Raypak M266A, bought new control board on ebay, but seems to be in LoNox mode

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encom.lives

Member
Jul 18, 2022
5
minneapolis
Hi all, and TIA: I purchased a used control board from off of ebay to replace the one on my 266A unit that keeps blowing fuses.

Now installed, when the unit boots up it lists "LoNox" on the display in the boot sequence. It will spark and fire and begin to heat. But then will display fan errors, 5 min delay, and finally fan lockout.

My assumption is because this control unit came off of a LoNox unit (with the fan) and Raypak uses the same control board for both Atmospheric (mine) and LoNox models.

Is there a way through the interface to switch the board to atmospheric mode so it will work correctly with my unit?

my appreciate for any who reply!
-t
 
Thanks for the reply. actually, the tab is intact and has not been removed. So, why does the board boot sequence display "LoNox". Is the LoNox tab (either broken off or not) the only indication the board has for if it is installed in an atmospheric or LoNox heater?
 
encom.lives said:
Thanks for the reply. actually, the tab is intact and has not been removed. So, why does the board boot sequence display "LoNox". Is the LoNox tab (either broken off or not) the only indication the board has for if it is installed in an atmospheric or LoNox heater?
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That is the danger in buying used electronic parts for pool equipment. The instructions are for a replacement board that is used for all different models of heater covering all the variations. The native board may be a LoNox only board from the factory.
 
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