If they re turned on in both the sensors then there is no issue with the power supply.
No power going to garage door opener.
This is related to the up limit switch.
While this may seem like a no brainer one of the most common causes of garage door opener failure is simply the result of the power cord working loose from the electrical outlet.
Depending on the model most work by connecting two to four wires onto terminals mounting the device on the wall and then plugging the unit into an electrical outlet.
When something obstructs the beam of light the garage door should immediately return to the full open position.
If you find the lights turned off in one or both the sensors it indicates that there is a problem in power supply.
3 the circuit board itself is faulty.
1 the transformer has failed due to a power surge.
4 a wire or wire harness is loose or burnt.
T his is a pretty uncommon problem but one that can happen after you ve first installed your garage door opener.
Try making small adjustments.
One of the sensors the sending eye transmits a focused beam of light to the receiving eye.
A wall console unit for a garage door opener is not a complicated device so it s fairly simple to troubleshoot when something seems to go wrong.
Sometimes a garage door won t open or close for one reason only the operator has no power connection.
2 the glass fuse on the circuit board has blown or popped.
As with many such problems the most common problem is the simplest one the motor unit has been unplugged.
When there is no obstruction to the sensor beam the garage door is allowed to close.
An emergency release cord on the garage door arm opens the trolley to allow you to disengage the garage door from the.
You might have absentmindedly unplugged the operator as you were exiting the garage through your internal door to the house.
During a power outage you must manually open and close the garage door.
Look for small led lights on the sensors.
In the funniest of scenarios the problem will simply be due to an unplugged power cord.
It s important to get this switch at just the right distance from the motor so that the door is able to close all the way but the motor also knows to stop running.
Here is what may cause your garage door opener to not power on.