Dryer Not Heating? 4 Fixes Most Landlords Can Handle

TL;DR: A dryer that runs but produces no heat is almost always caused by a blocked vent, a half-tripped 240V breaker, a blown thermal fuse, or a failed heating element or ignitor. The first two cost nothing to fix; the second two cost $15–$80 and 30 minutes if you're comfortable with a screwdriver and multimeter.

_Last reviewed: July 2026 · 6 min read_

When a tenant calls to say the dryer runs but clothes come out damp, the heating circuit has failed. The drum spins, the timer advances, the door latch works—but no warmth. Most landlords instinctively call for service, but 70% of no-heat dryer failures trace back to four problems you can diagnose in under an hour.

Okoniq Property Hub keeps a timestamped log of every appliance repair, part swap, and service call so you know when the same dryer keeps breaking—and when it's time to replace instead of repair again.

Why does a dryer run but produce no heat?

Electric dryers pull 240V across two legs of a circuit breaker. If one leg trips, the motor and controls still get 120V—enough to run—but the heating element gets zero. The dryer spins, the panel lights up, and nothing gets hot. Gas dryers face a similar split: the motor runs on 120V, but the burner ignitor needs full power to light the flame. A partial breaker trip, a blown thermal fuse, or a failed element cuts heat without stopping the drum.

Airflow blockage is the silent accelerator. A clogged lint screen or crushed vent duct starves the drum of fresh air. Internal sensors detect overheating and shut down the heating circuit as a safety measure. The dryer still tumbles—it just can't produce heat until airflow is restored. This is why cleaning the vent is the mandatory first step, not the last resort.

The thermal fuse is a one-shot safety device mounted on the blower housing or near the heating element. If the dryer overheats once—usually because of a blocked vent—the fuse blows open and never resets. The drum keeps spinning, but the heating circuit is permanently interrupted until you replace the $12 part. On gas dryers, the ignitor is the equivalent weak link: it glows but never lights the burner, or it doesn't glow at all because the coil has burned out after 2,000 cycles.

Should I clean the vent before calling anyone?

Yes. Pull the dryer away from the wall, disconnect the 4-inch flex duct, and look inside the exhaust port on the dryer and the wall opening. If you see a felt-thick layer of lint or the duct is kinked flat, you've found the cause. Vacuum both openings with a shop vac, then use a dryer vent brush kit (a 10-foot flexible rod with spinning bristles) to scrub the inside of the wall duct. Check the exterior vent cap—birds nest in them, and flapper doors rust shut.

Run the dryer empty for 10 minutes after reassembly. If heat returns, the blockage was the problem. If the drum still runs cold, move to the breaker panel. Airflow restriction causes 40% of no-heat calls, and tenants almost never think to check it. For properties with shared laundry, schedule vent cleaning every 18 months and log it in appliance maintenance records—clogged vents are the top cause of dryer fires, which makes this a liability issue as much as a repair task.

Replace any vinyl or foil accordion-style duct with rigid aluminum or semi-rigid aluminum flex. The ribbed interior of accordion ducts traps lint and restricts flow. Code in most jurisdictions now prohibits them for dryer vents longer than 8 feet or with more than two elbows.

How do I check for a half-tripped breaker?

Open your breaker panel and find the double-pole 30A breaker labeled "Dryer." Both toggles should point the same direction—fully toward the "on" side. If one toggle sits slightly off-center or feels loose, flip both toggles all the way to "off," then back to "on" together. A half-trip looks like the breaker is still on, but one leg has disconnected internally. Resetting both legs forces full contact.

If the breaker trips again within minutes of turning the dryer back on, you have a short circuit or a failing heating element drawing too many amps. At that point, unplug the dryer and call an electrician or appliance tech—the element may have cracked and is grounding against the housing. For gas dryers, the breaker is a single-pole 15A or 20A switch, so a partial trip is less common, but still possible if the panel uses tandem breakers.

This issue appears most often in older panels where breakers have cycled thousands of times. If you manage multiple units with dryers installed before 2010, add "test dryer breaker under load" to your turnover checklist. A loose breaker leg causes intermittent no-heat complaints that vanish before the service tech arrives, wasting a $90 trip charge. Logging breaker resets in your maintenance app helps you spot patterns—if the same unit's dryer breaker trips three times in six months, replace the breaker before the next tenant moves in.

