Make sure the outlet has power.
How to adjust my crafsman garage door opener.
1 2 hp 315mhz garage door opener for residential use only.
If fuses are blown replace them.
This video details how to adjust the opener force and travel of the door.
Locate the force adjustment dials.
How to troubleshoot the craftsman 1 2 hp garage door opener.
If circuits are tripped reset them.
Step 2 adjust the force.
Plug another device into the outlet to make sure it is working.
To open the door completely adjust.
Adjust the garage door opener mechanism.
How to adjust a garage door opener.
This model also utilizes the assurelink connectivity feature.
Tighten the chain by turning the rear adjustment nut counterclockwise and the front adjusting nut clockwise.
On the garage door motor there will be two knobs or dials to adjust the opener and the reverse sensor.
Craftsman 139 30437 garage door opener troubleshooting.
View and download craftsman garage door opener owner s manual online.
It has a timer to close feature which allows you to set the opener to automatically move your door down after a specified period of time.
Step 1 adjust the limit.
Check the fuse box or circuit breakers.
Step 3 adjust the safety reverse.
Craftsman 139 30437 is a residential garage door opener.
Refer to the owner s manual to determine which is.
Garage door opener garage door opener pdf manual download.
They can be found at the back panel of your craftsman garage door opener to increase the open force turn the open force dial about 1 4 of a full turn similarly to increase the close force turn the close force about 1 4 of a full turn operate your garage door.