You can replace dryer thermostats yourself in 30 to 60 minutes. Difficulty is easy. A pro charges $90 to $200.

At a glance

5 steps, 30 to 60 minutes, easy difficulty.
Tools you need are nut driver, multimeter, phone camera.
Parts to buy are cycling thermostat and/or high limit thermostat for your model (often sold as a kit with the thermal fuse).
Unplug the machine before you start.

DifficultyEasy

Time30 to 60 minutes

What you saveThermostats $10 to $25 each DIY vs $90 to $200 professionally

⚠️ BEFORE YOU START

Unplug the dryer. Label or photograph every wire, several thermostats look identical but live in different circuits.

Tools

Nut driver
Multimeter
Phone camera

Parts

Cycling thermostat and/or high limit thermostat for your model (often sold as a kit with the thermal fuse)

Step by step

1 Know which one you’re hunting

Lukewarm air or endless drying → cycling thermostat. Scorching heat → cycling stat stuck closed. Repeated thermal fuse deaths → high limit weak plus airflow. All live on the blower housing and heater can.
2 Open the service panel

Lower front or rear panel exposes the blower and heat path. The thermostats are the small round discs with two spade terminals.
3 Test each disc

At room temperature, cycling and hi limit stats should read closed (continuity). Open at room temp = failed. Replace suspects, at $10 to $25 each, replacing the set is standard practice.
4 Swap and rewire

One or two screws each. Transfer wires per your photos. Torque snug, a loose thermostat reads air temp, not duct temp.
5 Test with real heat

Run a timed high heat cycle. Heat should cycle on and off every few minutes rather than running continuously or never arriving.

🔧 WHEN TO CALL A PRO

If temps are still wrong with new thermostats, the airflow path or the element itself is the driver, see the vent and element guides, or have a pro chase it with a thermometer in one visit. If you'd rather skip it entirely, find a dryer repair pro near you

Sources

Where the safety, regulatory and warranty claims on this page come from. Repair costs are our own figures based on Arizona market rates and OEM parts pricing.

Home Fires Involving Clothes Dryers and Washing Machines National Fire Protection Association Dryer fire incidence, and failure to clean as the leading contributing factor.