Gas Dryer Won't Start But Has Power (Troubleshooting Guide)

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Quick answer
Confirm the symptom
Tools and prep
Step-by-step troubleshooting
Common causes table
Parts matching
When to call a pro
FAQ
Related guides

Quick answer

If your gas dryer has power but won't start, check the gas supply valve, igniter, and thermal fuse. Ensure the dryer is properly leveled and the lint screen is clean. If the igniter glows red but doesn't ignite, it may need replacement.

Confirm the symptom

Dryer has electricity (lights, display work)
Dryer does not heat or run
No gas smell when attempting to start

Tools and prep

Screwdriver set
Multimeter
Flashlight
Lint brush
Work gloves
Turn off gas supply before inspecting gas components
Unplug dryer or turn off circuit breaker

Step-by-step troubleshooting

Check Gas Supply Valve
Do: Locate the gas valve near the dryer and ensure it's fully open.
Observe: Gas valve is open and not obstructed.
Means: Gas supply is active.
Next: Proceed to next step.
Inspect Igniter
Do: Remove the dryer's rear panel and locate the igniter. Use a multimeter to check for continuity.
Observe: Igniter glows red when the dryer is turned on but doesn't ignite gas.
Means: Igniter is faulty or worn out.
Next: Replace the igniter.
Check Thermal Fuse
Do: Locate the thermal fuse (usually near the exhaust duct) and test it with a multimeter.
Observe: Multimeter shows no continuity.
Means: Thermal fuse is blown.
Next: Replace the thermal fuse.
Clean Lint Screen and Vents
Do: Remove lint from the lint screen and clean the exhaust duct thoroughly.
Observe: Lint is removed and airflow is improved.
Means: Improved airflow may resolve ignition issues.
Next: Test the dryer again.
Verify Dryer Leveling
Do: Check if the dryer is level using a spirit level.
Observe: Dryer is not level and rocks slightly.
Means: Uneven dryer can prevent proper operation.
Next: Adjust the leveling legs and test again.
Test Gas Valve Solenoid
Do: Use a multimeter to test the gas valve solenoid for continuity.
Observe: No continuity or low resistance reading.
Means: Gas valve solenoid is faulty.
Next: Replace the gas valve solenoid.
Check Dryer Vent Hose
Do: Inspect the vent hose for kinks or blockages.
Observe: Vent hose is kinked or partially blocked.
Means: Restricted airflow can prevent proper operation.
Next: Straighten or replace the vent hose.

Common causes

Cause	Likelihood	Difficulty	Part often needed
Faulty Igniter The igniter may be worn out or not glowing properly, preventing gas ignition.	Common	Easy–Medium	Igniter
Blown Thermal Fuse A blown thermal fuse cuts off power to the dryer to prevent overheating.	Common	Easy	Thermal Fuse
Gas Supply Valve Closed The gas valve may be partially or fully closed, preventing gas flow.	Sometimes	Easy	Gas Valve
Clogged Lint Screen or Vents Blocked airflow can cause overheating and prevent proper operation.	Common	Easy	Lint Screen, Vent Hose
Faulty Gas Valve Solenoid The solenoid may not be opening the gas valve properly.	Sometimes	Medium	Gas Valve Solenoid
Dryer Not Level An unlevel dryer can prevent the door switch from engaging properly.	Sometimes	Easy	Leveling Legs
Faulty Door Switch A faulty door switch may prevent the dryer from starting.	Rare	Medium	Door Switch

Parts matching

Common replacement parts for a gas dryer that won't start but has power include:

Igniter
Thermal Fuse
Gas Valve Solenoid
Lint Screen
Vent Hose
Leveling Legs
Door Switch

Always refer to your dryer's manual for specific part numbers and compatibility.

When to call a professional

If the igniter glows but gas does not ignite after replacement
If you smell gas and cannot identify the source
If the thermal fuse blows repeatedly after replacement
If the gas valve solenoid tests fine but gas still doesn't flow
If you're unsure about handling gas components or electrical testing

FAQ

Why does my gas dryer have power but won't heat?

This is often due to a faulty igniter, blown thermal fuse, or a closed gas supply valve. Check these components first.

Can a clogged lint screen cause a gas dryer not to start?

Yes, a clogged lint screen or vent can restrict airflow, leading to overheating and triggering safety mechanisms like the thermal fuse.

How do I know if the thermal fuse is blown?

Use a multimeter to test the thermal fuse for continuity. If there's no continuity, the fuse is blown and needs replacement.

Is it safe to replace the igniter myself?

Yes, if you follow safety precautions like turning off the gas and electricity. However, if you're unsure, consult a professional.

Why would the dryer start after cleaning the lint screen?

Improved airflow after cleaning can resolve overheating issues, allowing the dryer to function properly again.