I installed my timer thru a 3 way connection. Did it step by step according to the manual. But does not work. Neither the timer nor the other switch work. Need help.

Jose, we would love to have the opportunity to work with you directly and help walk you through the troubleshooting steps for this product, so you can enjoy our products to their full potential. At your earliest convenience, please give us a call at 1-800-654-8483.