That worked! Thank you for your help. My delta is back up and running.

@o_lampe The jumper is in the Vin position.
The MOSFet is identified as F5305S
The coupler appears to be an EL817
I'm not certain if that helps at all.

It looks like makerhive sells all their berd air kits with these switch boards now. If this were a common issue I think I would find it in forum posts somewhere. Maybe I have a defective board/pump?

Side note, I did try running a print at 100% speed, just to see what happened and I noticed that while the heated bed output light was illuminated, I got a slight change in pitch from the pump and checking with a meter, the power going to the pump was dropping off by .08vdc and rising back again once the light was out. At the moment the two are sharing the same PSU.

Update: makerhive got back to me and are sending me a new switch, they believe mine is defective. I should get it in a few days.

It has been a couple of weeks since I moved the router closer to my printer. I am happy to say that after moving the router to within about a 6ft line of sight with my printer, I have been enjoying DWC undisturbed by constant dropouts, save for one instance today, which I believe I can attribute to mistakenly trying to upload a g-code file into the job list via Slicer while another print was in progress.

I had enough confidence in the system's stability now that I invested in a smart effector & rods for the printer as well and I couldn't be happier with the result.

Thank you to everyone that replied and helped out a new user struggling. When I get around to building a second printer, I know what board I'm putting in it.

@fred-y
It looks like the m950 command isn't supported by my board's current firmware (2.05.1). I haven't updated this thing in a long time. I'll have to go through the update and see how it does with the commands you've provided.

@uk25

Its been a while since I've been able to mess with my printers, sorry for the delay. I got the new switch from MakerHive installed and my control has not really improved. I get a small 'controllable window' within the S0-S255 range which I can shift with frequency changes, but nothing I've done has widened the span of that window. Anything below the controllable range results in the offensive buzzing sound with little to no output of air from the pump. Anything above the controllable range results in no change in output (S200-S255 may output the same amount of air, for example). I also installed a diode across the terminals as recommended in other forum posts, with no change in performance. If you figured your issue out, please let me know as I am out of ideas to make this work.

@o_lampe The jumper is in the Vin position.
The MOSFet is identified as F5305S
The coupler appears to be an EL817
I'm not certain if that helps at all.

It looks like makerhive sells all their berd air kits with these switch boards now. If this were a common issue I think I would find it in forum posts somewhere. Maybe I have a defective board/pump?

Side note, I did try running a print at 100% speed, just to see what happened and I noticed that while the heated bed output light was illuminated, I got a slight change in pitch from the pump and checking with a meter, the power going to the pump was dropping off by .08vdc and rising back again once the light was out. At the moment the two are sharing the same PSU.

Update: makerhive got back to me and are sending me a new switch, they believe mine is defective. I should get it in a few days.

It's meant to protect the control board by isolating the fan pwm cconnection from the pump circuit. The ez switch has connections from the psu to the pump on one side and on the other side it takes in a 2 pin 12-24v fan signal from the controller

I recently bought a berd air kit from makerhive to install on my delta printer with a duet 2 wifi. I bought the extra "ez switch" they sell as well, to isolate & protect the duet from the pump. I have everything wired and plumbed and at 100% I'm blown away (no pun intended) at the amount of air this thing pushes through that little cooling ring.

The problem is, I can't seem to control the speeds in between 0 and 100% very well.
Initially I had an awful noise from the pump at anything below about 80%.
After researching this on the forum a bit, I saw people had to change their frequency to the 25k range to get better performance and reduced noise, so I tried that. Now the awful noise is gone, but I don't seem to get a change in the pumps output unless I make a drastic change (more than 50% shift). I've also tried various other frequencies with varying thresholds of poor response and awful noise.

I saw a bunch of berd air posts while researching this, but none that involved the e-z switch I'm using. I'm wondering if the switch is expecting a fan input with switching occurring on the positive lead, while I believe the duet switches the negative pin. Would m106 i1 switch pwm to the positive pin?

For reference, this is an example of the switch, makerhives web page seems broken right now
https://www.kis3d.de/en/products/mosfet-modul-berd-air-e-z-switch-pwm-controller

It has been a couple of weeks since I moved the router closer to my printer. I am happy to say that after moving the router to within about a 6ft line of sight with my printer, I have been enjoying DWC undisturbed by constant dropouts, save for one instance today, which I believe I can attribute to mistakenly trying to upload a g-code file into the job list via Slicer while another print was in progress.

I had enough confidence in the system's stability now that I invested in a smart effector & rods for the printer as well and I couldn't be happier with the result.

Thank you to everyone that replied and helped out a new user struggling. When I get around to building a second printer, I know what board I'm putting in it.

Most of the time it seems to be in the mid to high 60's. Moving the printer upstairs to get it closer to the router really isn't an option (cats like the printer too much), but I should be able to move the router downstairs closer to the printer. I'll try that next.

I haven't been able to update the homing files yet, as I have not been able to successfully connect to DWC today. It looks like the issue is still going on after the firmware update.

That applies to delta printers as well?

I am still experiencing disconnects (just had one). I also have network errors when trying to upload g-code files or update my config file, which causes it to disappear from the system and needs to be manually uploaded via sd card. I'm also getting several new errors in the lower right hand corner of the screen when I start up the printer and press home: