Broiler not working
A broiler that isn't working traces to the top heating element on electric ovens or to the broiler-specific ignition system on gas ovens — in either case, the mechanism is distinct from how the bake cycle works. On electric ovens, the broil element is a separate metal loop at the top of the oven cavity. When it fails open, the oven bakes normally but broiling does nothing. On gas ovens, broilers sometimes share the main oven burner (with a diverter routing heat upward during broil) or use a dedicated broiler burner in a separate compartment, often below the oven. A separate broiler burner has its own igniter and safety valve, both of which can fail independently. A common failure across both fuel types is a blown thermal fuse from a prior self-clean cycle — self-clean temperatures occasionally exceed the fuse rating. Check the bake function first: if baking works but broiling doesn't, the issue is broiler-specific rather than whole-oven.
Safety
Critical- Kill both breakers before broil element work: Electric ovens run on 240V circuits using two breakers. Turn off both before removing the broil element or testing terminals. Half-voltage from a single breaker is enough to cause serious shock. Verify with a multimeter before touching element terminals.
- Gas-bearing work requires a licensed professional: Broiler igniter replacement is DIY-friendly — it's an electrical component. Broiler safety valves, orifices, and gas lines are gas-bearing and restricted by local code. If the igniter glows correctly but broiling still fails, call a licensed technician for valve diagnosis; do not attempt gas valve replacement yourself.
- Broil elements reach extreme temperatures: Broil elements operate at higher surface temperatures than bake elements — up to 1500°F briefly. Surfaces stay hot for 45 minutes or longer after broiling ends. Allow full cooldown before reaching into the oven cavity. Visible-red elements are not safe to touch even briefly.
How to approach this
First confirm whether bake also fails. If both bake and broil are dead, see the broader 'oven won't heat' diagnostic. If baking works normally but broiling doesn't, the issue is specific to the broil circuit. On electric ovens, inspect the broil element visually — the metal loop at the top of the oven cavity. Look for visible breaks, blisters, or burn spots that indicate the element has failed open. Kill power at the breaker (both breakers — ovens use 240V) and test continuity across the broil element terminals; a working element reads 10-50 ohms, infinite means failed. On gas ovens, run a broil cycle and watch the broiler igniter. On separate-broiler-burner designs, the broiler is usually in a drawer compartment below the oven cavity. The igniter there should glow bright orange-white before gas flows, same as the main oven igniter. A separate safety valve feeds the broiler burner; if the igniter glows but no ignition occurs, the valve is failing. If the broil element or igniter tests good, check for a blown thermal fuse near the oven's top rear — self-clean damage is a known cause.
Common causes
Ordered by how frequently each component is involved, based on OEM manual analysis.
Failed broil element (electric models)
Most commonThe broil element is the metal loop at the top of the oven cavity. It fails open from thermal cycling, often after a few years of regular broiling or after self-clean cycles push it past its thermal limit. A visible break, blister, or burned section is usually apparent. Test continuity — 10-50 ohms working, infinite failed. Replacement elements run $30-80 and install via screws at the back of the oven cavity.
Failed broiler igniter (gas models)
CommonGas ovens with a dedicated broiler burner use a separate glow bar igniter that must reach roughly 1800°F to trip the broiler safety valve. The broiler igniter can weaken over years just like the main oven igniter — still glowing but not hot enough. The broiler igniter is usually accessible through the broiler drawer compartment below the main oven. Replacement runs $30-50 and is DIY-friendly.
Blown thermal fuse (self-clean damage)
CommonSelf-clean cycles can exceed 800°F and occasionally trip the thermal fuse that protects against runaway heating. A blown thermal fuse disables the broil circuit (sometimes the bake circuit as well, depending on design). The fuse is a small cylinder usually located near the top rear of the oven cavity. Test continuity — zero ohms means intact, infinite means blown. Replacement fuses are typically $10-20.
Failed control board relay for broil
CommonThe control board uses separate relays for bake and broil. If the broil relay fails (welded closed rarely, welded open more often), the broil circuit can't energize even with a healthy element and thermostat. Diagnose after ruling out element and fuse — if everything else tests good and voltage never reaches the element terminals during a broil cycle, the relay is the suspect. Control board replacement runs $150-400.
Failed broiler safety valve (gas models)
Less commonOn gas models with a dedicated broiler burner, the broiler safety valve controls gas flow to that specific burner and opens only when the broiler igniter signals sufficient heat. If the valve fails closed (internal coil failure, valve seat corrosion), gas never flows to the broiler even with a healthy igniter. The diagnostic fork: igniter glows dull orange → replace igniter; igniter glows bright but no ignition → failed safety valve (licensed service).
Parts commonly needed
No verified parts are currently associated with this symptom for the NE59M4310SS.
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About this content. Common causes and FAQs are generated from OEM manual analysis and verified parts data. This is general guidance - your specific model may have different components or access points. Always verify with your model's documentation before ordering parts.