If your oven does not turn on when you start it, the problem could be the ignitor, the gas connection or the electrical supply. To determine the exact cause, there are a few things you can check before proceeding with a repair.
Your oven may not be heating up due to a dirty or faulty ignitor. Dirty ignitors simply need gentle cleaning to remove any buildup. Model-specific cleaning instructions can be found in your appliance care guide. If there is no buildup on the ignitor, it may be faulty and will need to be replaced by a licensed technician.
Another area to inspect is the electrical connection of your oven. Ovens need to be connected to a functioning grounded outlet with a dedicated circuit. Check the circuit breaker to rule out that a fuse has not been blown.
Once you’ve ruled out the ignitor and the electrical connection, your oven may not be heating because of an issue with the gas connection. First, verify that the gas valve is in the ON position. The valve can typically be found on the gas branch piping immediately after the piping comes through the wall or floor. If the valve is in the ON position and your oven still won’t heat up, the oven may need professional inspection.