there are 2 protect sensors on each side near the floor. and they have to be aligned. the door cannot be closed when they are off set. you can align them manually and when the alignment is good, the light on the sensor will turn green.
' c6 n* e. D& Y( A! E- `1 l, L0 H基本可以确定不是,调啊弄干净都试了" l: p% K! d# i
中午断断续续弄2个小时都没有关上" }- @8 c8 a, {0 Y4 X: L* a
懒得弄了,就任车库门开着,到下午4点左右突然想起来,一按开关就关上了,这时候天色已经暗了----这个为什么???? \" Y. D% Z6 d回头想,早上如果是8点以前天不太亮出门,车库门每次都能关上; O' [; M0 y; z! |. n
周末睡懒觉到10点以后出门,就会车库门关不上" D6 S" Z. ]8 {
--所以是不是光的原因?$ i& p P" E. U2 X2 L; e. o
以前另外一个车库门有次关不上。邻居说是太阳光,站着挡住太阳光让影子投到sensor上就能关上门了。: O" @2 j w4 V4 A+ z
这个房子的车库门夏天从来没有发生过这个问题+ {4 g- }# X+ a/ `) E% c' `
现在大冬天,没有强烈的太阳光