1. Excessive kneading of the noodles by the noodle machine leads to insufficient strength. Flour with good gluten texture should be selected to reduce kneading time.
2. The adjustment of the noodle machine is too tight. The small screw of the gear lever of the noodle machine should be loosened appropriately to adjust the appropriate fit of the noodle machine.
3. The blade is worn and needs to be replaced.

1. Confirm whether the rollers and blades of the noodle machine are clean, and clean any flour residue.
2. Confirm if the rollers and blades of the noodle machine are functioning properly, and replace them promptly if necessary.
3. Check the fit, and if there are no issues, try opening the noodle machine for inspection.

1. Check if there is too much flour in the noodle machine, as excessive flour can cause the noodle machine to jam.
2. Confirm if the cutting blades of the noodle machine are functioning properly and if they need to be replaced.
3. If the noodle machine is still stuck, try to disassemble the machine, clean the flour residue inside the noodle machine, and then reassemble it.

1. Check if the power plug is securely inserted and if the socket is functioning properly.
2. Check if the switch is working properly and try replacing it.
3. Check if the power cord of the noodle machine is damaged. If it needs to be replaced, be sure to request a professional to replace it.

1. Try not to directly heat frozen food in an air fryer. You can let it thaw naturally for a period of time.
2. Food cannot be stacked together, and it is necessary to distribute the food reasonably to allow air to circulate around the food.
3. Food needs to be flipped or stirred appropriately to ensure that it can be uniformly heated.

1. Check for oil stains or food residue inside the air fryer, which needs to be cleaned regularly.
2. Ensure that the use of the air fryer complies with the instructions, and do not frequently open the lid or stir during the food heating process.
3. Try to avoid placing food in the same position and shake or adjust the position of the food appropriately.

1. Check if the power socket, power cord, and switch are functioning properly.
2. Check if the internal components of the air fryer are functioning properly, such as fans, heating tubes, etc., which need to be disassembled for cleaning or replacement.
3. Check if the temperature adjustment is correct. If the temperature is not set correctly, it may lead to heating failure.

1. Check if the power socket is functioning properly and if it is powered on.
2. Check if the power cord of the air fryer is plugged in or damaged.
3. Check if the switch is working properly. If there is a problem, you can try pressing it a few times to observe if the switch rebounds.