It is bedtime, and you are ready to lock up. You press the remote button, but your garage door moves a few inches, stops, and reverses back open. The immediate panic is real. Your home feels vulnerable, and the thought of paying a $150–$300 emergency technician call-out fee is frustrating.
Before you worry, take a deep breath. Many nighttime garage door malfunctions are caused by predictable, physics-based factors: rapid temperature drops, sensor dew, nocturnal pests, or even radio frequency interference from security lights. This fast, 10-minute triage guide will help you secure your home tonight without spending a dime on unnecessary emergency visits.


