Your dryer is spinning. The timer counts down. But when the cycle ends, everything is still damp. The drum works. The heat doesn't.
This is one of the most common dryer calls we get. And it almost always traces back to one of three things: a blocked vent, a blown thermal fuse, or a failed heating element. Here's how to work through them — in order.
1. Check the Vent First
This is the one you can do right now. No tools required.
Pull the dryer away from the wall. Find the vent hose running from the back of the machine to the wall. Disconnect it and look inside. If you see a dense gray plug of lint, that's your problem.
A clogged vent traps hot air inside the drum. Most dryers have a thermal safety switch that cuts heat when airflow is blocked — the machine keeps running, but the burner or element shuts off. It's a protection feature. It's working exactly as designed. The vent just needs to be clear.
Also check the breaker. Electric dryers run on a 240V double-pole breaker — two breakers sharing one handle. If one leg trips, the motor runs but the heating circuit loses power. Open the panel and reset both sides. If it trips again immediately, stop and call — there's an electrical issue that needs a real tech.
These are the two things you can reasonably verify on your own. If neither is the cause, you're moving into component territory.
2. Test the Thermal Fuse
The thermal fuse is a one-shot safety device. It blows once — to protect the machine from overheating — and never resets.
It's usually a small white component mounted near the exhaust duct inside the dryer cabinet. When it's gone, the machine runs but produces zero heat. No partial heat. Zero.
Checking it requires a multimeter set to continuity mode. One probe on each terminal. A working fuse gives you a closed circuit — you'll hear a beep. A blown fuse reads open. No continuity, no heat.
This is a simple test, but it does require opening the dryer cabinet. If you're not comfortable doing that, this is where a tech earns their visit. Replacing the fuse itself is inexpensive. What matters is also finding out why it blew — usually a restricted vent, which brings you back to step one.
3. The Heating Element
If the vent is clear and the thermal fuse is intact, the heating element is the next suspect.
The element is a coiled wire inside a metal housing. Over time — especially on machines that run heavy loads frequently — that coil can burn out or break. When it breaks, the circuit opens and no heat is generated. The drum still spins. Everything else still works.
Testing it also requires a multimeter and continuity check across the element terminals. A healthy element reads closed. A broken element reads open.
Replacing a heating element is a real repair. It involves disassembly, part sourcing (the right element for your make and model), and reassembly with proper connections. This is not a YouTube-afternoon project unless you've done appliance work before.
What This Tells You
Three possible causes. One diagnostic order.
Vent blockage — you can check and fix it today. Lint brush kit costs under $20.
Thermal fuse — you can test it if you have a multimeter. Replacement is cheap. Finding the root cause matters more than the fix itself.
Heating element — needs a tech. The test is simple; the repair requires the right part and proper reassembly.
If you've cleared the vent, confirmed the breaker is set, and the dryer still won't heat — that's the call to make. We stock common heating elements and thermal fuses on the van. Most repairs like this get handled in one visit.
Call 786-869-3888. Same-day visits available when you call before 2 PM.