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　　If the heating pad does not generate heat, there may be several reasons:

　　1. Power issue: Firstly, please ensure that the heating pad is connected to the correct power source and that the power outlet is working properly. Check if the power cord is intact and if the plug is properly inserted into the socket. You can also try connecting the heating pad to another power outlet to determine if it is a power issue that is causing the non heating.

　　2. Temperature regulation issue: Some heating pads are equipped with temperature regulation function. Check if the temperature regulator on the cushion is set to the appropriate temperature range. If it is a digital temperature controller, please ensure that the battery is correctly set to the desired temperature.

　　3. Mode selection: Some heating pads may have multiple working modes, such as timing switch, automatic adjustment, etc. Ensure that the heating pad is set to the correct working mode for normal heating.

　　4. Damage or malfunction: Check if there is any obvious physical damage to the heating pad, such as broken wires or abnormal cable connections. Damaged or malfunctioning heating elements may also cause the mat to not heat up. If obvious damage or malfunction is found, it should be stopped immediately and relevant manufacturers or maintenance personnel should be consulted.

　　5. Protection mechanism: Some heating pads are equipped with protection mechanisms, such as overheating protection and automatic power-off function. When the heating pad exceeds the set temperature or is used for too long, it may automatically stop heating to prevent overheating. In this case, you may need to wait for a period of time for the heating pad to cool down before attempting again.

　　If, after excluding the above factors, the heating pad still does not generate heat, it is recommended to contact the manufacturer or after-sales service of the heating pad. They can provide professional guidance and technical support, or provide you with replacement or repair solutions.

　　Follow the instructions and warnings for using the heating pad. Avoid placing items on the mat, ensure proper use, and avoid prolonged continuous use. If there are any abnormal situations or discomfort during use, please stop using immediately and seek professional advice.