Dryer Ignitor Fails — What Part Fixes the Dryer Not Heating?
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Understanding the Problem
The ignitor in a gas dryer is the small, fragile element that glows and opens the gas valve to produce flame. When it fails the dryer may tumble but will not produce heat, or you may hear repeated clicking as the control tries to light the burner but the flame never establishes. Because the ignitor is exposed to vibration and thermal cycling, the filament or ceramic can crack or the element can lose continuity over time. A failed ignitor often looks intact but no longer heats when the dryer calls for heat. Other components (flame sensor, gas valve coils, thermal fuses or thermostats, wiring) can mimic ignitor failure, so confirm the cause before replacing parts. Replacing the ignitor is a common, low-cost repair that usually restores heating when the ignitor is the root cause.
Common Symptoms
Dryer tumbles but no heat; audible clicking when timer calls for heat; glowing element is absent; dryer lights and control function normally otherwise.
Common Causes
- Ignitor filament cracked or ceramic supports broken from vibration or age
- Open thermal fuse or high-limit thermostat preventing the gas circuit from energizing
- Failed flame sensor, gas valve coils, or faulty wiring/connector preventing ignition sequence
Popular Parts That Fix This Problem
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Helpful Repair Tip
With the dryer unplugged and gas off, access the ignitor and check for continuity with a multimeter. No continuity indicates the ignitor element is cracked and needs replacement. If the ignitor shows continuity but doesn't glow while running, check the flame sensor and gas valve coils next.
Frequently Asked Questions
How do I test if the ignitor is bad?
Unplug the dryer and shut off gas. Access the ignitor assembly (usually at the burner box). Use a multimeter set to ohms/continuity: a good ignitor typically shows a low resistance (tens of ohms) or continuity; an open reading means the filament is broken and the ignitor should be replaced. Visually inspect for cracks, breaks or crumbling ceramic. If it shows continuity but doesn’t glow when running, test the flame sensor and gas valve coils next.
How much does it cost to replace a dryer ignitor and can I do it myself?
Replacement ignitors are generally inexpensive (often $20–$80 depending on brand and OEM vs aftermarket). Labor for a professional is usually 30–60 minutes. Many DIYers with basic tools can replace an ignitor themselves: unplug the dryer, shut off gas, remove the front or lower access panel, disconnect the old ignitor and wiring, and install the new unit. Always follow the service manual for your model and take safety precautions with gas and electrical components.
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