What the Error Code Means
Error code F03 generally means the dryer detected a temperature condition outside the expected range.
It points to temperature monitoring rather than a confirmed single failure.
Common Symptoms You May Notice
- The dryer stops mid-cycle and shows F03.
- Clothes remain damp or take longer to dry.
- The cycle pauses and does not complete normally.
Most Common Causes (From Least to Most Serious)
- Restricted airflow: Lint buildup or a blocked vent can affect temperature readings and drying performance.
- Dryer is overloaded: Large loads can reduce airflow and affect temperature control.
- Temperature sensing is outside the expected range: In some cases the dryer pauses when it cannot confirm normal temperature behavior.
Safe Things You Can Check Yourself
- Clean the lint screen before starting a new cycle.
- Make sure the exterior vent flap is not blocked by lint or debris.
- Try a smaller load to see if drying improves.
If at any point this feels unsafe or unclear, stop and contact a professional.
When to Stop and Call for Service
- The F03 code returns after airflow and load checks.
- The dryer runs but does not heat at all.
- You notice burning smells, unusual noises, or repeated shutdowns.
Typical Repair Cost Range
$150-$400 is typical for professional diagnosis and repair of dryer heating issues, depending on the cause and parts involved.
Costs vary by region, model, and provider. Request an estimate before approving any repair.