How do I test the thermal fuse?

Unplug the dryer, pull it away from the wall, and remove the rear or front access panel (consult your model's service manual—most are free PDFs online). Locate the thermal fuse: a small rectangular component with two wire terminals, usually mounted on the blower housing or exhaust duct near the heating element. It looks like a ceramic resistor with metal tabs.

Disconnect both wires and set a multimeter to continuity mode (the symbol looks like a sound wave). Touch one probe to each terminal. A good fuse beeps or shows 0 ohms. A blown fuse shows infinite resistance—no beep, no reading. If blown, order a replacement using your dryer's model number. The part costs $8–$15 and snaps or screws into place. Do not bypass the fuse with a wire jumper—it exists to prevent fires.

Before you button up the panel, check why the fuse blew. If the vent duct was clogged or the exhaust cap was blocked, the new fuse will blow again within days unless you fix the airflow. For properties with coin-op or tenant-supplied dryers, consider adding a vent flow sensor ($40 on Amazon) that alerts you when backpressure rises above safe limits. Track fuse replacements in your appliance service log—if a dryer blows two fuses in a year, the issue is upstream.

What if the heating element or ignitor is bad?

For electric dryers, remove the rear panel and locate the heating element—a metal canister with a coil visible through vent slots. Disconnect the wires and test each terminal to ground (the dryer frame) with your multimeter set to resistance. A good element reads 10–50 ohms; an open (broken) element reads infinite. If you see a visible break in the coil or scorch marks on the housing, the element is toast. Replacement elements cost $25–$80 depending on brand. Installation is four screws and two wire terminals.

For gas dryers, the ignitor is a white ceramic bar mounted near the burner tube. It should glow bright orange for 30–90 seconds before the gas valve clicks open. If it glows faintly or not at all, the ignitor has weakened and can't generate enough current to open the valve. Igniters are wear items—they're good for 1,500–3,000 cycles, or about 3–5 years in a rental. A new ignitor costs $20–$50 and takes 10 minutes to swap.

Before ordering parts, snap a photo of the model and serial number plate (usually inside the door rim or on the rear panel) and cross-reference the part on appliance-parts sites. Many elements and igniters are brand-specific, and a $6 difference in width means the part won't fit. If your dryer is older than 12 years and has already had one heating element replacement, calculate total repair cost versus replacement. A mid-tier dryer costs $450–$650 new; if you're $150 into the current unit and it still needs a timer or motor, replace it and log the purchase date.

FAQ

How long should a dryer heating element last?

A typical electric dryer heating element lasts 8–15 years or 2,500–4,000 cycles, but blocked vents and overstuffed loads shorten that by half. If you're replacing elements every 3–4 years, inspect airflow and educate tenants on load size.

Can I run a dryer with a blown thermal fuse temporarily?

No. The fuse exists to prevent overheating fires. Running the dryer with a bypassed fuse risks igniting lint inside the cabinet. Replace the $12 part before the next load.

Why does my dryer heat intermittently?

Intermittent heat usually means a cycling thermostat is stuck or a breaker leg is loose. Check the breaker first, then test the high-limit and cycling thermostats (both are small disc-shaped sensors near the heating element) for continuity at room temperature.

Do gas dryers have fuses like electric dryers?

Yes. Gas dryers use the same thermal fuse design to protect against overheating, even though the flame provides heat instead of an electric coil. They also have a separate ignitor that can fail independently.

Should I replace a dryer that won't heat or repair it?

If the dryer is under 7 years old and the repair costs less than $100, fix it. If it's 10+ years old, has already had one major part replaced, and needs another $150 in labor and parts, replace it and avoid the next breakdown six months later. Track your total repair spend in maintenance logs to make this decision with data instead of guessing.

This is educational information, not professional appliance repair advice. If you're uncomfortable working with 240V circuits or gas lines, hire a licensed technician. For rental properties, always check local codes on who is responsible for appliance repairs—some jurisdictions require landlord-provided laundry to be maintained by licensed professionals.