⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.
Error Code: Dryer Difficulty: Moderate
Problem: Thermistor Error 4. Specific to Heat Pump/Hybrid dryers. The compressor thermistor is faulty.
How to Fix Dryer Error
- Unplug the dryer.
- Access the compressor compartment (usually requires significant disassembly).
- Locate the thermistor attached to the compressor lines.
- Test resistance against the tech sheet chart (values vary by heat pump model).
- Replace the thermistor if out of spec.
Recommended Replacement Part
Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
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Most DIY parts are $50–$250. If you have a quote, use the total.
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Expert: Mike Sullivan
EPA Section 608 Certified Technician with 18+ years experience.
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