Dryer Keeps Tripping Breaker

Quick answer

A dryer tripping its breaker is usually due to an overloaded circuit, a faulty heating element, or a short in the wiring. Turn off the power, unplug the dryer, and check for these issues.

Confirm the symptom

• Dryer trips the circuit breaker every time it runs
• Breaker trips after 10–30 minutes of use
• Dryer works for a while then stops with a tripped breaker
• Other appliances on the same circuit also trip the breaker

Tools and prep

• Voltage tester
• Screwdrivers (flathead and Phillips)
• Multimeter
• Owner’s manual for the dryer
• Work gloves
• Turn off power at the circuit breaker before starting
• Unplug the dryer from the wall outlet

Step-by-step troubleshooting

1. Check the Circuit Load
   Do: Verify the dryer is on a dedicated 240V, 30-amp circuit. Check the breaker size in the electrical panel and compare it to the dryer’s requirements in the manual.
   Observe: Breaker size matches the dryer’s requirements and is not overloaded.
   Means: The circuit is properly sized if the breaker matches the dryer’s amperage.
   Next: If the circuit is correct, move to the next step.
2. Inspect the Heating Element
   Do: Remove the back panel of the dryer and visually inspect the heating element for signs of burning, cracks, or shorts.
   Observe: Heating element shows visible damage or discoloration.
   Means: A damaged heating element can cause a short and trip the breaker.
   Next: Replace the heating element if damaged.
3. Test the Heating Element with a Multimeter
   Do: Set the multimeter to continuity mode and test the heating element for continuity. A good element will show continuity; no reading means it’s faulty.
   Observe: Multimeter shows no continuity or infinite resistance.
   Means: The heating element is open and needs replacement.
   Next: Replace the heating element.
4. Check the Dryer Vent System
   Do: Inspect the vent hose and exterior vent for blockages, kinks, or lint buildup.
   Observe: Vent is clear and free of obstructions.
   Means: A clogged vent can cause overheating and trip the breaker.
   Next: Clean the vent system if blockages are found.
5. Inspect the Dryer Motor
   Do: Use the multimeter to test the motor windings for continuity. A shorted motor will show low or no resistance.
   Observe: Motor shows no continuity or erratic readings.
   Means: A faulty motor can cause electrical issues and trip the breaker.
   Next: Replace the dryer motor if faulty.
6. Check for Electrical Shorts
   Do: Inspect all wiring connections for loose, frayed, or damaged wires. Look for signs of arcing or burning.
   Observe: Wires are intact, properly connected, and show no signs of damage.
   Means: Electrical shorts can cause the breaker to trip.
   Next: Repair or replace damaged wiring.
7. Test the Thermostat and Thermal Fuse
   Do: Use the multimeter to test the thermostat and thermal fuse for continuity. A failed component will show no continuity.
   Observe: Thermostat or thermal fuse shows no continuity.
   Means: A failed safety component can prevent proper operation and cause overheating.
   Next: Replace the faulty thermostat or thermal fuse.
8. Verify the Dryer’s Grounding
   Do: Ensure the dryer is properly grounded by checking the grounding wire connection to the electrical panel.
   Observe: Grounding wire is securely connected and shows no damage.
   Means: Poor grounding can lead to electrical faults and tripped breakers.
   Next: Secure or replace the grounding wire if necessary.

Common causes

Parts matching

Common parts needed to fix a dryer that keeps tripping the breaker include:

• Heating Element: Replaces a damaged or shorted element causing electrical overload.
• Vent Cleaning Kit: Clears lint and blockages from the dryer vent to prevent overheating.
• Thermal Fuse: Replaces a failed safety component that prevents overheating.
• Dryer Motor: Replaces a motor with internal shorts or electrical faults.
• Wiring Kit: Repairs or replaces damaged or loose wiring connections.
• Dedicated Circuit: Ensures the dryer has the correct electrical capacity.

Always match parts to your dryer model using the owner’s manual or manufacturer’s website.

When to call a professional

• The dryer trips the breaker immediately after plugging it in.
• You smell burning or see visible damage to the wiring.
• You are not comfortable working with electrical components.
• The issue persists after replacing all suspected parts.
• The dryer is old and multiple components are failing.
• You suspect a faulty circuit breaker or electrical panel issue.

FAQ

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