portion of springis broke, but door seems to operate ok. could this problem.

It depends on which spring is broken and how severe the damage is. If it is a torsion spring (located above the garage door), the weight of the door may bring the broken spring down and cause the door to become unbalanced, making it difficult to operate. This can also put additional strain on the garage door opener and lead to further damage. It is important to have a broken spring replaced as soon as possible by a professional to prevent any further issues....Read More