The first thing I would do is test for continuity to the actual control panel # LC77CJ with a circuit tester # PTW2993. If you are not receiving voltage at all, then you may have a defective panel. However, first you should ensure all your connections are secure and not corroded.
The next thing I would do is check any fuses for the Level Best system, sometimes it may be as simple as replacing a blown fuse.
At this point, if everything looks good, your control unit just needs to get replaced.... view full answer...
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