Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hi, my name is John I will be assisting you.
Can you tell me more about your problem? There are no details provided so I don't know what your issue is at this point.
According to the information in the owners manual for troubleshooting this problem, it indicates that you have a problem with the sensors. The lights will flash on the unit as well as the led will flash 4 times. Everything that I see tells you to check the alignment of the sensors and also double check to make certain that there is nothing in the way of the sensors that might cause a problem.
Based on what the troubleshooting flowchart gives for this problem.
You have a sensor that is slightly misaligned or an obstruction that is keeping the door from going down.
I am going to opt out of your question which will allow for one of the other experts to pick it up and comment if they have anything else to add.