Summer storms in South Florida are frequent and loud. In Hallandale Beach, the warm season from about late May to mid-October brings showers or thunderstorms on most days. Most strikes do no harm to a house at all. But a strike close by can send a spike of voltage through power lines, phone lines and even the ground, and modern garage door openers are full of small electronics that don't tolerate it well.
The good news is that a surge often damages one part rather than the whole opener. The trick is working out which.
How a surge reaches the opener
There are two main paths. The first is the power cord. A spike on the household wiring arrives at the outlet in the ceiling and goes straight into the opener's power supply and logic board.
The second path catches people by surprise. An opener has thin low-voltage wires running to the wall button and to the two safety sensors near the floor. Those wires can act like small antennas, picking up a surge from a nearby strike and carrying it back to the board. That is why a surge can kill an opener even when it was plugged into a surge-protected outlet.
Working out what was damaged
Start with the simple checks. Make sure the outlet has power by plugging in a lamp, and check whether a breaker or a GFCI outlet tripped during the storm. Many "dead" openers are only a tripped outlet.
If power is fine, what the opener does next narrows it down.
- Nothing at all, no light, no sound. The power supply or the main logic board took the hit.
- The light works but the remote doesn't. The radio receiver may be damaged. Try the wall button too. If the wall button works and every remote fails, the receiver section is the likely suspect.
- It opens but won't close, and the light blinks. One or both safety sensors, or their wiring, may have failed. The opener refuses to close when it cannot see a working sensor beam.
- The wall button is dead but remotes work. The wall console or its wire run was damaged.
- You smell burning or see scorch marks. Unplug it and leave it unplugged. The board is almost certainly gone.
Before blaming the receiver, rule out the everyday causes in our guide to a garage door remote that has stopped working. Write down what you see. It shortens the visit and helps decide whether parts are worth ordering.
When repair makes sense
Logic boards, receivers, sensors and wall consoles are replaceable parts on most openers. Repair usually makes sense when:
- only one part failed and the motor, gears and drive are in good shape
- the model is recent enough that the replacement board or sensor is still made
- the opener otherwise ran quietly and reliably before the storm
Swapping a damaged pair of sensors or a wall console is a quick job. A new logic board is a bigger part but can still be the sensible choice on a younger opener.
When replacement is the better call
Replacement starts to win when the damage is spread across several parts, or when the opener was already getting old. Watch for these signs:
- the board for that model has been discontinued or is hard to find
- the motor or gears were already noisy or slow before the surge
- more than one major component failed at once
- the opener lacks features you want now, such as a battery backup or a quieter belt drive
A new board in a tired opener can leave you with a fresh circuit and a worn-out motor. When the main board is the expensive part and the rest of the unit is near the end of its life, a new opener is often the better use of the money.
Protecting the next opener
No device stops a direct strike, but surge protection reduces damage from the more common nearby ones. A plug-in surge protector at the opener outlet helps with spikes on the power line. Some protectors also have terminals for the low-voltage sensor and wall-button wires, which covers the second path. Unplugging the opener during a severe storm is another option if you won't need the door, though remember the door will then need to be opened by hand.
Hallandale Beach is mostly high-rise living, and Census estimates put the median home's build year at 1975. Its single-family homes still have attached garages and openers that face the same summer storms. Our Hallandale Beach garage door repair page explains how NovaLift Garage Doors serves homeowners there from Hollywood, and our garage door opener repair page covers the repair itself. If a storm has knocked out your opener, call (954) 758-9013.