If an electric oven has been turned off for several hours and the knob is not turning on the oven, there might be an issue with the oven itself or its power supply. Here are some steps you can follow to troubleshoot the problem:
Check the power source: Make sure the oven is properly plugged into a functioning power outlet. Also, check if the circuit breaker or fuse that supplies power to the oven is not tripped or blown.
Test other appliances: Check if other electrical appliances are working from the same power outlet. If they are not working as well, it could indicate a power supply issue that needs to be addressed.
Reset the oven: Some ovens have a reset button or a circuit breaker located near the control panel. Look for any reset options in your oven's manual and try to reset the oven to see if it resolves the issue.
Check the control panel: Inspect the control panel for any signs of damage, loose connections, or visible issues. Sometimes, the knobs or buttons may get stuck or malfunction due to dirt or debris.
Wait for the oven to cool down: If the oven was recently used and it's still hot, it may not turn on immediately for safety reasons. Allow the oven to cool down completely before attempting to turn it on again.
Contact a professional: If you have tried the above steps and the oven still does not turn on, it's best to contact a professional appliance repair technician. They will have the expertise to diagnose and fix any internal electrical or mechanical issues with the oven.
Remember, working with electrical appliances can be dangerous, so if you're unsure or uncomfortable with troubleshooting electrical issues, it's better to seek professional assistance.