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Sent in a tech request to Hayward few days ago but no response. Am reaching out to learn other owner's experiences.

Yes, works. Model is SP 32950VSP installed by Florida Licensed Professional Pool installer who said the setting should be 1 on and 2 - 5 off.

Would like to hear from Tristar owners regarding their dip switch settings and configs.

Strange that the pump comes with dip switches having no function.

Right, but all have them, as shown in attached. What are the settings?

New Tristar SP32950VSP pump installed. Just want to be sure I’m understanding Dip Switch settings correctly for communication with my ProLogic PL-PS-16. The Prologic will be controlling the 950. What should those setting be?

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" Well the problem has finally been resolved! My GLX-PL-LOC-PS16 (local display) was causing the new circuit board (GLX-PCB-PRO) to generate the "Exp. Unit Software PS-16 Comm Error" because the PS16 was expecting an...

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" Agree. I found a chart here: https://www.hayward-pool.com/pdf/literature/automation-brochure-LITAUTOB14.pdf I don't believe a PS-16 display can serve as a virtual PS-8, but if you know otherwise then I'll work...

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" Right, how to change the setting? The 16-V uses the PS-16 display. The "virtual" applies to extended soft keys that can be programmed but do not control actual relays because there's no expansion board. Still...

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" Could virtual mode be the solution? I know that Hayward puts out virtual PS-8 and PS-16s. Would a virtual mode configuration not look for the expansion code?

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" Good point! "Reset config to default" may not resolve the pairing of the PS-16 to the GLX-PCB-PRO, if there is a pairing involved at all. Plus the new GLX-PCP-PRO was at default when installed.

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" Are you certain that the board can be reset after installation? And, if so, how?

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" My system was installed with a PS-16 local display without an expansion unit and I never received the check alert. Must all PS-16 local displays also have an expansion unit?

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" Does anyone know whether it is possible, and if so how, to program a GLX-PCB-PRO for specific configurations?

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" Good theories. I'll report what finally happens. Thanks much for your very helpful assistance!

Re: Guidance Needed: Hayward Check System That's how the original installer configured my system, a PL-PS-8 board with a PS-16 local display. I did not know at the time much about pools or automation so I just assumed everything was consistent. It was not until the original main board...

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" There is no expansion unit installed on my system. However, aux 7 - 14 and valves 7 - 10 always have, and continue to be, set to manual. If next board continues to generate alert I'll request that PS-8 display unit...

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" Hayward thinks a bad board, and confirmed that the PS-16 display module in a PL-PS-8 would not produce the alert. They are monitoring issue with local authorized Hayward installer who is awaiting new board. We'll...

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" At over $400 for the PS-8 display module, if it's producing the problem I think I'll just live with the alert. I'll contact Hayward and confirm whether it may be throwing out the alert.

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" The original installer of the entire system put in a PS-16 display module in a PL-PS-8 box. I asked about this and was told that's acceptable and would not cause the error, adding that the display board would be...

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" Thanks for your help! Did exactly as you directed regarding the Remote Display Communications terminal block -- error persists. Checked the Ecostar wiring and verified it is correct. Attached is picture of board.

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" Nothing in diagnostics regarding "expansion unit software revision". Have tried the power off and back on for over 10 minutes with no luck. Nothing changed from previous bad board to present board. AQL2-BASE-RF...

Re: Guidance Needed: Hayward Check System "Exp. Unit Software PS-16 Comm Error" That's the plan, but not confident that another board (which is backordered) will resolve the problem.

Authorized Hayward dealer installed new GLX-PCB-PRO board Rev. 4.46 (previous burned out due to"No Cell Power 2") and is baffled by Check System "Exp. Unit Software PS-16 Comm Error". All features of my set-up work fine except for the error being produced. The alert was never produced with old...