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No Heat

LG Dryer

Severity:

Source: OnlyErrorCodes.com — Every error code. One place.

LG Dryer Not Heating — How to Fix

What Does This Error Mean?

An LG dryer that runs but produces no heat usually has a blown thermal fuse, a failed heating element, or a blocked exhaust vent that caused one of those parts to fail. Start by checking the circuit breaker and cleaning the exhaust vent.

Affected Models

  • LG Electric Dryer
  • LG Gas Dryer
  • LG DLGX Series
  • LG DLEX Series
  • LG ThinQ Dryer

Common Causes

  • Blown thermal fuse (most common — caused by blocked vent)
  • Tripped circuit breaker on one 240V leg (electric dryers)
  • Failed heating element (electric dryers)
  • Faulty igniter or gas valve coils (gas dryers)
  • Clogged exhaust vent causing overheating and part failures

How to Fix It

  1. Check the circuit breaker (electric dryers).

    Electric dryers need 240V from two 120V legs. If one leg trips, the motor runs but the heating element has no power — the drum spins but there is no heat. Check the breaker panel and reset if needed.

  2. Clean the exhaust vent thoroughly.

    A blocked vent causes the dryer to overheat, which blows the thermal fuse. Clear the full duct run from the dryer to the exterior vent cap before replacing any parts.

  3. Test and replace the thermal fuse.

    The thermal fuse is on the exhaust duct near the heating element. Test with a multimeter — no continuity means it has blown. Replace it and always address the vent blockage too or the new fuse will blow again.

  4. Test the heating element (electric dryers).

    Disconnect power and use a multimeter to test the heating element coil for continuity. An open circuit (no continuity) confirms the element has burned out and needs replacing.

  5. Check the gas igniter (gas dryers).

    If the igniter glows orange but no flame ignites, the flame sensor or gas valve coils have failed. These parts require more involved diagnosis — a technician can test and replace them efficiently.

When to Call a Professional

If the vent is clear and the thermal fuse and heating element test good, the issue may be with the gas valve assembly or control board. A technician can diagnose these accurately.

Frequently Asked Questions