How To Change A Heating Element In A Kenmore Dryer: The Professional DIY Guide
Replacing a Kenmore dryer heating element requires disconnecting the unit from its 240-volt power source, accessing the heater housing—typically located behind the rear panel or under the front drum—and swapping the failed nickel-chromium coil assembly. This repair generally takes 45 to 90 minutes and is confirmed successful when a multimeter shows a resistance reading between 15 and 50 ohms across the new terminals.
Pre-Repair Planning and Tool Requirements
Before attempting to service a Kenmore dryer, it is essential to understand that Kenmore appliances are manufactured by various partners, most notably Whirlpool and LG. Consequently, the internal architecture of your machine may vary. Identifying whether your dryer is a rear-access model (common in older 70 and 80 Series) or a front-access model (common in Kenmore Elite and HE series) dictates the scope of the disassembly. Regardless of the model, the heating element functions on the principle of electrical resistance: high-voltage current passes through a nichrome wire coil, generating the thermal energy required to evaporate moisture from your laundry.
Failure of the heating element is often the result of mechanical fatigue caused by thousands of expansion and contraction cycles, or localized overheating due to restricted airflow. If your dryer spins but produces no heat, the heating element is the primary suspect, though the thermal fuse and high-limit thermostat must also be inspected as part of a comprehensive diagnostic workflow.
Essential Equipment and Benchmarks
- Required Tools: Nut driver set (1/4-inch and 5/16-inch are standard), Phillips and flat-head screwdrivers, needle-nose pliers, and a digital multimeter.
- Safety Gear: Work gloves (to protect against sharp galvanized steel edges) and safety glasses.
- Mandatory Standards: You must ensure the dryer is completely unplugged. A dryer operates on a double-pole circuit breaker providing 240 volts; contact with live terminals can be fatal.
- Estimated Duration: 45 to 75 minutes for intermediate DIYers.
- Estimated Budget: $25 to $75 for the replacement part, depending on whether you purchase the OEM (Original Equipment Manufacturer) assembly or a high-quality aftermarket equivalent.
Step-by-Step Kenmore Heating Element Replacement
Step 1: Power Disconnection and Preparation
The most critical safety step is removing all electrical potential from the appliance. Pull the dryer away from the wall and unplug the heavy-duty three or four-prong power cord. If your dryer is a gas model with an electric ignition (uncommon for "heating element" searches but relevant for hybrid units), shut off the gas supply line.
- Slide the dryer forward to gain access to the back and the exhaust vent.
- Disconnect the flexible vent duct from the back of the dryer to allow for full movement.
- Vacuum the area behind the dryer to prevent dust ingestion into the motor during the repair.
Warning: Simply turning the dryer "off" at the console is insufficient. The heating element circuit often remains "hot" (electrically live) even when the timer is off. Always physically unplug the unit.
Step 2: Accessing the Internal Components
For the majority of Kenmore top-load matching dryers, the heating element is located in the bottom right corner when viewed from the rear.
- Remove the screws securing the rear galvanized panel using your 1/4-inch nut driver.
- Carefully lift the panel off and set it aside. Note that the edges of this panel are often razor-sharp.
- For Kenmore Elite front-load models, you may need to remove the top panel by unscrewing the rear brackets, sliding the lid back, and then removing the front control console and the front bulkhead to reach the heater box located near the bottom of the cabinet.
Step 3: Diagnosing the Failed Element
Before removing the part, use a multimeter to confirm that the element is actually broken. This prevents "parts cannon" repairs where functioning components are unnecessarily replaced.
- Set your multimeter to the lowest setting for Ohms (Ω) or the "Continuity" (beeping) setting.
- Disconnect at least one of the wires leading to the heating element terminals to prevent "back-feeding" through the rest of the circuit, which can cause a false reading.
- Place one probe on each of the two metal terminals of the heating element.
- If the meter displays "O.L." (Open Loop) or shows no change, the internal coil is broken and must be replaced. A healthy element should read between 15 and 50 ohms.
Pro-Tip: While the meter is out, check the thermal fuse (the small white plastic component usually mounted on the blower housing). If the thermal fuse is blown (no continuity), the dryer will not heat even with a brand-new element.
Step 4: Removing the Heating Element Assembly
The heating element is housed inside a metal heat shield or "can" to prevent the red-hot coils from touching the cabinet or lint.
- Label and disconnect the wires from the element terminals and the mounted thermostats. It is helpful to take a high-resolution photograph of the wiring configuration before disconnecting anything.
- Remove the mounting screw (usually a single 1/4-inch screw) that holds the heater box to the base or the heater duct.
- Slide the heater assembly downward and out of the heater duct.
- In some Kenmore models, you can replace just the inner coil, but it is highly recommended to replace the entire assembly (housing and coil) to ensure proper spacing and heat dissipation.
Step 5: Installing the New Heating Element
- Slide the new heating element assembly into the heater duct, ensuring it seats firmly into the alignment tabs at the top.
