If the Oven Mechanical Timer stops working, how can I troubleshoot the problem?

The Oven Mechanical Timer is an important part of the normal operation of the oven. If it stops working, it will affect the use of the oven. Here are some troubleshooting steps.
First, check the knob of the timer. Check if the knob is damaged, stuck, or loose. Sometimes, the knob may be worn due to excessive force or long-term use, resulting in the inability to adjust the time normally or to effectively connect with the transmission mechanism inside the timer. If you find that the knob is problematic, you can try to gently turn the knob to see if you can restore the normal connection. If the knob is severely damaged, you may need to replace it with a new knob.
Check the gears and transmission inside the timer. Open the control panel of the oven (when it is safe and the power is off) and observe whether the gears inside the timer are stuck, broken, or severely worn. If there is debris between the gears, it may prevent it from turning normally. You can use a small brush or a can of compressed air to clean the dust and debris between the gears. If the gears are damaged, you need to purchase the corresponding replacement gears for replacement. At the same time, check whether the drive chain or belt is loose or broken. If there is a problem, you need to adjust or replace it.
Next, check the timer's spring. Mechanical timers are usually powered by a spring. If the spring is broken or loose, the timer will not work properly. Check the spring for integrity and try to gently turn it to feel its elasticity and tension. If the spring is loose, you can carefully re-tighten it, but be careful not to use too much force to avoid damaging the spring. If the spring is broken, you will need to replace the entire timer assembly.
Check the timer's connection to the rest of the oven's circuits. Although a mechanical timer is primarily a mechanical structure, it may be connected to some of the oven's electronic control components to achieve overall functional control of the oven. Check the connection for loose, broken or shorted wiring. Make sure the timer's wiring terminals are firmly connected and not oxidized or corroded. If you find a problem with the wiring, you can reconnect or repair the wiring.
Consider the overall aging of the timer. If the oven has been used for a long time, the timer may fail due to long-term wear and aging. After eliminating the above specific component problems, if the timer still does not work, you may need to replace it with a new timer. When choosing a new timer, make sure its model is compatible with the oven to ensure that the oven can operate properly.