Oven Not Heating Properly? Gas & Electric Troubleshooting Guide

Common Causes
- Electric: Failed bake/broil element, faulty temperature sensor, bad relay/board.
- Gas: Weak igniter, faulty safety valve, incorrect air-gas mix.
- User/placement: Rack position, door seal leaks, wrong cookware.
Safe DIY Checks
Visual Element Check (Electric)
- Look for blisters/breaks; element should glow evenly. (Power off first.)
Thermometer Verification
- Place an oven thermometer; preheat to 350°F; check after 15–20 min (±15°F is typical).
Gas Igniter Observation
- You may observe a glow through vents; if it glows but burner doesn’t light, likely igniter/valve issue. (No disassembly DIY.)

When Not to DIY
- Gas leaks/smells, valve issues, live wiring, control board replacement.
- Unit under warranty.
Costs (Typical Ranges)
- Electric elements/sensors: $120–$320 installed.
- Gas igniter/valve: $180–$420+.
- Control board/relay: $280–$600+.

FAQs
- Why uneven baking? Rack placement, preheat time, fan issues (convection).
- Calibrate or repair? Minor offsets can be calibrated; large deltas suggest parts failure.