- Secure the assembly with the mounting screw you removed in the previous step.
- Reconnect the wires to the terminals. Ensure the spade connectors are tight; if they feel loose, use needle-nose pliers to gently crimp the female connector for a snug fit. A loose connection creates high resistance, which generates heat and can melt the wire insulation.
- Transfer any thermostats or sensors from the old heater box to the new one if the replacement part did not include them.
Step 6: Reassembly and Final Testing
- Replace the rear panel (or front bulkhead and panels for Elite models) and tighten all screws.
- Reconnect the exhaust vent. Ensure the vent is clear of lint; a clogged vent is the #1 cause of heating element failure.
- Plug the dryer back into the wall outlet.
- Run a test cycle on "Timed Dry" with high heat for 5 minutes. Feel the back of the dryer or the exhaust air to confirm heat production.
Dryer Heating Element Kit Fit for kenmore elite he3 heating element ...
Heating Element Specifications and Performance Data
The following table outlines the standard electrical and physical parameters for the most common Kenmore (Whirlpool-built) heating element assemblies (e.g., Part Number 279838).
| Parameter | Specification / Threshold | Significance |
|---|---|---|
| Voltage Rating | 240 Volts AC | Required input for full heat output. |
| Wattage | 5,200 - 5,400 Watts | Total power consumption during heating. |
| Resistance (Cold) | 15.0 - 50.0 Ohms | Range for a functioning nichrome coil. |
| Coil Material | Nickel-Chromium (Nichrome) | High-melting-point alloy for resistance. |
| Operational Temp | 1,100°F - 1,400°F (Internal) | Temperature of the coil itself when energized. |
| Thermal Fuse Limit | 196°F - 352°F | Varies by model; prevents fire. |
| Typical Lifespan | 8 - 12 Years | Dependent on vent cleanliness and usage. |
Troubleshooting Common Heating Failures
When a heating element replacement does not resolve the issue, or if the new element fails prematurely, investigate these real-world failure scenarios:
Scenario: The dryer produces heat but takes multiple cycles to dry clothes.
- Root Cause: Restricted airflow in the external vent wall cap or a crushed transition duct. This causes the high-limit thermostat to "cycle" the element off frequently to prevent a fire, resulting in low average temperatures.
- Actionable Fix: Clean the entire vent run from the dryer to the exterior of the home using a rotary brush kit. Ensure the vent length does not exceed 25 feet.
Scenario: The new heating element failed within one week of installation.
- Root Cause: A grounded element. If the nichrome coil sags and touches the metal housing, it will stay on constantly (even when the dryer is off) or short out immediately.
- Actionable Fix: Inspect the coil for sagging. Ensure the ceramic insulators are intact. If the coil is touching the frame, the dryer's centrifugal switch on the motor may also be welded shut.
Scenario: No heat even after replacing the element and thermal fuse.
- Root Cause: Failed centrifugal switch on the drive motor or a broken "L2" leg of the 240V power supply. Dryers can spin on 120V (L1), but require both legs (L1 and L2) to heat.
- Actionable Fix: Check your home's breaker box for a tripped double-pole breaker. Use a voltmeter at the dryer's terminal block to ensure 240V is present between the two outer terminals.
Scenario: The heating element is glowing but the drum isn't turning.
- Root Cause: Broken drive belt or failed motor. This is dangerous as the lack of airflow can cause the element to melt.
- Actionable Fix: Most modern Kenmores have a belt switch that cuts power to the motor if the belt breaks, but some older models do not. Replace the belt and check the idler pulley for seized bearings.
Frequently Asked Questions
Can I just buy the heating coil and restring the old housing?
While "restringing" kits are available and cheaper, it is generally discouraged for modern Kenmore models. The factory-assembled units have precision-spaced coils and high-quality ceramic insulators that are difficult to replicate manually, and a poorly restrung coil is a significant fire hazard.
How do I locate the exact model number on my Kenmore dryer?
The model number is typically found on a sticker inside the door well, on the back of the console, or behind the kick panel at the bottom. You need this number (usually in a format like 110.XXXXXXXX) to ensure the heating element you purchase matches the wattage and mounting requirements of your specific machine.
Why does my Kenmore dryer keep blowing the thermal fuse?
The thermal fuse is a safety device designed to fail if the dryer overheats. If it blows repeatedly, it is almost always due to a clogged lint screen, a blocked internal blower housing, or an obstructed exhaust vent that is trapping hot air inside the drum.
Is it possible for a heating element to be "partially" broken?
No, a heating element is a binary component. The coil is either continuous (allowing current to flow) or broken (stopping current). If your dryer is "warm but not hot," the issue is likely a cycling thermostat, a partial vent blockage, or one of the two 120V legs of your house power being out.
Professional Appliance Maintenance Support
Restoring your Kenmore dryer to peak efficiency ensures your home remains safe and your energy bills stay manageable. If you have completed these steps and still encounter heating issues, contact a certified appliance technician to perform a deep-system electrical diagnostic.