Can my controller board turn the blower on and off?

[BR928S4 (Stan Holt)]

I did a post in December on my solution. It also has a time delay when the job is finished to clear out any remaining smoke.

Controlling the exhaust blower with Ruida

I took thx suggestion and added a time delay relay. I found this Drok relay on Amazon for less than $14. The relay came with standoffs so it was attached to the front of the controller with VHB tape. The delay time is easily adjustable. Use the P7 mode for a off-delay timer. The 24VDC was taken right off the control board. [image] [Drok%20Time%20Delay%20Relay]