Litter robot 4 always says drawer is full

I bought the litter robot four almoat a year ago. Its great but the only issue is everyday if not every other day i get a notification the drawer is full. We have tried cleaning the sensor and recalibrating the sensors in the drawer and vacuumed out the entite litter box.

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Hi @Kbennett ,

Thank you for contacting RobotShop.

We are sorry to hear about the problem.

Have you tried all troubleshooting steps explained in this video?

Can you give us your order ID and a serial number of the robot?

Best regards,
RobotShop team