07:01AM | 01/12/09
Member Since: 01/11/09
1 lifetime posts
Had same prob. Took controller apart and found a wire from the carbon pile rectifier had become loose from the circuit board. Resoldered it and it works fine. Rectifier and circuit board are located in controller part under the dark plastic cap; ie., the part that fits into the wall. It apparently gets pretty hot when left on for awhile (like overnight) even with only about half of the 500 watt max load, and the solder connection melted loose.


11:38AM | 01/12/09
Member Since: 08/23/08
8 lifetime posts
I still have the model 772CB; if you want it, jlmk.


11:40AM | 01/12/09
Member Since: 08/23/08
8 lifetime posts
If you need any details about the frequency of the Chamberlain model 772CB, or other info, jlmk.


06:04PM | 10/28/09
Member Since: 11/21/08
3 lifetime posts
i found the chamberlain switch that is compatiblw with the 772Cb. Do you still have any and if so, how much?


05:30AM | 04/21/10
Member Since: 04/20/10
1 lifetime posts
Do you still have these? I would like to buy one.


12:46PM | 04/21/10
Member Since: 08/23/08
8 lifetime posts
I finally gave mine away, I think. If I come across them during spring cleaning, I'll let you know.


07:57AM | 11/11/10
Member Since: 11/10/10
3 lifetime posts
Would anyone have a copy of the instructions for this unit (139-53773)?



09:48AM | 11/24/10
Member Since: 11/23/10
2 lifetime posts
I was wondering if you still had any of theses wire in light switches available. LiftMaster Model 722LM/Chamberlain 722CB. I know this is an old post but just checking


10:16PM | 05/18/13
Member Since: 09/06/06
4 lifetime posts
Send me an e-mail to dale dot brose @ gmail dot com and I'll send you the manual for the 139.53773 light control in PDF format.

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