Dryer Gets Too Hot

By Fix4U Team
Dryer, Laundry Appliances

Doing laundry is frustrating enough without having to worry about your dryer turning into a raging inferno. Excessive dryer heat can damage clothes, reduce appliance lifespan, and even become a fire hazard.

But don’t panic – in most cases, overheating dryers are the result of fairly straightforward issues that can be quickly identified and repaired. This troubleshooting guide from Fix4U Repairs will cover the common culprits behind overly hot dryers and help you restore normal safe operation.

Why Is Your Dryer Overheating?

Dryer overheating usually indicates one of these problems:

  • Clogged Vent Duct: As lint and debris accumulate over time, airflow is restricted. This causes heat to backup rather than escape through the vent.
  • Plugged Lint Screen: Much like a clogged vent duct, a blocked lint screen prevents proper airflow which results in overheating.
  • Defective Thermostat: A faulty high-limit thermostat fails to sense excessive heat and shut off the heating element like it should to prevent overheating.
  • Heating Element Failure: If the heating coils droop and touch the housing, improper contacts can create shorts and generate excessive heat.
  • Damaged Blower Housing: Dents or cracks in the blower housing causes turbulence that disrupts airflow, leading to heat buildup.
  • Insufficient Venting: An improperly vented dryer without adequate duct size or run length can result in inadequate heat and moisture evacuation.
  • Gas Valve Malfunction: Defective valves on gas dryers can get stuck open, allowing too high gas volume to the burner and overheating.

Diagnosing an Overheating Dryer

Start basic troubleshooting of dryer overheating with these steps:

  • Clean the lint screen and use a duct brush to clear any clogs or debris in vent duct.
  • Visually inspect heating element coils for sagging or damage. Test thermostat continuity.
  • Remove vent duct and check for kinks or tight bends limiting airflow.
  • Ensure vent duct meets length and diameter standards for your model.
  • Test voltage to the heating element during cycles to confirm proper operation.
  • Clean out blower housing and verify blower wheel spins freely.

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How to Fix an Overheating Dryer

Once the cause is determined, many overheating issues have straightforward repairs:

Clear Lint and Debris

  1. Remove lint-clogged screen. Brush and vacuum vent duct.
  2. Confirm duct is free of debris by inspecting exhaust end during dryer run.
  3. Install new UL-approved foil duct if plastic duct is heat damaged.

Replace Thermostat

  1. Unplug dryer and remove back panel to access thermostat.
  2. Label wires, remove thermostat bracket, and install new thermostat.
  3. Reattach wires and test operation for proper thermostat cycling.

Replace Heating Element

  1. Disconnect element wires and remove mounting screws.
  2. Install replacement heating element, leaving proper clearance.
  3. Reattach wires and screws. Test operation.

Preventing Dryer Overheating

Implement these maintenance practices to avoid overheating problems:

  • Clean the lint screen before every load.
  • Detach and wash vent ducts yearly to remove lint and debris.
  • Replace plastic vent ducts with UL-approved metal ducts.
  • Confirm vent duct is properly sized, stretched, and directed outside.
  • Have heating element and thermostats tested annually.
  • Follow all manufacturer operating guidelines.

Don’t take chances with a dangerously overheating dryer – contact the appliance repair experts at Fix4U Repairs for service. We can diagnose causes of excessive heat and get your dryer operating safely again. Call us at (647) 363-5205!

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