Safety reverse system not working
We are getting ready for an inspection before selling our condo. We have sunk sooooo much money into this place, with a total remodel. We're hoping to squeak by with the old garage door. Real estate agent said to make sure the safety mechanism works. Well, it doesn't.
Is this something we can fix ourselves or do we need a professional?
The door and the opener are probably about 30 years old and hasn't been serviced in a very long time. I wasn't sure doors that old even had a safety feature, but it is mentioned in the instruction booklet.
Its a Sear's door opener.
Thanks for your suggestions.