THE WORK ORDER

We received a service request mid-morning from a family in the Twin Lakes subdivision of Valrico, FL. Their Samsung DV42H5000EW/A3 electric dryer was failing to heat, displaying a persistent “HE” error after each cycle. The homeowner reported that loads were finishing damp and that they’d recently noticed a musty smell. Since this model is popular in Valrico homes (especially those upgraded in neighborhoods like Bloomingdale and FishHawk), this symptom can sometimes be linked to our local high humidity or electrical surges from summer storms. After confirming the unit’s model and error over the phone, we scheduled an in-person diagnostic visit the same day.

THE DIAGNOSIS

Upon arrival, the first step was to verify the error. Sure enough, as soon as we tried to start a normal drying cycle, the “HE” code flashed. The “HE” error on a Samsung dryer means “Heating Error,” typically flagged when the control board detects excessive temperature or no temperature rise at all. This can result from a failed heating element, blown thermal fuse, or bad thermistor.

Technician logic took over: to get to the root, a multimeter and clamp meter came out of the toolbox. With the dryer unplugged, we removed the top panel by unscrewing the rear screws, then slid the control panel forward to access the wire harnesses. We checked continuity across the heating element, thermal fuse (DC47-00016A), and high-limit thermostat. The heating element, which should read 10Ω (ohms) +/- 10%, gave an open circuit. That confirmed our suspicion: the element was shot.

A careful inspection revealed a thin layer of white powder around the element terminals—a telltale sign of chloride corrosion, common in Valrico homes with hard water and high humidity. In FishHawk and Bloomingdale, we’ve seen these symptoms aggravated by indoor laundry rooms that aren’t properly vented. The family also mentioned recent power flickers during a thunderstorm, which can stress older elements or control boards.

THE FIX

Once the diagnosis was clear, we briefed the homeowner and quoted them for a replacement element (Samsung OEM #DC97-14486A), thermal fuse, and a thermistor as preventive measures. While Samsung dryers are well-designed, OEM replacement parts from recent production runs feature improved resistance to local corrosion—thanks to coatings that hold up better in our muggy Valrico climate.

With everything unplugged and double-checked for safety, we removed the front panel and drum to access the heater housing. The old element was visibly burned out, confirming meter readings. We cleaned out the entire heater ductwork using a vacuum and a small brush to eliminate lint and any hard-water residue. Before installing the new element, we applied a thin layer of dielectric grease to the electrical contacts and ensured all ground wires were secure—this is a small extra step but can help mitigate minor power surges.

After reassembly, we test-cycled the dryer. The airflow vent read 185°F on a Fluke infrared gun and the drum quickly heated, signaling a solid repair. The “HE” code was gone, and the musty smell dissipated after the first empty cycle. We suggested installing a basic surge protector and discussed the benefits of semi-annual vent cleaning (especially critical in the humid Bloomingdale area, where lint buildup is much faster).

For more preventive tips, our Brandon Appliance Pros Blog offers a comprehensive maintenance checklist for all major brands.

FAQ: Samsung DV42H5000EW/A3 Dryer in Valrico, FL

Q1: What causes the “HE” (Heating Error) code on this Samsung dryer?
The “HE” error means the dryer’s sensors don’t detect a proper rise in temperature during a cycle. In Valrico, this is often due to burned-out heating elements, failed thermal fuses, or thermistors compromised by local humidity, hard-water corrosion, or even a recent power surge from our summer thunderstorms.

Q2: Why does my Samsung dryer smell musty or burn out elements faster in Valrico?
High Valrico humidity and naturally hard water (especially around the Twin Lakes and Bloomingdale areas) can accelerate corrosion inside dryer heater terminals and ducts. Running your dryer in a poorly vented or unconditioned laundry room compounds the problem. Plus, Florida’s frequent lightning can trip or fatigue sensitive electrical parts.

Q3: Can I install the updated heating element myself?
It’s technically possible if you have basic tools and follow safety protocols (always unplug before opening the unit). Use of original part HIGHLY recommended Samsung Dryer Heating Element. However, the drum and front panel must be removed for direct access, and improper reassembly can damage wire harnesses or sensors. If you’re uncomfortable with appliance wiring or you see signs of arc marks, it’s best to call a pro. We use the official service manual (Samsung DV42H5000EW/A3 User Manual) for reference to ensure safe repairs.

If you’re in Valrico—be it FishHawk, Bloomingdale, or Twin Lakes—and your Samsung dryer is flashing codes or leaving you with damp clothes, Brandon Appliance Pros is your local expert. Our team knows the unique power and climate challenges in our area and can help you get back to clean, dry laundry safely.