Your oven sits at room temperature, or it climbs to 200 and stalls. The broiler might still work. The stovetop’s fine. So why won’t the oven heat?
Almost every no-heat oven comes down to one of three parts: the igniter (gas), the bake element (electric), or the control board (either type). Here’s how to tell which, and where the safe checking stops and a service call starts.
Narrow it down first
Two questions before you touch anything.
Gas or electric? Look for a gas line behind the range or a 240V outlet. Gas ovens light a burner; electric ovens glow a metal element.
Does the broiler work but not bake, or the other way around? That split is a strong clue. Bake and broil use different elements or igniters, and a working one proves the oven has power and a live board. The dead one points straight at that component.
Gas oven: usually the igniter
On a gas oven the most common no-heat cause is a weak igniter. It does two jobs, glow hot and draw enough current to trip the safety valve open. Aged, it still glows but pulls less current, so the valve never opens. You smell a little gas, see a dull orange glow, and the burner never catches.
Safe check: set the oven to bake and look through the slot at the bottom of the cavity. A good igniter glows bright white-orange and lights within 60 to 90 seconds. A dull, lazy orange that never lights means it’s done. Don’t keep cycling it, raw gas builds up first.
This is a replacement, not a cleaning. Igniters are brittle and crack easily, and the connector sits in a tight spot by the gas supply. That’s where we take over.
Electric oven: check the bake element
The floor of the cavity holds the bake element, a thick metal loop. When it fails it either stops glowing or develops a break.
Safe check, oven off and cool: open the door and look end to end. A burned-out element usually shows a blister, a split, or a bright scorch at the failure. No visible damage but still no heat? That shifts suspicion to the wiring behind it or the board, both pro territory.
When it’s the control board
If the igniter glows fine, or the element looks perfect, and the oven still won’t heat, the control board (the EOC, electronic oven control) is next. It runs the relays that feed the element or open the gas valve. A failed relay, a cracked solder joint, or a blown internal fuse leaves a cold oven, sometimes with an error code.
Boards aren’t a guess-and-swap part. They’re pricey, they fail in ways that mimic element faults, and the wrong one wastes a week. We test the board against the element and igniter circuits before condemning it, so you’re not paying for a $400 part the oven didn’t need. See how we approach these in our oven and range repair guide and our cooking appliance repair service.
A gas bake burner and igniter, lit
Where to stop and call
The visual inspection and the broil-vs-bake test are fine to do yourself. Past that:
- Anything involving the gas supply, the gas valve, or replacing an igniter
- Replacing an electric element fused to its terminals or showing scorched wiring
- A suspected control board, which needs metering before you spend on parts
Those are pro jobs. Bay Area Appliance Repair Service has been fixing Bay Area kitchens since 2021 (CSLB #1136642, BEAR #50788, BBB A+). We diagnose the actual fault, price the OEM part, and give you a written repair-or-replace call before the wrench comes out. The $75 diagnostic is credited to the repair.
Cold oven and dinner to cook? Schedule a visit or call (925) 999-4095. We cover the Bay Area from the Tri-Valley to the East Bay and Peninsula.
FAQ
Why won’t my oven heat but the stovetop works? The cooktop and oven run on separate parts. A working stovetop confirms power, so the fault is in the oven’s own igniter, element, or board.
Igniter or element? Gas: a dull glow that never lights the burner means a weak igniter. Electric: a blistered or broken bake element on the cavity floor.
Can I keep using it? No. A weak gas igniter can let raw gas pool before it lights, and a damaged element can arc. Shut it off and book service.