To isolate potential sources of interference turn the circuit breaker off to the garage and plug the garage door opener into an extension cord from another room.
Garage door opener seems weak.
If you see an error code flashing on the motor unit look up the error code in your owner s manual or refer to our error code charts to decipher the code and troubleshoot the problem.
Many garage door openers use fractional horsepower psc motors.
Close the garage door.
This is related to the up limit switch.
I just read something on another forum about people having trouble with their garage door openers not working.
This is a very common failure with single phase hvac equipment too.
Sooo if you are having difficulties check the bulb in the overhead motor compartment and if it s led replace it with an incandescent bulb.
These motors have a run capacitor that can get weak or go bad reducing the motor s start and run torque below acceptable levels.
Try making small adjustments.
T his is a pretty uncommon problem but one that can happen after you ve first installed your garage door opener.
Apply two drops of penetrating oil to the seams of the hinges.
Wipe away grease and grime buildup on all hinges rollers and roller pins with a damp cloth.
Find the chamberlain garage door opener technical support you need to get your garage door opener operational.
If the range improves then the interference is coming from a device in the garage.
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.