None Dryer: moisture sensor not functioning
What is this symptom?
Experiencing issues with your dryer’s moisture sensor? When it fails to detect moisture levels accurately, you may find clothes still damp after a full cycle or the dryer running excessively. This can lead to frustration and increased energy bills as the dryer struggles to complete its task. Understanding the potential causes can help you troubleshoot effectively.
Possible Causes
Lint/debris buildup on moisture sensor bars
How to Identify: Visible lint or waxy residue on the metal sensor strips inside the drum, clothes dry improperly despite correct cycle selection
Part: Moisture sensor bars
Loose or damaged wiring to sensor
How to Identify: Inconsistent sensor signal, intermittent sensing accuracy, possible visible wiring damage
Part: Wiring harness to moisture sensor
Control board or sensor circuit issue
How to Identify: Sensor tests out OK but dryer still doesn’t sense moisture properly, error codes despite correct sensor operation
Part: Dryer control board / sensor circuit
DIY Solutions
Clean the moisture sensor bars
- Unplug the dryer from power.
- Locate the moisture sensor (usually two metal strips inside the drum near the lint trap).
- Dampen a soft cloth with mild detergent or rubbing alcohol.
- Gently wipe the moisture sensor bars to remove lint/residue.
- Dry the sensor area and run a test cycle with a wet load to verify improved sensing.
Test moisture sensor with multimeter
- Unplug the dryer.
- Access the moisture sensor by removing necessary panels.
- Disconnect the sensor wiring.
- Set multimeter to resistance (ohms) mode and probe sensor terminals.
- Apply a wet cloth across sensor bars and observe change in resistance; no change may indicate sensor needs replacement.
Next step
Choose the next step for moisture sensor not functioning
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Dryer Moisture Sensor
Detects moisture in clothing so automatic drying cycles can stop at the selected dryness level.
- Typical part-only price
- $10 - $50
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Wiring Harness
Connects controls, sensors, motors, and other electrical components inside the appliance.
Main Control Board
The central brain of the appliance that controls all components, cycles, and timings.
Model-compatible Dryer parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dryer Vent Cleaning Kit
Helps remove routine lint buildup from an accessible dryer vent path. It does not diagnose or repair an E-code or failed component.
Lint Trap Cleaning Brush
A narrow brush for routine cleaning around an accessible lint screen and housing.
Dryer Vent Hose Kit
A replacement exhaust duct option for visibly crushed or damaged external venting. Check diameter, length, local code, and installation clearance.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Professional Repairs
Replace moisture sensor
Inspect and repair control board/sensor circuit
When to Call a Professional
Preventive Maintenance
-
Clean moisture sensor bars: Lint buildup that impedes moisture detection
Frequency: monthly -
Clean lint filter and dryer venting: Improves airflow, reduces lint reaching sensor
Frequency: after every use / annually vent clean
Frequently Asked Questions
Why is my Any Dryer moisture sensor not functioning?
How do I fix Any Dryer moisture sensor not functioning myself?
How much does it cost to fix moisture sensor not functioning?
When should I call a technician for moisture sensor not functioning?
References & Sources
Community Analytical Insights
Guidance from available sources; statistical claims are shown only for samples of at least 10 discussions
Common Issues Reported by Users
- Dirty moisture sensor causing inaccurate readings
- Faulty moisture sensor that needs replacement
- Wiring issues or loose connections affecting sensor performance
User Suggested Solutions
-
Clean the moisture sensor with a soft cloth and mild detergent. Locate the sensor, usually found inside the dryer drum or on the lint screen housing. Ensure it's free from lint and residue.
-
Test the moisture sensor for continuity using a multimeter. If it shows no continuity, replace the sensor. Purchase a compatible replacement part and follow the manufacturer's instructions for installation.
-
Inspect and repair any wiring issues. Check the connections leading to the moisture sensor for any signs of damage or corrosion. Repair or replace damaged wires as necessary.
Limited-source guidance; percentages and success-rate claims are not shown
View
Sources
Data compiled from real discussions on r/appliancerepair and r/Appliances:
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