My garage door got stuck about half way up on a cold night. It went up
and down about a foot a couple of times and then stopped moving all
together. I pulled the string to disconnect it, sprayed some lubricant
on the rollers, and am moving it manually now because when I hit the
button, the motor runs, but it doesn't look like the chain is moving.
Could the chain have jumped off track or something?
The chain "connector" to the system may have come disconnected.
manually move the door all the way up and then all the way down, to see if
the chain "reconnects" to the connector, then try the motororized system.
Let us know the outcome.
The "up and down" sounds like it bound on something and reversed on the
over-torque switch until one of two or three things happened --
1) Sheared a shear pin on the shaft to the drive gear (if you're
fortunate and there was one) which is designed to protect more
expensive stuff from breaking
2) Stripped gears in transmission driving the drive gear
3) Stripped the gear teeth itself
4) If you're lucky, did just jump of the gear.
Disconnect door from chain, get where you can see what is actually
going on (but don't get a sleeve or something caught anywhere) and use
the remote or other way to actuate it to see what is/isn't actually
moving. (After, of course, simply getting up there and looking to see
if you can see something really obvious like the chain not on the drive
Before trying the door again, you'll want to find out what was the
cause of the hang up that caused the problem to begin with or you'll
simply do more damage the next time if it isn't fixed.
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