OK here's what it does.

it goes all the way down, sits there for a second then opens again.
It's a "Liftmaster" 1/2 HP motor. Checked the sensors and they seem to
be clear and operational.
Any ideas? Thanks much

On Dec 29, 7:39*pm, wf3h wrote:
OK *here's what it does.

it goes all the way down, sits there for a second then opens again.
It's a "Liftmaster" 1/2 HP motor. Checked the sensors and they seem to
be clear and operational.
Any ideas? Thanks much

Should be an adjustment for the 'down limit' on it somewhere, try
easing it. I had that problem, traced to slight swell in the ground
lifting the slab a bit. Mine, though, did not have a perceptible
pause before it reversed.

Harry K

Lube it .. .. mine does that in cold weather when the rail needs to be
lubed.

wf3h wrote:
OK here's what it does.

it goes all the way down, sits there for a second then opens again.
It's a "Liftmaster" 1/2 HP motor. Checked the sensors and they seem to
be clear and operational.
Any ideas? Thanks much

sounds like you need to reset the lower limit.

s

"wf3h" wrote in message
...
OK here's what it does.

it goes all the way down, sits there for a second then opens again.
It's a "Liftmaster" 1/2 HP motor. Checked the sensors and they seem to
be clear and operational.
Any ideas? Thanks much

On Dec 29, 9:46*pm, Harry K wrote:
On Dec 29, 7:39*pm, wf3h wrote:

OK *here's what it does.

it goes all the way down, sits there for a second then opens again.
It's a "Liftmaster" 1/2 HP motor. Checked the sensors and they seem to
be clear and operational.
Any ideas? Thanks much

Should be an adjustment for the 'down limit' on it somewhere, try
easing it. *I had that problem, traced to slight swell in the ground
lifting the slab a bit. *Mine, though, did not have a perceptible
pause before it reversed.

Harry K

yeah i've got it all the way cranked up...will try...thanks.

On Dec 29, 9:47*pm, "__ Bøb __" wrote:
Lube it .. .. mine does that in cold weather when the rail needs to be
lubed.



same symptom! does it when the weather gets cold...

will try...thanks

"wf3h" wrote in message
...
OK here's what it does.

it goes all the way down, sits there for a second then opens again.
It's a "Liftmaster" 1/2 HP motor. Checked the sensors and they seem to
be clear and operational.
Any ideas? Thanks much


Is it properly balanced? Maybe the spring is trying to open it up when the
opener is making the door go down.

Disconnect teh door from the opener and pull it down to the halfway point.
Let go. If it stays there, it's properly balanced; if not, call the garage
door guys.