Samsung DWB80 Dryer Heating Element Fails to Light

If you own a Samsung DWB80 dryer and notice that the heating element does not ignite, you’re not alone. This issue is a common frustration for many homeowners, and while it can be disconcerting, it is usually solvable with a systematic approach. The following guide will walk you through understanding the problem, diagnosing the root cause, and, if needed, replacing the heating element. The instructions are designed for the average DIY homeowner, but if you are uncomfortable working with electrical components, we strongly recommend seeking professional help.

Why the Heating Element Might Fail to Light

The heating element in a dryer is the heart of the drying cycle. When it fails to light, the dryer will not produce heat, and clothes will remain damp. Several factors can prevent ignition:

• Power Issues – The dryer might not be receiving enough voltage, or the circuit could be overloaded.
• Component Failure – The heating element itself can burn out or become cracked.
• Thermostat or Temperature Sensor Problems – The control board may receive incorrect signals and prevent ignition.
• Control Board Faults – Malfunctioning electronic controls can stop the element from energizing.
• Faulty Fuse or Thermal Cutoff – A blown fuse or a tripped thermal fuse can cut the power to the element.
• Mechanical Interlocks – The door lock or other safety interlocks might be engaged, preventing the dryer from starting.

Understanding these possibilities is the first step toward a quick resolution.

Step‑by‑Step Diagnostic Process

Before purchasing new parts, it’s wise to methodically test each potential culprit. Below is a practical sequence to follow.

1. Confirm the Dryer Is Receiving Power

• Check the Power Cord – Look for frayed insulation or damage. If you spot any, replace the cord immediately.
• Test the Outlet – Use a voltage tester or plug a different appliance into the same outlet to confirm that 240 V (for a standard dryer) is present.
• Inspect the Plug – The two prongs must be firmly seated. A loose connection can lead to intermittent power.

A simple voltage check will rule out power supply issues early on.

2. Inspect the Lint Filter and Ventilation System

• Clean the Lint Filter – A clogged filter forces the dryer to work harder, potentially triggering safety features.
• Verify the Vent Hose – Ensure the vent is not kinked, crushed, or blocked. A poor airflow can cause the temperature sensor to trigger a safety cutoff.

A well‑ventilated dryer operates more reliably and reduces stress on internal components.

3. Test the Heating Element with a Multimeter

1. Unplug the Dryer – Safety first. Never work on a dryer that is plugged in.
2. Locate the Heating Element – It’s usually a coiled metal rod inside the dryer drum area. Consult the user manual for exact location.
3. Disconnect the Element Wires – Separate the wires from the element terminals.
4. Set the Multimeter to Ohms (Ω) – This measures resistance.
5. Measure Resistance – Place one probe on each terminal of the element. A healthy element typically shows a resistance value between 5 Ω and 10 Ω. An infinite reading (no continuity) indicates the element is burnt out.

If the resistance is off, you’ve identified the culprit. If the element reads fine, move to the next step.

4. Check the Temperature Sensor and Thermostat

• Locate the Sensor – Often near the heating element or on the dryer’s heat shield.
• Test with a Multimeter – The sensor should have a resistance of around 1 kΩ at room temperature. Use the manufacturer’s specifications as a reference.
• Inspect the Thermostat – Many dryers have a high‑temperature thermostat that disconnects power if overheating occurs. Test its continuity in the off position.

A faulty sensor or thermostat can send the wrong signal to the control board, preventing the element from lighting.

5. Examine the Control Board and Fuse

• Access the Control Board – It is usually behind the back panel. Disconnect the power before removing any parts.
• Look for Visible Damage – Blistered or scorched components often indicate a fault.
• Test the Fuse – If your dryer has a dedicated fuse for the heating element, check its continuity. Replace if necessary.

The control board orchestrates all dryer functions. A fault here can disable the heating element even when the element itself is fine.

