Garage Door will not close (opener, light, warm, outside)

[Mayor_McCheese]

For the last few months now I've been having problems with my Automatic Garage door. The door closes about the 3/4 of the way and then pops back up.

I have cleared the sensors and made sure they were aligned properly and it seemed to get better but then the problem seemed to come back. I normally have to hit the button to close the door about 3 to 4 times to get it all the way down. Also the problem seems to be when its a little cooler outside.

I have read where RPM sensor could be the problem. Anyone know how I can check this? Is there anything else that I can check as well?

[sacredgrooves]

there are down force adjustment knobs on the back of the unit. it may be set too sensitive causing it to revert back to open when it meets some minor resistance on the track. adjust the knob and have someone at the button until it is dialed in.

[Mr. Whips]

Try to use wd40 on the track also.

[windtimber]

For now adjust the closing force so it goes down and stays down - as noted by the previous poster. The underlying problem MAY be somebody over lubricating the tracks with grease that gets stiff when it gets cold. Or doing the same to the drive chain [if you have an opener with a drive chain]. When it warms up, the grease/lubricant becomes softer and things work fine. So, in the spring clean the tracks/chain etc. well, get the old lubricant/grease out, and relubricate with whatever the manufacturer recommends - usually white lithium grease which remains more "pliable" at low temperatures.

[Ultrarunner]

It's a common problem to have in the wet rainy season where I live... the door frame and/or the door (if you have a wood door) is affected by the moisture.

Moisture problems can be the result of the wood swelling and therefore binding or the door may have absorbed a lot of water increasing the weight.

Have you tried unlatching the door from the operator track? The door should move easily throughout the full range of motion without binding or feeling extremely light or heavy...

Adjusting the motor to overcome problematic door operation is only a temporary fix at best...