Question about Raypak Rp2100 Pool & Spa Heater Lonox 407k Btu Natural Gas Polymer Header Digital Rp407aenc

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RayPak 2100 series digital pool heater Code "EOL".

I have a RayPak 2100 series digital pool heater, Model P-R335A-EN. I turned it on and everything worked fine, the burrner came on and cycled off. I turned the heater off at the switch on the side of the heater. Now I have turned it back on and the digital display reads ''EOL''. The owners manual says it means End of Line (Factory use only). What can I do to make it operational?

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Press the mode button until the display reads "off". Remove the four screws holding the control cover on. Swing panel down so that the back of the board is visible. Press the mode button until "RESfl" appear. Press and hold both "up" and "down" buttons for 5-7 seconds until three dashes appear (---). This resets the fault history and clears any stored faults.

Posted on Sep 16, 2009

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Pool heater will not work


Eol is a manufacturers code meaning End Of The Line. I have never seen this displayed on any malfunctioning heater that I've serviced. Try shutting down the power to unit and resetting the board.

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Raypak 2100 digital heater give fault code eol


ILO or ROL. There is no EOL.

ROL is a switch inside the lower left corner of the heater. Press the red button. ILO is a lockout. Power down and power up.

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