6. Verify the Door Lock and Safety Interlocks

• Open the Dryer Door – Ensure the lock clicks into place and the indicator light turns on.
• Test the Interlock Switch – Some dryers have a switch that physically stops the cycle if the door is open. If this switch is stuck, the dryer will not start.

If the door lock or interlock is engaged or defective, the dryer’s safety systems will block the heating element from turning on.

Replacing the Heating Element

If the diagnostics point to a faulty heating element, replacing it is usually straightforward. Here’s how:

Tools and Materials Needed

• Replacement heating element (match your model number)
• Adjustable wrench or socket set
• Screwdriver (Phillips or flathead, as required)
• Multimeter (for final testing)
• Safety gloves and goggles

Step 1 – Disconnect Power

Before opening the dryer, unplug the appliance or switch off the circuit breaker. Confirm that no voltage is present by touching the wires with a tester.

Step 2 – Remove the Back Panel

• Unscrew the Screws – Use a screwdriver or wrench to remove the screws holding the panel.
• Lift the Panel – Gently lift it away, exposing the heating element and the control board.

Step 3 – Detach the Heating Element

• Unscrew the Element – The element is typically fastened with two screws on each side. Remove them carefully.
• Disconnect the Wires – Pull the wire connectors off the terminals. Take note of which wire goes where; you can label them or photograph the arrangement.

Step 4 – Install the New Element

• Attach the Wires – Connect the new element’s terminals to the same wire positions as before.
• Secure with Screws – Tighten the screws firmly but avoid overtightening, which can crack the element.
• Check Alignment – Ensure the element sits evenly and does not rub against the drum.

Step 5 – Reassemble the Dryer

• Replace the Back Panel – Slide it back into place and screw it firmly.
• Reconnect Power – Plug the dryer back in or switch the breaker on.

Step 6 – Final Test

• Run a Short Cycle – Select a quick or medium cycle to test the new element.
• Observe the Heating – The dryer should heat the drum. Use a thermometer or touch the drum’s outer shell (once it has cooled) to confirm it’s hot.

If the dryer heats correctly, the replacement was successful. If it still does not light, re‑examine the previous diagnostic steps for any missed issues.

Preventive Maintenance Tips

Even after a fix, you can reduce the likelihood of future heating element failures by practicing good maintenance:

• Keep the Lint Filter Clean – Change or wash the filter regularly.
• Inspect the Vent Hose Monthly – Look for bends or blockages.
• Perform an Annual Safety Check – Test the door lock and interlock switches.
• Avoid Overloading – Large loads can overwork the heating element.
• Use the Right Detergent – Excessive suds can cause lint buildup and overheating.

Routine care helps prolong the life of the heating element and other dryer components.

Frequently Asked Questions

Why does my Samsung dryer keep shutting off during a cycle?

A common reason is an overloaded heating element or a faulty thermostat. It could also be the temperature sensor detecting overheating and cutting power.

Can I use a regular heating element for my Samsung DWB80 dryer?

No. Dryers are designed to use a specific element rated for their voltage and current. Using a mismatched element can cause electrical hazards or damage the appliance.

Is it safe to replace the heating element myself?

Yes, provided you follow safety precautions. Unplug the dryer, wear protective gear, and avoid handling live wires.

What if my dryer still doesn’t heat after replacing the element?

Re‑check the wiring connections, the thermostat, and the control board. Sometimes a faulty control board can mask a good element.

How long does a Samsung DWB80 dryer’s heating element last?

With proper care, the heating element can last 8‑12 years. However, usage patterns and maintenance affect longevity.

Final Thoughts

A heating element that fails to light can be a sign of a variety of underlying problems. By systematically checking power supply, airflow, component continuity, and safety interlocks, you can identify the root cause without unnecessary expense. If the element itself is at fault, replacement is a straightforward process that most homeowners can handle with a few basic tools.

Remember that safety is paramount. If at any point you feel unsure about handling electrical components, seek assistance from a qualified appliance technician. Proper maintenance, timely repairs, and awareness of your dryer’s operation will keep your appliance running efficiently and extend its useful life.