# Centric Air Whole House Fan

**URL:** <https://forum.bondhome.io/t/centric-air-whole-house-fan/4008>\
**Category:** Devices\
**Created:** [June 13, 2023, 7:39pm UTC](https://forum.bondhome.io/t/centric-air-whole-house-fan/4008 "2023-06-13T19:39:50Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![whyidie](https://avatars.discourse-cdn.com/v4/letter/w/f19dbf/32.png) [@whyidie](https://forum.bondhome.io/u/whyidie)\
**Post date:** [June 13, 2023, 7:39pm UTC](https://forum.bondhome.io/t/centric-air-whole-house-fan/4008/1 "2023-06-13T19:39:50Z")

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Anyone have any experience with Centric Air controllers ?

New to this business but from what I’ve gathered so far on the forum it seems like I won’t be able have the Bond control my fan :

FCC ID: OA3MRF89XAM9A

- Application: 915MHz Ultra Low-Power Sub-GHz Transceiver Module

If thats the case anyone have any workarounds ? Have considered wiring to a smart light switch but would prefer to use existing wireless setup if at all possible.

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**Author:** ![residualimages](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.bondhome.io/residualimages/32/74_2.png) [@residualimages](https://forum.bondhome.io/u/residualimages)\
**Post date:** [June 13, 2023, 9:31pm UTC](https://forum.bondhome.io/t/centric-air-whole-house-fan/4008/2 "2023-06-13T21:31:54Z")

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Welcome, @whyidie .

As you’ve gathered, there isn’t support for a device at 915 MHz.

_(Official hardware level supported frequencies in Bond Bridge: ~300-500 MHz [Serials starting with ZZ support 285.5 - 505.5 MHz, older models with serials starting with A or B only support 300 - 450 MHz])_

There are [some accessories](https://www.centricair.com/product-category/whole-house-fan-accessories/centricair-accessories/) you could maybe automate with a Switchbot.  
You could also look into the [physical SPI connection on the fan?  
Or the MiWi standard](https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/75017B.pdf) for which it _may_ have support? There’s a [demo kit](https://www.microchip.com/en-us/development-tool/dm182016-3) with a transceiver if you’ve got a bit of DIY programmatic trial and error.