I have a Chamberlain Whisper drive garage door opener. When i push teh remote to open door, the door only opens 68 inches and then stops and remians open only partially. Door will not open all the way. When standing in the garage the senbsor on green is green and the one on right is orange. Please help, need to get in my garage!
Building Materials - Chamberlain - 1/2-HP Whisper Drive Belt Drive Garage Access System
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