My Stanley Model D1000, Date Code 96176, starts down from either the remote
or the door pushbutton in the garage, but then reverses with the blinking
light code. This happens whether the obstruction sensor wires are connecte
d or not. The door will go down and stay down if I hold the manual pushbut
ton doorbell type switch until the door reaches the bottom. If I release t
he pushbutton anywhere in the travel except the full bottom, the door does
its reversal routine.
My gut reaction is that one of the control relays on the printed wiring boa
rd has a stuck contact. I beat on the relays with the power off and then r
econnected the power. It seemed like the door was ok for one period of tra
vel during which it closed about half-way, but then it went into the obstru
ction mode again and reversed with the flashing light. The printed wiring
board is marked 3528, BM01, date code 9615.
The Stanley help center/parts seller is closed until tomorrow when I will p
rice a replacement printed wiring board. Anyone have ideas for anything to
try in the interim???