Who do you contact about a faulty westek wireless door chime kit model rfk200?

To address issues with a faulty Westek wireless door chime kit model RFK200, you should first contact Westek's customer support. You can find their contact information on the official Westek website or in the product's user manual. Additionally, if the product is still under warranty, you may also reach out to the retailer where it was purchased for assistance.