Question about Chamberlain 1/2-HP Whisper Drive Belt Drive Garage Access System
The problem is that your system does NOT "see" the safety "eyes" sensors. Make sure that your sensors are properly connected to the opener (both sensors should have lights on them, one amber and another green). If they do not, check the wiring and the connections at the opener itself.
Posted on Nov 01, 2010
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Posted on Jan 02, 2017
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