Why Propane Oven Not Heating Correctly: Advanced Hands-On Details and Technical Specifications

Propane ovens are essential for cooking and baking, and a malfunctioning oven can be frustrating. Several reasons can cause a propane oven not to heat correctly, including faulty igniters, damaged temperature sensors, tripped circuit breakers, and issues with the gas supply. This comprehensive guide will provide advanced hands-on details and technical specifications to help you diagnose and fix the problem.

1. Faulty Igniter

A weak or faulty igniter is the most common cause of a propane oven not heating correctly. The igniter creates a spark to ignite the gas, allowing the oven to heat up. If the igniter is weak or faulty, it may not generate enough heat to ignite the gas, resulting in an oven that doesn’t heat up.

To check the igniter, follow these steps:

  1. Ensure the oven is turned off and cooled down.
  2. Remove the bottom panel of the oven to access the igniter.
  3. Start the oven and observe if the igniter glows.
  4. If the igniter glows but doesn’t ignite the gas, it may be weak or faulty.
  5. To confirm, use a multimeter to check the amp draw through the igniter circuit. The igniter should have a resistance between 10 and 2500 ohms. If the amp draw is significantly lower than the specified value, the igniter is likely faulty and needs replacement.

2. Damaged Temperature Sensor

why propane oven not heating correctly

The temperature sensor regulates the temperature inside the oven and shuts off the gas supply when it reaches the desired temperature. If the temperature sensor is faulty, the oven may not heat up properly or may not turn on at all.

To check the temperature sensor, follow these steps:

  1. Locate the sensor, typically found at the back of the oven.
  2. Confirm that it is in its proper position and not touching the oven walls.
  3. If the sensor is touching the walls, reposition it so it no longer makes contact.
  4. If the problem persists, the temperature sensor may be damaged and require replacement. The temperature sensor should have a resistance of less than 5 ohms.

3. Tripped Circuit Breaker

A tripped circuit breaker can prevent the oven from receiving an electric current, causing it not to heat up. To check the circuit breaker, follow these steps:

  1. Locate the circuit breaker for the oven in your electrical panel.
  2. If the breaker is in the “off” position, switch it back to “on.”
  3. If the breaker trips again, there may be a more significant issue, such as damaged wiring or a faulty circuit breaker, that requires professional assistance.

4. Issues with the Gas Supply

If the gas supply is not connected or turned off, the oven will not heat up. To check the gas supply, follow these steps:

  1. Ensure the gas valve is turned on.
  2. If the valve is off, turn it on manually.
  3. If there is no gas supply, contact your gas-supply company to resolve the issue.

5. Technical Specifications

For a Whirlpool gas oven, the technical specifications for the igniter resistance are between 10 and 2500 ohms. The safety gas valve should measure less than 5 ohms of resistance. If the igniter or safety gas valve measures out of these specifications, they may need replacement.

DIY Tips

When attempting to fix a propane oven that’s not heating correctly, follow these DIY tips for safety and success:

  • Always switch off the breaker for the oven before working on it.
  • Use a multimeter to check continuity and resistance.
  • Consult the owner’s manual for model-specific information.
  • If you’re unsure or uncomfortable working on the oven, seek professional assistance.


  1. Whirlpool: What to Do If Your Gas Oven Is Not Heating – https://www.whirlpool.com/blog/kitchen/gas-oven-not-heating.html
  2. Sears Home Services: Gas Oven Not Heating Up? Diagnose and Fix the Issue – https://www.searshomeservices.com/blog/how-do-you-fix-a-gas-oven-that-wont-heat-up
  3. Sears PartsDirect: How to Fix a Gas Oven that Won’t Heat – https://www.youtube.com/watch?v=iuRrcw6y7Dc
  4. Cinch Home Services: 5 reasons your gas oven isn’t heating up – https://www.cinchhomeservices.com/faq-library/-/faq/reasons-your-gas-oven-is-not-heating-up