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If the "Button" means the one on Remote Controller, you can try to find the battery inside the Remote Controller.+ ]7 g0 q& v- I& ?) x6 d3 F
In most of cases, there is a screw on the cover, sometime the screw might be covered by label. If the Top/Bottom Covers of Remote Controller are not secured by screw, then you can use fingernail or screw driver to open it.4 {. v( h# p" C$ }% N
9 }2 w) d& Y0 |; tIf the "Button" means the Up/Down Switch inside Garage, then thing might be more complicated. Basically, you need to check the electric circuits by multimeter. |
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