DV5451 Heating Element – How to Diagnose & Replace the Dryer Heating Element
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Understanding the Problem
If your DV5451 dryer tumbles but does not produce heat (or produces weak/erratic heat), the heating element assembly is a likely culprit. The heating element is the coil or cartridge inside the dryer that generates the heat; over time it can burn out, break, or short to the casing. Other components that commonly fail and produce the same symptoms include the thermal fuse, high-limit thermostat, and cycling thermostat. Before replacing parts, always isolate power to the dryer and perform simple tests. A visual inspection can reveal a visibly broken or burned coil. The quickest electrical test is a continuity check with a multimeter across the heating element terminals — an open reading usually means the element is failed. However, a no-heat condition can also be caused by blown thermal fuses or thermostats that should be tested in-line with the element test to avoid unnecessary replacement.
Common Symptoms
Dryer tumbles but produces no heat or very little heat; takes multiple cycles to dry; burning smell or visible arcing; dryer trips breaker or thermal fuse; dryer runs until it times out but clothes remain damp.
Common Causes
- Open or broken heating element (coil burned through or shorted to casing)
- Blown thermal fuse or failed high-limit thermostat preventing element power
- Blocked/closed venting causing overheating and repeated element/thermostat failures
Popular Parts That Fix This Problem
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Helpful Repair Tip
To confirm the heating element, unplug the dryer, remove the access panel, and test the element for continuity with a multimeter. If the element shows open (infinite resistance) between its terminals, it needs replacement. Also test the thermal fuse and thermostats in the same circuit — a blown thermal fuse will read open and will prevent heating even if the element is good.
Frequently Asked Questions
How do I test the heating element on my DV5451 dryer?
Turn off and unplug the dryer. Access the heating element housing (usually behind the rear panel or front lower panel depending on model). Remove the element assembly wiring and use a multimeter set to the lowest ohms range. Measure continuity between the element's two power terminals—working elements normally show low resistance (a few ohms to a few dozen ohms) not infinite. Also test for continuity between each terminal and the metal frame: any continuity to ground indicates a short and a failed element. If the element is open (infinite) or shorted to ground, replace it. Also check the thermal fuse and thermostats in series with the element — a blown thermal fuse will read open and must be replaced.
Can I replace the heating element in my DV5451 myself?
Yes, replacing a dryer heating element is a DIY-friendly job if you are comfortable working with appliances. Always disconnect power first. Remove the access panel(s), note and label wiring, unfasten the element assembly, swap with the new part, and reconnect wires. While you have the dryer open, inspect and clean the lint from the housing and check the venting to ensure proper airflow. If you’re unsure which part number fits your DV5451, copy the model and serial from the dryer’s rating plate (usually inside the door or on the back) and order the exact OEM replacement. Call a professional if you encounter damaged wiring, unclear wiring connections, or if the dryer is still under warranty.
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