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 Attic fan control via WIFI and Alexa
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pochrist
Starting Member

USA
1 Posts

Posted - 03/19/2018 :  4:49:26 PM  Show Profile  Reply with Quote
I have a Attic Fan circa 1970s' It came with a Double Switch (one High speed, one Low speed) and a 60 min Timer. Its uses a 110 volt line.

If anyone is really interested its "Sears Home ventilator model no.785.63931"

I couldn't find any info online due to its age, but I do have the Manual. I purchased 15+ years ago 2nd hand and I've been using it since. I did replace the original switch & timer years ago (kept the originals they still work) just wanted something on the wall more modern.

Does anyone have any experience with adapting an Attic fan control via WIFI and Alexa. I've been doing research and as far as I can tell the technology behind Attic fan's hasn't seemed to have changed as a majority of the more modern units still use the Double Switch & timer setup.

I would really like to be able to control it via an Amazon Alexa or a similar set up. I envision something like "Alexa turn on Attic Fan for 45 mins" or at the very least I like to be able to turn it on and off. Maybe I'm old fashion I also wanted to retain the use of a Double or Single switch to override smart switch and turn it on in case something goes funky with the smart switch I can still use the fan. Thanks in advance.

dave w
Junior Member

USA
54 Posts

Posted - 03/27/2018 :  1:20:04 PM  Show Profile  Reply with Quote
I don't think you will find a "drop-in" solution. Maybe this wired before your double switch. A mechanical switch tied to the sense wires would give you the override.
https://www.smarthome.com/insteon-2443-222-micro-on-off-module.html

This aftershave makes me look fat.

Edited by - dave w on 03/27/2018 1:27:21 PM
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