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Joecamel90
Joecamel90,
Category: Small Engine
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I replaced my Chamberlain battery on Model HD900D, it's

Customer Question

I replaced my Chamberlain battery on Model HD900D, it's functional for about 3 months, them on the screen it's telling wiring is in errror or alignment is in error. Instructions are basic black to black & red to red, they are done correctly. Very basic instructions .
Submitted: 12 months ago.
Category: Small Engine
Expert:  Joecamel90 replied 12 months ago.

Hello I will help,

Have the floor sensors been hit moving them out of alignment?

Are the LEDs still on on the sensors?