If lights are blinking the sensors are misaligned and need to be fixed.
Garage door opener does not work in hot weather.
Garage door openers are particularly susceptible to weather change.
If your garage door is made of wood then it will need to be properly maintained before and after the hot summer months.
One lightning strike near your home could cause a power surge that damages the circuit board in your garage door opener.
We purchased a garage door with keypad from sears and have noticed that when the door itself is in the direct sunlight late morning all the way until late afternoon you have to hold down the button on either the keypad or the button inside the garage by the door to the house until the garage door is all the way down or else it will act like there is something in the way and start to close.
A good safeguard to protect your garage door opener is to plug in a surge protector on the outlet where your opener is plugged.
The moisture in the air will soak into the wood and could lead to rotting and cracking in the door which could be a complete disaster if not taken care of.
When the weather gets hot the metal on the bracket and rails expands in a way such that the safety sensors become misaligned.
Step one when it s hot and acting up close the door disconnect the opener and open it manually.
The moving parts in garage door openers operate best when lubricated.
The weather can change the consistency of the lubrication which affects the opening.