NeoTek wrote:
I have a Genie Pro 98 screw drive garage door opener. The door worked
fine a few weeks ago, but now it is malfunctioning. It opens fine, but
it will not close at all. It does not have the safety sensors (like
most doors have) near the floor, so that is not an issue. I have
checked all the connections and they look right (I can't find the
manual to be 100% sure. I have tried closing it from the remote and
the button that is hardwired to the opener. If I manually turn the
screw in the back of the opener, it will work fine (up and down).
There are two sensors on the door. One is at the top (to stop it from
going up anymore). The other is at the front (to stop it from going
down). I know the top is working fine because if you push the lever
while it is going up, it will stop. The same applies for the front
one. The only thing I can think of is that the circuit board inside
the door opener is bad. Any ideas?

Hi,
I have same type opener in my garage. Never had trouble in 10 years
except replacing burnt out bulbs. But lgoic tells me when the limit
switch is triggered, it should generate a sgnal to reverse the motor
turning direction probably by way of relay. Open the box cover and
see if there are relay(s). And see if they trips. I could look at mine
if needed.
Tony