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Ask Billy Your Own Question
Billy, Technician
Category: Pool and Spa
Satisfied Customers: 22541
Experience:  Licensed in Hydronics and Boilers
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Customer Question

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Submitted: 2 years ago.
Category: Pool and Spa
Customer: replied 2 years ago.
I am trying to figure out which wires I connect where on a new vacuum pressure swich. I have a ten year old Cal Spa hot tub. I have two wires but three apparent spots to connect them on the switch. There is one connection on the top of the switch and two closer together down below. I can text/email a picture of the switch if needed. thanks, Greg
Expert:  Billy replied 2 years ago.
the wires should go on a C and N.O. terminal. Do you see these?
Use reply?
Customer: replied 2 years ago.
No, will those be labeled as such?
Expert:  Billy replied 2 years ago.
Post pic of switch and I will direct.
Customer: replied 2 years ago.
They should be attached below
Expert:  Billy replied 2 years ago.
Thank you,
I see your issue unmarked switch.
First black goes up on the silver tab.
The we choose one of the brass tabs...when brass connects to silver inside.....when open the other tab does.
So keep black on silver and try the red on each terminal until it reads closed
Customer: replied 2 years ago.
Whevever I try putting one of the wires on the top silver tab, then turn on the suction, I get an SF error code.
Expert:  Billy replied 2 years ago.
do you have a meter? One that has a setting that when you touch the leads together it beeps?
Customer: replied 2 years ago.
Yes but won't be home for a few days to check it out as I am out of town. I will let you know when I get back. Thanks, Greg
Expert:  Billy replied 2 years ago.
Terrific...just want to see which 2 connect when flow is made...
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