How to Fix an Oven That Won't Turn On
An oven that refuses to turn on is a frustrating problem — especially when you need to cook. Before calling a repairer, there are several things you can check yourself. This guide walks through the most common causes and what to do about each one.
Step 1: Check the Power Supply
This sounds obvious, but it's the first thing to check:
- Is the oven plugged in? (For freestanding ovens with a plug)
- Has a circuit breaker tripped? Go to your switchboard and check if any breaker is in the off or middle position. Reset it and try the oven again.
- Has a safety switch tripped? Check the RCD (safety switch) on your switchboard.
- If you have a hardwired oven, check whether the isolation switch (usually mounted near the oven) is on.
Step 2: Check the Control Lock
Many modern ovens have a control lock or child safety lock feature. If the lock is activated, buttons won't work and the oven appears dead. Check your oven's manual for how to deactivate it — usually hold a specific button for 3–5 seconds.
Step 3: Check the Clock or Timer
Some ovens will not operate unless the clock is set. After a power outage, the clock may have reset to 0:00 or be flashing. Set the clock correctly and try the oven again.
Step 4: Check for a Delay Start Setting
If your oven has been accidentally set to a delayed start, it will appear off until the programmed time. Check the timer/delay settings in the oven controls and cancel any scheduled program.
Step 5: Check the Oven Door
Some ovens have a safety interlock that prevents them from operating if the door isn't properly closed. Make sure the door is fully latched. Check whether the door hinge or seal is preventing proper closure.
Step 6: Check for Error Codes
Many modern ovens display fault codes when something is wrong. If you see a code like F1, F2, E1, E2 etc., note it down and look it up in your oven's manual. Common codes include:
- F1 or E1: Temperature sensor fault
- F3: Control board issue
- F7: Function key stuck
Common Causes That Require a Technician
Faulty Element
Electric ovens have heating elements (bake element at the bottom, broil/grill element at the top). If an element has failed, the oven may come on but not heat, or in some cases the control board may detect the fault and prevent startup.
Faulty Temperature Sensor (Thermistor)
The oven temperature sensor tells the control board when the oven has reached the set temperature. If it fails, the oven may not operate. Temperature sensors are replaceable and not overly expensive.
Faulty Control Board
If the main control board has failed, the oven will appear completely dead. Control boards are more expensive to replace but are a definitive fix.
Faulty Ignition (Gas Ovens)
For gas ovens that won't ignite, the igniter may have failed. This requires a qualified gas technician to replace.
When Is It Worth Repairing vs Replacing?
A repair is usually worth it if the oven is less than 8–10 years old and the fault is a single component (sensor, element, igniter). If the control board has failed in an older oven, replacement may be more economical.
Oceania Appliances stocks a full range of freestanding ovens, wall ovens and benchtop ovens at great prices. Visit us at 2/14 Centre Place, Wetherill Park — open 7 days, 10am to 8pm. Free delivery across Sydney.