![]() Follow these steps to troubleshoot your garage door. If your garage door is not balanced, your garage door opener will not function. Unbalanced garage door/Damaged door tracks, jambs or rollers Now let’s take a look at each of these and show you how to troubleshoot it. When your garage door is not opening all the way, it can be caused by an unbalanced garage door, damaged door tracks, jambs or rollers, wrong force settings, or travel limits. This prevents the motor inside the opener from overheating and eventually breaking down. The garage door won’t open fully.Ĭhamberlain garage door openers are equipped with a safety feature that halts the opener when it encounters resistance or obstruction. However, if the LEDs don’t glow, the sensors are damaged, and you need to replace them. Instead, your pre-wire is broken, and you need to get it replaced. If the LEDs on both sensors glow, it means they are not faulty. Now point the safety sensors at each other.Connect the white wire from the sensor to the white terminal of the garage door opener, and then the black and white wire to the grey terminal.Disconnect the pre-wire from the garage door opener.Go along with your safety reversing sensors. ![]() Now put a step ladder under your garage door opener and climb it.Extra precaution, when doing this, to avoid any injury. Strip the ends of the cables on the safety sensor with a wire stripper, or knife.Disconnect the sensors from the pre-wire by cutting the wire at least 12” to 16” from the sensors.Losen the wing nuts of the sensor holders and detach the safety reversing sensors.Here is how to figure out which one is causing the problem If the problem is still not solved, then either the cables are broken, or the sensor is faulty. Now get down from the ladder and check if the cable is well connected on the sensors as well. ![]()
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