Few things are more frustrating than preparing a meal only to discover your oven isn’t heating. When a Frigidaire oven fails to reach the correct temperature, the cause can range from a simple setting error to a mechanical fault. Understanding what’s behind the issue helps you decide whether it’s something you can address yourself or if it’s time to call a professional.

Control Lock or Demo Mode Activated

Frigidaire ovens often include modes that disable heating completely.

• Demo Mode: This setting is used for store displays so the oven can appear functional without producing heat. To turn it off, open the Settings or Options menu, select “Demo Mode,” and choose Off.
• Control Lock: This feature prevents accidental use by locking the controls. Look for a lock icon on the display, then press and hold the “Lock” or “Control Lock” button until it disappears.

If disabling these modes doesn’t restore heat, the problem could involve the touchpad or control board, which may require replacement.

Oven Door Not Closing Properly

A door that doesn’t close or seal correctly allows hot air to escape, preventing the oven from maintaining temperature.

• Inspect the latch: A bent or misaligned latch won’t secure the door tightly. Avoid over-tightening screws—this can worsen the issue.
• Check the gasket: Grease and crumbs along the seal can stop the door from sealing properly. Clean the edges and replace the gasket if it’s cracked or worn.

A tight seal ensures even heating and helps food cook efficiently.

Power Supply Issues

If your oven lights up but doesn’t heat, it might not be getting full power.

• Electric models need a 240-volt supply. If one leg of power is missing, the controls will work but the elements won’t heat.
• Gas models still need electricity for ignition and control systems.

Do not move or unplug the oven yourself, as these units are heavy and often hardwired. Electrical testing should be performed by a qualified technician.

Faulty Temperature Sensor or Thermostat

A malfunctioning temperature sensor can send incorrect readings to the control board, causing the oven to underheat or shut off early.
Signs of failure: unusually long preheating, uneven cooking, or undercooked food.
A technician can test the sensor with a multimeter and replace it if the readings are inaccurate. Occasionally recalibration can fix the issue, but it’s best done by a professional.

Failed Heating Element or Igniter

If your Frigidaire oven still won’t heat after checking settings and power, the most likely cause is a defective heating element or igniter.

• Electric ovens: The bake element at the bottom should glow red during operation. If it doesn’t, or if it looks damaged, replacement is necessary.
• Gas ovens: A weak or broken igniter won’t light the gas, leaving the oven cold. If ignition takes longer than 90 seconds—or never happens—the igniter likely needs replacing.

Because both parts involve electricity and gas, repairs should only be handled by certified professionals.

When to Seek Professional Repair

If you’ve confirmed that the door, settings, and power supply are all fine but your oven still won’t heat, it’s time for expert service. Modern Frigidaire ovens use advanced sensors and control boards that require specialized tools for accurate diagnosis. A trained technician can safely identify the cause, replace faulty parts, and ensure the oven performs correctly.

How to Prevent Future Heating Problems

Regular maintenance keeps your oven reliable and extends its lifespan:

• Clean frequently: Grease and debris can affect temperature sensors and seals.
• Close gently: Avoid slamming the door to prevent damage to hinges and the gasket.
• Inspect the seal: Replace the gasket if it shows signs of cracking or wear.
• Schedule yearly maintenance: Routine checkups help detect weak elements or igniters early.
• Limit self-clean cycles: Excessive heat during self-cleaning can stress internal parts—use mild cleaners instead.

Keeping up with basic care ensures your oven heats evenly, cooks efficiently, and lasts for years to come.