What You Need to Know Before Starting

A dryer heating coil is a wire element that heats the air inside your dryer drum. When it burns out, your dryer will run but produce no heat—clothes come out damp and cold. Replacing it yourself takes two to four hours and costs $150 to $300 in parts, depending on your dryer model. The job requires disconnecting electrical power, removing the dryer's front or rear panel, and unbolting the old coil to install a new one.

This is a task most home owners can handle with basic tools: a screwdriver set, a socket wrench, and a multimeter to test for power. You do not need special training, but you do need to follow the safety steps exactly—a dryer heating coil carries high voltage even when unplugged if the capacitor still holds a charge.

Key Takeaways

  • Always unplug the dryer and wait five minutes before opening it, then use a multimeter to confirm the power is truly off inside the unit.
  • Order a replacement coil using your dryer's exact model number, found on a sticker inside the door frame or on the back panel.
  • The heating coil sits inside a metal housing called the heater box; you will need to remove the front or rear panel to reach it, depending on your dryer design.
  • After installing the new coil, test it by running the dryer on high heat for ten minutes with the door open to check for any burning smell or visible sparks.

Gather Your Tools and the Right Replacement Part

Before you touch the dryer, locate your model number. Open the dryer door and look for a white or silver sticker on the inside edge of the door frame, or check the back panel near the power cord. Write down the full model number—it usually starts with letters and includes numbers, like "LG DLE3400W" or "Whirlpool WED5620HW".

Go to the manufacturer's website or call their parts line with this number. Order the heating coil assembly for your exact model. Do not guess or buy a "universal" coil; they vary by voltage and wattage, and the wrong one will not fit or will not heat properly. While you wait for the part, gather a Phillips and flathead screwdriver, a socket wrench set, a multimeter (available at any hardware store for $15 to $30), and a flashlight. Lay out old towels under the dryer to catch any lint or debris that falls during disassembly.

Disconnect Power and Discharge the Capacitor

Unplug the dryer from the wall outlet. If your dryer is hardwired (connected directly to the electrical panel with no plug), turn off the breaker that controls it and tape the breaker switch in the off position so no one turns it back on while you work.

Wait five minutes. Even unplugged, a dryer's capacitor—a small cylindrical part near the motor—stores electrical charge and can deliver a painful shock. Set your multimeter to the AC voltage setting. Touch one probe to the metal frame of the dryer and the other to the terminals on the capacitor. If the meter reads zero, the capacitor is safe. If it reads any voltage, the capacitor still holds a charge. In that case, use an insulated screwdriver to short the two capacitor terminals together by touching them both at once—this will discharge it safely with a small spark. Wait another minute and test again with the multimeter to confirm zero voltage before proceeding.

Remove the Front or Rear Panel to Access the Heating Coil

Most dryers have the heating coil accessible from the front, but some older models require removing the rear panel. Check your manual or look at the dryer's design: if you see a large drum visible when you open the door, the coil is likely behind the front panel. If the drum is hidden, the coil is probably at the rear.

For a front-panel dryer, open the door fully and look for screws along the top edge of the front panel, just above the door opening. Remove these screws and set them aside in a small container so you do not lose them. Gently pull the front panel toward you—it may be held by clips at the bottom as well, so wiggle it slightly as you pull. Once the panel is free, lay it flat on a towel to avoid scratching it.

For a rear-panel dryer, unscrew the rear panel from the back of the unit. This usually requires removing four to six bolts around the perimeter. Once the panel is off, you will see the heating coil assembly mounted inside.

Unbolt the Old Heating Coil and Install the New One

Inside the dryer, locate the heater box—a metal housing that contains the heating coil. It is usually a rectangular or cylindrical chamber mounted near the drum. You will see two or three bolts holding it in place. Use your socket wrench to remove these bolts and set them aside. Gently pull the heater box toward you to expose the coil terminals.

The heating coil connects to the dryer's electrical circuit through two or three wire terminals. Take a photo of these connections with your phone before disconnecting anything—this will help you reconnect the new coil correctly. Unscrew or unclip each wire terminal and remove the old coil. If the wires are soldered rather than bolted, you may need to desolder them with a soldering iron, or you can cut the wires and splice the new ones using wire connectors rated for high heat.

Position the new heating coil in the heater box and reconnect the wires to the same terminals where the old ones were attached. Use your phone photo as a guide. If you cut wires, twist the new wire to the old wire, wrap the joint tightly with electrical tape, and cover it with a high-temperature wire connector. Bolt the heater box back into place and reinstall the front or rear panel, making sure all screws are tight.

Test the New Coil Before Running a Full Load

Plug the dryer back in or turn the breaker back on. Close the door and set the dryer to high heat for ten minutes. Do not put any clothes inside yet. Open the door after two minutes and feel the air coming out—it should be warm. After ten minutes, stop the dryer and smell inside the drum. A slight burning smell is normal for a brand-new coil, but a strong chemical smell or any visible sparks means something is wrong. Stop when ready, unplug the dryer, and check your wire connections.

If the coil heats properly and there is no burning smell after the test run, run a small load of damp towels on high heat. The dryer should dry them completely in 30 to 40 minutes. If it does, the replacement is successful.

Common Mistakes to Avoid

The most common error is reconnecting the wires to the wrong terminals. This will cause the coil to overheat, blow a thermal fuse, or fail to heat at all. Always photograph the old connections before you disconnect them, and double-check your work before plugging the dryer back in.

Another mistake is skipping the capacitor discharge step. Even if you are confident the dryer is unplugged, test it with a multimeter. A capacitor shock can cause serious injury. Do not assume the power is off—verify it.

Finally, do not reuse the old thermal fuse if it has blown. If your dryer was not heating because the fuse tripped, replacing only the coil will not solve the problem. The fuse tripped because something caused the coil to overheat—usually a clogged vent. Clean the vent duct thoroughly before running the dryer again, or the new fuse will blow too.

Frequently Asked Questions

How do I know if my heating coil is actually broken?

A broken coil produces no heat at all—the dryer runs normally but clothes stay damp and cold. If the dryer is heating but slowly, the problem is usually a clogged vent, not the coil. Check that the vent duct is clear before assuming the coil has failed. You can also use a multimeter to test the coil for continuity: if the meter shows no resistance across the coil terminals, the element is burned out.

Can I use a universal heating coil instead of ordering the exact model?

No. Universal coils vary in voltage, wattage, and terminal configuration. Using the wrong coil can cause it to overheat, fail to heat, or damage the dryer's electrical circuit. Always order the coil designed for your exact model number.

What if I accidentally touched a live wire during the repair?

Stop work when ready and seek medical attention if you felt a shock or burn. Even a small shock can cause internal injury. For future work, always use a multimeter to confirm power is off, and never skip the capacitor discharge step.

How long does a new heating coil last?

A properly installed heating coil typically lasts five to ten years, depending on how often you use the dryer and whether you keep the vent duct clean. A clogged vent forces the coil to work harder and burn out faster, so cleaning the vent every six months will extend the coil's life.

Do I need to replace the thermal fuse at the same time?

Only if it has blown. If the fuse is intact, you do not need to replace it. However, if the fuse blew before the coil burned out, the coil failure was caused by restricted airflow. Clean the vent duct thoroughly before running the dryer again, or the new coil will overheat and the fuse will blow again.