning the sensor bars should be your first step in troubleshooting this issue.
- Faulty Sensor: The sensor itself may wear out or malfunction. A defective sensor can fail to detect the moisture levels accurately, causing the dryer to continue running.
- Wiring Issues: If there is an issue with the wiring that connects the sensor to the control board, the signal between the sensor and the dryer’s control system might be interrupted. This can result in the dryer not stopping when it should.
- Control Board Problems: The control board is responsible for interpreting the signal from the sensor. If the control board is faulty, it may continue to receive incorrect signals and keep the dryer running even after the cycle is complete.
- Moisture Sensor Calibration: In some cases, the dryer’s sensor may need recalibration. If the sensor is out of calibration, it may misinterpret the moisture levels in your clothes.
Symptoms of a Sensor Problem
If your dryer continues running after the cycle is complete, here are some signs that the issue may be sensor-related:
- The dryer doesn’t stop when clothes appear dry.
- Clothes are consistently over-dried, resulting in damage to fabrics.
- The drying cycle takes much longer than usual.
- The dryer keeps running for an extended period even after the clothes are dry.
How to Fix the Problem
If you notice that your dryer isn’t stopping when it should, here are some steps you can take to address the issue:
- Clean the Moisture Sensors: Start by cleaning the sensor bars. Use a soft cloth with a mild cleaner to gently wipe away any lint, fabric softener residue, or other debris that could be obstructing the sensors. Cleaning the sensors is often the simplest and quickest solution to the problem.
- Check for Obstructions: Ensure that there are no items blocking the sensor bars or interfering with their ability to detect moisture. Sometimes, small items like coins or buttons can get lodged near the sensors.
- Inspect the Wiring: If cleaning doesn’t resolve the issue, you may need to inspect the dryer’s wiring. Look for any visible signs of wear or damage to the wiring that connects the sensor to the control board.
- Test the Sensor: Use a multimeter to test the sensor for proper functionality. If it’s not working correctly, it may need to be replaced.
- Call a Professional Technician: If you’ve tried the above steps and the issue persists, it may be time to call a professional. A qualified technician can diagnose the issue accurately and replace faulty components such as the sensor, wiring, or control board.
When to Call a Professional
While cleaning and basic troubleshooting can resolve some dryer issues, persistent problems with the sensor may require professional attention. A dryer technician has the tools and expertise to diagnose sensor malfunctions, wiring issues, and control board problems.
At Poway Appliance Repair Service Center, we specialize in diagnosing and repairing dryer issues, including problems with moisture sensors. Our experienced technicians can get your dryer back to functioning properly, ensuring it stops at the right time and dries your clothes efficiently.
A dryer that doesn’t stop when the cycle is complete can be frustrating and waste energy. Most of the time, the issue is related to the moisture sensor or related components. By cleaning the sensor and checking for any obstructions or wiring issues, you can address the problem on your own. However, if the issue persists, don’t hesitate to reach out to a professional technician for assistance.
If your dryer is acting up, call Poway Appliance Repair Service Center today for expert repairs. We’ll ensure your dryer is working as it should, saving you time and energy. Contact us now!
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