How to Fix an Oven That Won't Heat Up

Few things are more frustrating than an oven that refuses to heat. Before you call a technician or buy a replacement, there are several things you can check yourself. This guide walks you through the most common causes and solutions.

First: Check the Basics

Before assuming the oven is faulty, check these simple things:

• Is the oven actually switched on? This sounds obvious, but it's worth checking.
• Is the timer or clock set correctly? Many ovens have a manual timer that must be set before the oven will function.
• Is the oven set to the correct function? Make sure you've selected bake, fan-forced or grill rather than a timer or light function.
• Has the circuit breaker tripped? Check your switchboard and reset if needed.

Electric Oven Won't Heat: Common Causes

1. Faulty Heating Element

Electric ovens have one or two heating elements (bake at the bottom, broil at the top). A failed element is one of the most common causes of an oven not heating. Signs of a failed element include visible damage, blistering, or the element simply not glowing red when switched on.

Fix: Heating elements can be replaced as a DIY job or by a technician. The element must match your oven's make and model. Replacement elements typically cost $30 to $80.

2. Failed Oven Thermostat

The thermostat regulates oven temperature. If it fails, the oven may not heat at all or may not reach the correct temperature. A thermostat fault is best diagnosed and repaired by a qualified technician.

3. Faulty Temperature Sensor

Many modern ovens use a temperature sensor probe rather than a traditional thermostat. A faulty probe can cause incorrect temperature readings and prevent the oven from heating. Sensor replacement is relatively straightforward.

Gas Oven Won't Heat: Common Causes

1. Igniter Has Failed

The igniter is the most common failure point in a gas oven. If you can hear the click but the oven doesn't light, or if there's no click at all, the igniter may need replacement.

2. Blocked Burner Ports

Spilled food can block the burner ports. Remove the burner and clean the ports with a small brush or toothpick.

3. Gas Supply Issue

Check that the gas supply valve to your oven is open. If other gas appliances in the home are also not working, contact your gas provider.

When to Call a Technician

Gas oven repairs should almost always be done by a licensed gasfitter. For electric ovens, element replacement is manageable for a confident DIYer, but thermostat and control board issues should be handled by an appliance technician.

When to Replace Your Oven

If your oven is more than 10 to 12 years old and needs an expensive repair, it may be more economical to replace it. Oceania Appliances stocks quality ovens across Sydney with free delivery and warranty. Contact us to see what's available.