Hayward buttons schematic for Hayward Maxflo - trying to tap into the buttons

[dannieboiz]

I found this YouTube video that I thought is really neat. Purchased everything I need to do this but not sure which pins to tap into. Does anyone have the schematic and know which pins to tap into to mimic a button press?

 

[ajw22]

Use a multimeter and find which contact points close when a button is pressed.

With some poking at the board contacts in continuity mode should let you figure it out.

 

[dannieboiz]

That's what I did today, I was able to find the contact for the power and the menu button but I was not able to tone out any of the speed 1-3 buttons.

I've tried all types of combination and just couldn't get them to register. For now, I'm at least able to confirm that I can power it on and off from wifi

 

[dannieboiz]

For those that's interested, I figured out all the pins on the board. I'm able to use the Tuya Relay, set inching to 1 seconds and can trigger whatever I need.

Using the 4 relay board, I can now control start/stop and Speed V1-V3. Sure beats spending 1800 on a new pump just for wifi control. I don't have an EE background and took me 2 days to figure this out. Hopefully this helps somebody else. Pin 1 on the board is from the Left of the photo. You can ignore the colors, I used an ethernet cable to tap into the board it's just for my own reference.

Board pin 1	Board Pin 2	Wire 1	Wire 2	Ohms	Button
1	3	Orange	Green	25	Up
1	5	Orange	Blue	25	down
2	1	White/Orange	Orange	25	Start/Stop
4	1	White/Green	Orange	25	Display/Function
6	3	White/Blue	Green	25	V3
6	4	White/Blue	White/Green	25	V2
6	5	White/Blue	Blue	25	V1