Dryer Not Heating? Here Is Why — and How Much It Costs to Fix

A dryer that runs but produces no heat is one of the most common appliance repair calls we receive in Denver. The good news: most no-heat dryer problems are caused by inexpensive parts and are straightforward to fix. Here is a systematic guide to diagnosing the problem.

Before assuming a mechanical failure, check these two things:

Is it a gas or electric dryer? Electric dryers require a 240V outlet with two circuit breakers. If one breaker trips, the dryer will run (on 120V) but will not heat. Check your breaker panel and reset both breakers for the dryer circuit.

Is the vent clogged? A severely clogged dryer vent can trigger the thermal fuse (a safety device that cuts power to the heating element when the dryer overheats). Before replacing any parts, disconnect the vent hose and run the dryer. If it heats without the vent connected, the vent is the problem.

The thermal fuse is a one-time safety device that blows when the dryer overheats — usually due to a clogged vent. Once it blows, it must be replaced. It cannot be reset.

How to tell: The dryer runs but produces zero heat. No error codes.

Repair cost: $75–$150 parts and labor. The fuse itself costs $5–$15; the labor is the majority of the cost.

Important: Always clear the vent before replacing the thermal fuse, or the new fuse will blow again.

The heating element is a coiled wire that heats the air inside the drum. Over time, the coil can break, cutting off heat entirely.

How to tell: The dryer runs and tumbles normally but produces no heat. You can sometimes see a break in the coil if you access the heating element housing.

Repair cost: $100–$200 parts and labor. This is one of the most common dryer repairs and is well worth fixing.

Gas dryers use electromagnetic coils to open the gas valve during the heating cycle. When these coils fail, the igniter will glow but the gas will not ignite.

How to tell: You can see the igniter glow orange through the burner opening, but the flame never lights.

Repair cost: $100–$200 parts and labor.

The igniter lights the gas burner. If it fails, the gas valve will not open and the dryer will not heat.

How to tell: No glow visible through the burner opening when the dryer is running.

Repair cost: $100–$175 parts and labor.

The cycling thermostat regulates the temperature inside the drum by cycling the heating element on and off. A failed thermostat can cause the dryer to run cold (or, in rare cases, run too hot).

Repair cost: $100–$175 parts and labor.

Less common but more expensive. If the control board is not sending the signal to activate the heating circuit, no other component will work correctly.

Repair cost: $175–$350 parts and labor.

In Denver's dry climate, lint accumulates in dryer vents faster than in humid climates. A clogged vent is not just a cause of no-heat problems — it is a leading cause of house fires.

Signs your vent needs cleaning:

• Clothes take more than one cycle to dry
• The dryer feels hot to the touch on the outside
• The laundry room feels humid or smells musty after a cycle
• The dryer shuts off before the cycle is complete

Vent cleaning costs $75–$150 and should be done every 1–2 years in Denver homes.

Dryers are among the most cost-effective appliances to repair. A new standard dryer costs $400–$800. Most dryer repairs cost $75–$250 — well under the 50% replacement threshold. Even a control board replacement ($175–$350) is usually worth it on a dryer that is less than 10 years old.

We carry heating elements, thermal fuses, and gas valve coils for all major brands on our trucks. Most dryer repairs are completed in a single visit.

Call (720) 333-0874 for same-day service across Denver metro.