Oven Not Heating Properly: Common Causes and Solutions

Nothing is more frustrating than an oven that doesn't heat properly, especially when preparing an important meal. Understanding the common causes helps you determine if this is a simple fix or requires professional attention.

For gas ovens, the most common cause is a faulty igniter. Unlike stovetop burners, oven igniters must glow hot enough to open the gas valve. A weak igniter may glow but not reach the temperature needed to allow gas flow.

Electric ovens rely on heating elements that can fail over time. If your oven heats unevenly or not at all, visually inspect the bake and broil elements for visible damage, breaks, or blistering.

Temperature calibration issues cause many heating complaints. Over time, the oven thermostat can drift from its factory settings. Most ovens allow for calibration adjustments in the settings menu.

A faulty temperature sensor provides incorrect readings to the control board. In high-end ovens like Wolf and Thermador, these sensors are extremely precise and should be replaced with OEM parts.

The oven door gasket ensures heat stays inside the cavity. A damaged or worn gasket allows heat to escape, making it difficult to reach and maintain proper temperatures.

In convection ovens, the fan motor is essential for even heat distribution. If the fan isn't operating, you'll notice significant temperature variations throughout the oven cavity.

Electronic control boards in modern ovens manage all functions. A failing board may cause erratic heating, incorrect temperature readings, or complete failure to heat.

For Wolf, Viking, and other professional-style ovens, ensure the oven is properly calibrated for your altitude. Phoenix's elevation of approximately 1,100 feet can affect oven performance if not properly adjusted.