ratgdo / esphome-ratgdo

ratgdo for ESPHome
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Spurious Door Open Messages #322

Closed johannesparty closed 3 months ago

johannesparty commented 3 months ago

ratgdov2.5i, secplus1, LiftMaster 3800.

Basic

Randomly start getting door opened events; comes in a cluster usually at night. After a bit, get door closed again. Might not get any for 24 hours, then get 10-20 times in a few hours.

Details - other info which might be relevant

Interesting

This problem only occurs with garage door 2.

Speculation

I have attached a few screenshots of the web interface.

Start of open:

Screenshot 2024-08-24 at 10 31 38 AM

During open:

Screenshot 2024-08-24 at 10 33 43 AM

A bit later:

Screenshot 2024-08-24 at 10 35 00 AM

I am happy to do some debugging if you let me know what to do. Not really familiar with esphome environment but I guess I can learn!

PaulWieland commented 3 months ago

swap the wall panel between two of the doors. I bet the problem follows the panel.

This is a known issue that gets reposted quite often. The speculated cause is failing capacitors on the wall panel.

johannesparty commented 3 months ago

Looks like you are correct.

I swapped garage 2 and garage 3 wall panels and now the spurious opens happen on garage 3. I couldn't find any info about bad capacitors on the LM398 and it isn't obvious which capacitors (none seem similar to the often-reported problem capacitors in LM888. If anybody knows, that would be great.

I did find an LM398 on eBay and will try that. Otherwise I guess I'll have to switch to LM889LMMC (times three because ... OCD?).

In any case, thanks so much for your help.