I built a automatic door after buying the motor off Ebay. Easy to build one and it works great. But having problems with a timer for it. Any one have a recommendation for a good reliable 110 volt timer? I got a "Brinks" digital timer from Wally World. Seemed like the prefect timer. Two ONs and Offs. Built in battery so a power outage wouldn't change it's data. First one I set the data. Waited for it to hit the time set to work the door. Once it did nothing happened. Checked and rechecked. It was set as the direction said to set it. I took it back and exchanged it. The new one I set it the same way as the last one and it worked. Great I thought. So I set it to be ready to close that night and open in the morning. Went out to check it that night and the door had closed. Looking good. Got up and checked it the next morning. The door was still closed. Should had opened over an hour earlier. Check the timer and all the data had been cleared. Time of day was wrong too. I reset it. That night the door closed. Next morning the door opened. Worked good for four days. Then that morning I checked to find the door once again closed. All the data cleared again. I can't depend on this timer. I need a reliable one. Recommendations?