LiftMaster 8550W 8550W Owners Manual - Page 4

Preparation Test the Wi-Fi® Signal Strength Before You Begin You will need: l Wi-Fi enabled smartphone, tablet or laptop l Broadband Internet Connection l Wi-Fi® signal in the garage l Password for your home network l MyQ Serial number (located on the garage door opener.) Test the Wi-Fi® Signal Strength Make sure your mobile device is connected to your Wi-Fi network. Hold your mobile device in the place where your garage door opener will be installed and check the Wi-Fi signal strength. Check Signal Strength. If you see: Wi-Fi signal is strong. The garage door opener will connect to your Wi-Fi network. Wi-Fi signal is weak. The garage door opener may connect to your Wi-Fi network. If not, try one of the options below to improve the Wi-Fi signal: No Wi-Fi signal. The garage door opener will not be able to connect to your Wi-Fi network. Try one of the options below to improve the Wi-Fi signal: • Move your router closer to the garage door opener to minimize interference from walls and other objects • Buy a Wi-Fi range extender Check the Door To prevent possible SERIOUS INJURY or DEATH: l ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of balance. An unbalanced garage door may NOT reverse when required. l NEVER try to loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their hardware, ALL of which are under EXTREME tension. l Disable ALL locks and remove ALL ropes connected to garage door BEFORE installation and operating garage door opener to avoid entanglement. To prevent damage to garage door and opener: l ALWAYS disable locks BEFORE installing and operating the opener. l ONLY operate garage door opener at 120V, 60 Hz to avoid malfunction and damage. 1. Disable locks and remove any ropes connected to the garage door. 2. Lift the door halfway up. Release the door. If balanced, it should stay in place, supported entirely by its springs. 3. Raise and lower the door to check for binding or sticking. If your door binds, sticks, or is out of balance, call a trained door systems technician. 4. Check the seal on the bottom of the door. Any gap between the floor and the bottom of the door must not exceed 1/4 inch (6 mm). Otherwise, the safety reversal system may not work properly. 5. The opener should be installed above the center of the door. If there is a torsion spring or center bearing plate in the way of the header bracket, it may be installed within 4 feet (1.2 m) to the left or right of the door center. See page 10. Torsion Spring OR Extension Spring See page 32 to connect the garage door opener mobile device or visit WiFiHelp.LiftMaster.com for more details 4