Whirlpool dryer runs but won't heat? Start with Whirlpool's checklist

Last verified: October 22, 2026

Disclosure: Some links on this site may be affiliate links; see our disclosure. Not affiliated with Whirlpool. Safety first: unplug the dryer (or switch off both of its breakers) before you remove any panel. Electric dryers run on 240 volts. On a gas dryer, also close the gas shut-off valve. If you smell gas, don't touch switches or light anything. Leave the house and call your gas utility from outside. Gas valve and gas line work is for a qualified technician.

The drum turns, the timer counts down, and the clothes come out cold and wet. It's one of the most common appliance complaints we see. People often replace a part or two and still have no heat. Since the motor runs, the problem is on the heat side. Do the free checks first, in this order.

Step 1: The free checks (from Whirlpool)

Confirm it really isn't heating. Whirlpool's test: pick a heated timed cycle, run it empty for 5 minutes, then open the door and feel inside. If it's warm, your problem is drying performance (usually airflow), not "no heat." [1]
Was Air Only (or Air/Fluff) selected? Whirlpool notes these cycles "do not add heat to the dryer at any time during the cycle." [1]
Electric: check both breakers. Whirlpool says electric dryers need a separate 30-amp circuit with two breakers: "One circuit will operate the motor (turning the dryer drum), while the other circuit will operate the heating element. If one of these is tripped, the dryer may not heat." That's why the drum can spin with no heat. [1]
Electric: 240 volts and the power cord. Whirlpool says electric dryers need a 240-volt supply, the cord must be installed per the installation instructions, and the terminal screws at the dryer must be tight. Unplug the dryer before you check those screws. If you aren't sure about your supply, Whirlpool says to check with a qualified electrician. [1]
Gas: is the shut-off valve open? Whirlpool: "The drum of a gas dryer will turn, but the dryer will not heat if the gas shutoff valve is closed." The valve is open when the handle is parallel to the gas pipe. Also check the household fuse or breaker. [2]

Step 2: Check the vent (this is what usually blows the fuse)

Whirlpool lists the signs of a blocked or restricted house vent: long dry times, the outside of the dryer very warm to the touch, steam inside, water behind the dryer, and very little lint on the lint screen. A quick check on top-lint-screen models: pull the screen, run Air Dry or Air Fluff, and hold your hand in the lint-trap opening. Little or no air movement means the venting is probably restricted. Common causes are lint buildup, bird or rodent nests at the outside vent, and kinked or crushed duct. [3]

The U.S. Fire Administration adds: clean the lint filter before and after each cycle, clean behind the dryer where lint builds up, make sure the vent isn't damaged, crushed, or restricted, and make sure the outdoor vent covering opens when the dryer runs. [4]

Step 3: The thermal fuse and the other safety parts

Whirlpool's parts site describes the blower-housing thermal fuse this way: "If the dryer overheats, the thermal fuse blows cutting off power to the motor or the heating system. When the fuse is bad the dryer won't start or will run but not heat. The thermal fuse cannot be reset. Fuses often blow due to a clogged dryer vent." [5]

There may be more than one. Depending on the model, Whirlpool sells a blower-housing thermal fuse, a thermal fuse on the exhaust duct, and a heating-element thermal cut-off sold as a kit with a high-limit thermostat. [5] Replacing one and still having no heat is a common story. Check your model's parts list for every safety device it has.
Test, don't guess. Whirlpool notes a multimeter can be used to test the fuse, and says to always check the dryer venting when you replace a blown thermal fuse. [5] Use the test values in your model's tech sheet. We don't list ohm values or temperatures because they vary by model.
Never bypass a thermal fuse. It's there to stop a fire. If it blew, something made the dryer overheat. Fix the airflow first, or the new fuse will blow too.

What each result usually means

Electric, fuse and cut-off test good: the heating element, the thermostats, the wiring at the terminal block, or the control are next. Your model's tech sheet gives the test for each.
Gas, fuse tests good: the igniter, flame sensor, and gas valve coils are the usual suspects. Because gas is involved, have a qualified technician do gas valve work.
Drum won't turn at all: that's a "won't start" problem. On some models a blown thermal fuse cuts the motor too. [5]

Find your model number first

Parts are model-specific, and Whirlpool's manuals and tech literature are listed by model number on its Manuals & Literature page. [1] Have the model and serial number ready before you order parts or schedule service.

Other brands and other appliances

Samsung dryer? See Samsung dryer not heating: which of 3 parts to test first. Oven cold but the burners work? See gas oven not heating. On the road: RV furnace and water heater and 12V truck fridge and heater troubleshooting.

FAQ

Why does my Whirlpool dryer spin but not heat? On electric models, one of the two breakers may be tripped: one runs the motor, the other the heating element. [1] After that, the most common cause is a blown thermal fuse, often from a clogged vent. [5]

Can I reset the thermal fuse? No. Whirlpool says it cannot be reset; an open fuse must be replaced. [5]

I replaced the fuse and it blew again. Whirlpool points to airflow: a plugged exhaust vent or a damaged blower wheel. [5] Clean and check the whole vent run to the outside. [3][4]

Who do I call? Whirlpool's service scheduling (linked from its support pages) or a qualified local appliance technician. For a gas smell, call your gas utility first.

Sources

General diagnostic guidance only, not specific to any single model. Sourced from the Whirlpool support and parts pages and the USFA flyer linked above. Last verified October 22, 2026.