PetSafe Microchip Cat Flap

I've tried and tried with this cat flap. My cat is linked to it, but the noisy sound of the mechanical action makes him run away from the door. I've had to revert to the much simpler version.

I bought 2 cat flaps about 2 years ago. I clearly had the same problem as some other people: recently, the cat flap started detecting my cat’s microchip randomly. So I unscrewed a few screws and removed the plastic cover in front of the sensor, and now the cat flap works again. Hope this helps.

Closing takes more than 45 seconds, which gives other cats enough time to get in.