If the pump door won't close, take the following steps: 1. Recheck Tubing: Ensure the tubing is properly aligned and free from kinks. 2. Inspect for Obstructions: Look for any foreign objects that might be blocking the door. 3. Consult the Manual: Refer to the device's manual for troubleshooting tips. 4. Seek Assistance: If you are unable to resolve the issue, consult a biomedical engineer or technician for assistance.
