06:32PM | 03/11/06
Member Since: 03/10/06
1 lifetime posts

I have a CRAFSTMAN Garage Door Opener part number 41A5021-3C that recently started giving me trouble.

My garage door opens normal, however to close the door I have hold the controller down.

Can you help me troubleshoot it?

Thank you!



11:17PM | 03/11/06
Member Since: 04/25/05
1915 lifetime posts
Different models have slightly different characteristics. And some flash they light and/or have an LED indicator that will flash an error code.

But it sounds like problem with the photocell. Wire broken, missaligned, or something blocking the beam.

There is an LED each side. One for the infraread light source and the other for the receiver. Look to see if both are on.

The other thing is that they will stop or reverse if the closing load is too high. That can be caused by binding in the door or opener. Or the sprimgs misadjusted. Or by the opener close force limit mis-adjusted.


03:24PM | 08/12/09
Member Since: 08/11/09
2 lifetime posts
The battery in the keypad died, and now I can't figure out how to reprogram the code. I do not have the manual. The openers still work just can't program the keypad, just keeps blinking when I try the original code?


01:47PM | 05/03/10
Member Since: 05/02/10
1 lifetime posts
I have the same problem with the wireless keypad...If I delete the codes I can program the keypad, but then the remotes don't work. Then to reprogram the remotes, it wont work until I delete the keypad code
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