If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
Fixing garage door opener troubleshooting.
Replace the main gear drive if the garage door opener makes a grinding noise but the door doesn t move your main drive gear is probably toast.
If this happens look for a screw on the motor unit to adjust the sensitivity of the opener.
Especially in winter when rollers sometimes get stiff the door opener might be refuse to open.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
These common garage door problems are solvable and with a little bit of diy you can keep your garage door opener working for years.
Diy garage door repair for rusty door track.
However if your garage door opener was manufactured in the last 15 years it should include pressure adjustment settings for opening and closing the door.
Garage door doesn t open in winter.
Sometimes a garage door that lowers just fine will fail to open especially in winter.
Garage door opener won t open all the way fix.