May 01, 2009
I have Sears garage door opener 139.53960SRT and the sender voltage is low at 6V. Any ideas?
I eliminated short by removing sender and receiving wires and measuring directly at terminals in back of door opener.
B b g...
Expert
The sending unit should be operating at 9v. If you are certain there is no short in the wiring than you need a new set of photo eyes for your gdo. They can be purchased at your nearest sears or at sears.com.
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