Garage door openers building supplies garage organization shelving 1 answer from this member.
Garage door fuse blown.
These devices are made up of wire that can melt and break an electrical circuit when the current exceeds a safe level.
3 the circuit board itself is faulty.
4 a wire or wire harness is loose or burnt.
Problems with the circuit breaker should only be handled by a professional.
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2 the glass fuse on the circuit board has blown or popped.
Now you need to locate the blown fuse.
Garage doors sometimes seem to have a mind of their own often deciding when and how far they want to open or close.
A blown fuse may be discolored cloudy or have a melted or broken metal piece inside.
Look inside the fuse for charred glass or a broken filament evidence of a blown fuse.
Then you will need to determine which fuse has blown.
Here is what may cause your garage door opener to not power on.
Replace the blown fuse with one of the same type and amperage.
The owner s manual would tell you if your model has a reset and cover how to use it.
With the main power still off unscrew the blown fuse and remove it.
Most craftsman openers do not have any type of fuse though some older models did have a reset button.
Identify the broken fuse.
1 the transformer has failed due to a power surge.
Often times however a more serious issue will prevent an operator from receiving power such as a blown fuse or circuit breaker.
They act as a safety device to prevent an electrical fire.
Sometimes the fix can be as simple as replacing the batteries in the opener.