Of slack from the rail to the chain check your manual.
Troubleshoot old craftsman chain drive garage door opener.
I have adjusted both settings force and limits on the unit to no avail.
Ensure that the unit is plugged in the door isn t locked and if you are using a remote that the remote has batteries.
Make basic checks first.
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This is to verify if the socket works.
Wait for 15 minutes for the overload protector to reset before operating the garage door opener again.
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Over tightening the chain will put excess wear and tear on the shaft and gears.
The wall switch doesn t work first check your fuses gfci or breaker to see if any of them have tripped broken or burnt out.
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I took the chain off so that the weight of th.
Always look for loose hardware before you start checking out any other problems that might be associated with your chain drive garage door opener begin looking at the various nuts and bolts on the unit.
Check the breaker controlling the door opener and.
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Any ideas what is going on with this.
Repeat safety reverse test after adjustment is complete.
Craftsman 139 53315sr garage door opener troubleshooting 1.
The next thing to check is your home s circuit breaker or fuse.
Unplug the garage door opener from the socket outlet and plug in another device.
Garage door springs are broken.
If the garage door has been repeatedly used this may have tripped the overload protector in the motor.
The trolley may be jammed into stop bolts pull or push on door while motor is humming to release jammed condition.
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Check the chain tension most chain drive openers suggest you tighten the chain so there s about 1 4 in.
If this is the case then replace the fuse or reset the breaker or gfci and try the wall switch again.
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If everything else is working well then it could be that the power in.
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Garage door won t open all the way.
