There could be several reasons why your gas cooker turns off after a few minutes. Some common causes include:
Safety feature: Many gas cookers are equipped with a safety feature called a thermocouple or flame failure device (FFD). This device is designed to shut off the gas supply if the flame goes out unexpectedly. It's a safety measure to prevent gas leaks and potential fire hazards.
Gas pressure issues: If there's a problem with the gas pressure, it can lead to the burner flame being too weak or unstable, causing it to extinguish. Low gas pressure can result from issues with the gas supply line or problems with the regulator.
Blocked or dirty burner: A clogged or dirty burner can disrupt the proper flow of gas and air mixture, leading to an unstable flame that may go out after a short time.
Gas leaks: In some cases, gas leaks can cause the flame to go out. If you suspect a gas leak, it's essential to turn off the gas supply immediately, ventilate the area, and contact a professional to inspect and fix the issue.
Faulty gas valve: The gas valve that controls the flow of gas to the burner may be faulty, causing it to shut off unexpectedly.
Overheating: If the cooker's safety mechanisms detect excessive heat, they may automatically shut off the gas supply to prevent damage or potential hazards.
To determine the exact cause and resolve the issue, it's best to consult a qualified gas appliance technician or a professional from the company that manufactured the gas cooker. Gas-related issues can be dangerous, so it's essential to address them promptly and with expert assistance. Never attempt to repair gas appliances yourself unless you have the necessary training and knowledge.