The door is too heavy to lift when the power goes out
Why it happens
Springs lose tension over time, so the door is no longer balanced and the opener has been hiding the problem.
Why it matters
In a power cut or opener failure, an unbalanced door can be very hard to lift, or can drop quickly once it is released. Signs to watch for: door won't stay put halfway up, opener strains or slows, door feels heavy by hand.
Response
Garage door spring adjustment restores balance, and Thom shows you how to use the manual release safely.




