Kenmore Gas Dryer Not Heating: Igniter & Proactive Thermal Safety Sensor Overhaul in San Marcos

When a front-load clothes dryer spins smoothly for an entire hour but leaves heavy bedding ice cold, the problem is almost always electrical, not gas supply. We recently took a service call in San Marcos where a metallic-finish Kenmore Elite gas dryer stopped producing heat. The digital control console powered on with its signature chime, the drum rotated quietly, but the burner funnel never lit. Dealing with a Kenmore gas dryer not heating requires understanding how the ignition circuit protects the home: if the hot surface igniter cannot draw proper current, the safety coils on the gas valve will never open.

In a modern Kenmore gas clothes dryer, the gas valve does not utilize a pilot light or a continuous electronic spark. Instead, it relies on a silicon carbide hot surface igniter wired in a series loop with a radiant flame sensor and dual solenoid valve coils.

For the primary gas valve to open, the igniter must heat up to over 2,000°F until it radiates a bright yellow glow. As the carborundum element heats, its internal electrical resistance drops, allowing amperage to ramp up to approximately 3.2 to 3.6 amps. That specific electrical current flow is what energizes the secondary coil inside the gas valve. If the igniter element develops microscopic thermal cracks or burns out completely, electrical resistance goes to infinity (open circuit). Without that current draw, the safety valve stays firmly locked shut, preventing unburned raw gas from entering the drum.

To isolate the electrical failure, our technician stripped down the front cabinet and pulled the drum to access the lower burner funnel:

When an igniter burns out on a dryer that is five to eight years old, the cycling thermostat and high-limit thermal safety cutoffs have endured identical thermal fatigue.

Rather than replacing only the broken igniter—which often results in a frustrating callback a few months later when a tired bimetal thermostat disc finally trips open—we recommended a complete thermal overhaul during this single visit. By replacing the high-limit sensor and the exhaust cycling thermostat alongside the brand-new OEM igniter, the customer eliminated future labor costs and renewed their dryer's heating system in one streamlined repair.

If your appliance takes multiple cycles to dry or tumbles without producing warm air, scheduling prompt [gas dryer repair in San Diego](/services/dryer-repair) keeps your gas combustion system operating safely and efficiently.

With the gas line reconnected and verified for zero micro-leaks using our electronic gas sniffer, we powered on the Kenmore Elite console and initiated a timed dry cycle:

ETS Appliance Repair provides 100% upfront pricing that delivers lasting value:

*Repair completed on-site in San Marcos, CA in approximately 65 minutes. Backed by our standard 90-day parts and labor guarantee.*

Dealing with a gas dryer that tumbles cold or takes forever to dry? ETS Appliance Repair provides priority same-day service throughout San Marcos and all North County inland communities. Call our friendly local dispatch desk to get your laundry routine running hot again.