Dryer Not Heating – What Part Fixes This Problem?
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Understanding the Problem
A dryer that tumbles but produces no heat is a common issue with a handful of likely causes. Electrical dryers usually fail from a blown thermal fuse, faulty heating element, or a bad high-limit/cycling thermostat; gas dryers commonly fail from a bad igniter or worn gas valve coils. Before replacing parts, follow these numbered diagnostic and repair steps to find the true cause and fix it. 1) Safety first - Unplug the dryer (and shut off gas supply for gas dryers) before opening panels. Turn off circuit breakers if needed. 2) Quick checks (do these first) - Confirm the dryer is getting full power: verify the breaker(s) are on and the outlet is supplying correct voltage (240V for most electric dryers; 120V for small combo units). If the drum turns but heating is absent, power is likely OK. - Clean the lint screen and remove lint from the exhaust path. Restricted venting can drop or kill heat output. - For gas dryers: confirm the gas shutoff valve is open and you smell no gas (if you smell gas, stop and call the gas company). 3) Determine electric vs gas dryer symptoms - Electric: usually a failed heating element, blown thermal fuse, or thermostat. - Gas: usually a failed igniter, gas valve coils, or flame sensor. 4) Test vent restriction - Disconnect the exhaust duct at the back and run the dryer on a timed cycle. If it heats normally with the duct disconnected, clean or replace the duct/vent and check outside vent hood. 5) Test thermal fuse (electric dryers are very commonly fixed by replacing this) - Locate the thermal fuse on the blower housing or exhaust duct (check service sheet/model manual). Remove the two wires and test for continuity with a multimeter. If open (no continuity), replace the thermal fuse. 6) Test the heating element (electric) - Access the heating element assembly (usually through the rear panel or front panel depending on model). Inspect element coils for breaks or visible burn marks. Test continuity across the element terminals with a multimeter. If open, replace the heating element assembly. 7) Test thermostats and high-limit thermostat (electric) - Test cycling thermostat(s) and high-limit thermostat(s) for continuity. Replace any thermostat that shows no continuity. 8) Gas dryer ignition system checks - With the dryer on a timed cycle, watch the igniter through the burner access (or run an observation test per service manual): you should see the igniter glow and then gas ignition follow. If igniter does not glow or glows but no gas opens, test igniter for continuity and test gas valve coils for correct resistance per the service spec. Replace faulty igniter or coils. 9) Control and timer checks (less common) - If all heating components test good, the control board, timer, or motor centrifugal switch (that enables heating circuit) might be faulty. These are diagnosed last and typically require verifying voltage to the heating circuit during operation. 10) Replacement and reassembly steps (generic guide) - Unplug dryer and turn off gas. - Remove access panel(s) to reach the failed part (rear or front panel removal often requires removing screws and possibly the top panel). - Remove wiring (take photos or label wires), unfasten mounting screws, replace part with OEM or recommended aftermarket part, reattach wires, reassemble panels. - Reconnect power (and gas), run test cycle and verify heat. Safety note: Always disconnect electrical power before opening panels and be cautious with gas lines. If you smell gas or are uncomfortable diagnosing gas ignition parts, stop and hire a qualified technician.
Common Symptoms
Drum tumbles but no heat; dryer runs then stops producing heat; takes many cycles to dry; gas dryer tumbles but no flame visible; dryer starts and then shuts down when heat should be on.
Common Causes
- Blown thermal fuse or thermal cutoff
- Broken/open heating element (electric) or failed igniter/gas valve coils (gas)
- Blocked venting or clogged lint screen causing overheating trips
Popular Parts That Fix This Problem
These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at ProsourceParts.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
Begin by testing the thermal fuse and heating element with a multimeter — the thermal fuse is the single most common cause for an electric dryer that tumbles but produces no heat.
Frequently Asked Questions
How do I test the dryer heating element or thermal fuse?
Unplug the dryer and access the component. Use a multimeter set to continuity/ohms. For the thermal fuse: disconnect its two wires and check for continuity—if none, the fuse is blown and must be replaced. For the heating element: check continuity across the element terminals; open (infinite resistance) means a bad element. Also visually inspect the element coils for breaks or burn marks.
My gas dryer tumbles but there is no flame — what should I check first?
Confirm the gas shutoff valve is open and the dryer has power. Then check whether the igniter glows during a start cycle; if it doesn't glow, test the igniter for continuity and replace if open. If the igniter glows but no flame follows, test the gas valve coils (solenoids) — if weak or open, they won't open the gas valves and must be replaced. If you detect a gas smell, stop and contact the gas company or a pro.
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