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poolguy810
poolguy810, owner - pool and spa service company
Category: Pool and Spa
Satisfied Customers: 1671
Experience:  Servicing pools and all brands of spas for over 28 years.
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I have a Raypak pool heater 266A -RNC I originally had default code PRS and service blink

Customer Question

I have a Raypak pool heater 266A -RNC
I originally had default code PRS and service blinking. There was sufficient water flow. Cleaned the cooling coils. Did not correct the problem.
I purchased a new board, water pressure switch and installed them.
When I turn on the panel it reads
RV 1 off
SNS off
How do I turn SNS on?
Submitted: 1 year ago.
Category: Pool and Spa
Expert:  Billy replied 1 year ago.
did you set the dip switches on board on what to recognize as inputs?
use reply
Customer: replied 1 year ago.
There are no dip switches on the board. It has been solved by replacing the pressure switch.
Expert:  Billy replied 1 year ago.
Thank you.
In your initial question it said you already replaced the switch with new so that was eliminated. If you do not have dip switches then you have program button/menu.
I hope your fix is complete...strange to have a brand new switch fail unless installed wrong

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