How to Fix a Dryer That's Not Heating
A dryer that tumbles but doesn't heat is usually caused by a blown thermal fuse, a clogged vent, or a faulty heating element. Diagnose and fix the most common causes yourself and save a $200 service call.
Repair & Refinish Team
Published March 15, 2026 · Updated March 21, 2026
What You'll Need
- Multimeter (for continuity testing)
- Phillips and Torx screwdrivers
- Nut driver (1/4" and 5/16")
- Dryer vent cleaning brush kit
- Vacuum with hose attachment
- Work gloves
- Thermal fuse (model-specific, $5-$15)
- Heating element (if needed, $20-$60)
- High-temperature electrical tape
- Dryer vent cleaning brush (if vent is clogged)
Cost Estimate
Budget
$10
Mid-Range
$40
Premium
$80
An appliance tech charges $150-$300 for dryer heating diagnosis and repair. DIY parts cost $10-$80 depending on the component.
Step-by-Step Instructions
Check the Dryer Vent for Blockage
Step 1 of 6Go outside and find where the dryer vent exits the house. Start a dryer cycle and hold your hand near the vent opening — you should feel strong, warm airflow. If airflow is weak or absent, the vent is clogged. Disconnect the vent hose from the back of the dryer and from the wall. Use a dryer vent cleaning brush kit to clear lint from the entire duct run. Reconnect and test again.
A clogged vent is the most common root cause of dryer heating failures AND the #1 cause of dryer fires (2,900 per year in the US). Clean your vent at least once per year.
A clogged dryer vent is a serious fire hazard. Lint is highly flammable. If your vent hasn't been cleaned in over a year, prioritize this step.
Unplug the Dryer and Access the Thermal Fuse
Step 2 of 6Unplug the dryer from the wall outlet (or turn off the breaker if the plug is inaccessible). Pull the dryer away from the wall. For most dryers, remove the back panel (held by screws) to access the thermal fuse. The thermal fuse is a small white or silver component mounted on the exhaust duct or the heating element housing. It has two wire terminals.
Electric dryers use 240 volts. ALWAYS unplug the dryer before removing any panels or touching internal components. Verify the power cord is disconnected.
Test the Thermal Fuse with a Multimeter
Step 3 of 6Disconnect one wire from the thermal fuse (pull it straight off the terminal). Set your multimeter to the continuity setting (the diode or beep symbol). Touch one probe to each terminal on the fuse. If the multimeter beeps (shows continuity), the fuse is good. If there's no beep (no continuity), the fuse is blown and needs replacement. A blown thermal fuse is the single most common cause of a no-heat dryer.
Write down your dryer's model number (on a sticker inside the door or on the back panel) before ordering parts. Thermal fuses are model-specific.
Replace the Thermal Fuse
Step 4 of 6If the fuse tested as blown, disconnect both wires from the fuse terminals (note which wire goes where). Unscrew the mounting screw holding the fuse. Install the new fuse in the same position, reconnect the wires, and tighten the screw. Thermal fuses cost $5-$15 and are available at appliance parts stores and online. Make sure the replacement matches your dryer model.
Test the Heating Element (If Fuse Was Good)
Step 5 of 6If the thermal fuse tested OK, the heating element may be burned out. Locate the element (a large coil inside a metal housing, usually behind the drum or at the back of the dryer). Disconnect one wire and test for continuity with the multimeter. If there's no continuity, the element is broken and needs replacement. Also test for a short to ground: touch one probe to an element terminal and the other to the metal housing. If you get a beep, the element has shorted to ground and must be replaced.
Reassemble and Test
Step 6 of 6Replace the back panel and secure all screws. Push the dryer back into position. Reconnect the vent hose and plug the dryer back in. Run a timed dry cycle on high heat with a load of damp towels. Within 5 minutes, you should feel hot air inside the drum. Let the full cycle run and verify the towels come out dry. If the dryer still doesn't heat, the issue may be the high-limit thermostat, cycling thermostat, or (on gas dryers) the igniter — at this point, consider calling a tech.
After replacing a thermal fuse, always clean the dryer vent. The fuse blew because of overheating — if you don't fix the root cause (restricted airflow), the new fuse will blow again.
Recommended Products
Flexible lint brush with multiple extensions that reach the entire vent run. Attaches to any drill. Removes years of accumulated lint. Works on all vent types.
Affordable multimeter with continuity beeper, AC/DC voltage, and resistance testing. Auto-ranging. The essential diagnostic tool for appliance repair.
Includes thermal fuse, high-limit thermostat, and cycling thermostat. Compatible with most Whirlpool, Kenmore, and Maytag dryers. Covers the three most common no-heat parts.
Affiliate Disclosure: We earn a small commission when you buy through our links at no extra cost to you.
Tips & Warnings
- Order parts by your dryer's model number for an exact match. The model sticker is usually inside the door opening or on the back panel.
- Keep a multimeter in your toolbox. A basic $15 multimeter is the key to diagnosing most appliance problems without a service call.
- Clean the lint trap before every load AND clean the full vent duct once a year. This prevents overheating, saves energy, and prevents fires.
- If your dryer is gas-powered and not heating, check the gas supply valve (behind the dryer) first. It may have been turned off accidentally.
- Always unplug the dryer before removing panels or touching any components. Electric dryers use 240 volts, which is lethal.
- For gas dryers, turn off the gas supply valve before working near the burner assembly. If you smell gas, leave the area and call your gas company.
- A clogged dryer vent is the #1 cause of home dryer fires. If your vent hasn't been cleaned in over a year, clean it before using the dryer again.
Frequently Asked Questions
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