Here are some reasons why you might be having this problem.
My garage door won t open or close.
Many garage doors have a powerful torsion spring located horizontally above the door.
Check the battery in your remote operator by walking into the garage holding it in your hand.
Every garage door opener comes with a disconnect switch in case you lose power.
Believe it or not such a situation may include the tiny insect nest settled in the photo eye sensor the door thrown out of the track by the ball or complicated mechanical problem.
Press the button as you observe a small blinking red light on the box where the chain enters and exits.
Some of them you can solve yourself but some issues require professional intervention.
When the door is lowered the spring winds up tightly creating a pulling force that helps lift the door up.
If the door opens with the wall switch a simple battery change in the remote should do the trick.
You might have absentmindedly unplugged the operator as you were exiting the garage through your internal door to the house.
In the funniest of scenarios the problem will simply be due to an unplugged power cord.
First check the sensor lights.
There are many reasons the garage door won t close.
You might be out of range.
Garage door won t open or close.
Sometimes a garage door won t open or close for one reason only the operator has no power connection.
Clutter or obstructions that block the sensor are the first problems to look for if your door won t close or in extreme cases open at all.
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Make sure it is hanging down from the motor.
When your garage door won t open with the remote there are few things that can cause this problem.
The antenna on the motor could be damaged or blocked from the signal.
If anything interrupts this beam of light the garage door will not close and the ceiling light on the opener mechanism will flash as mentioned in the previous step.