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Re: Digital Raypak RP2100, Low Nox Heater Not Heating Correc Thank you for the input.

Re: Digital Raypak RP2100, Low Nox Heater Not Heating Correc Mongo, thank you for your input. Mine is a Digital unit and has "Up-Down" touch screen controls for increasing/reducing temperature settings. So, no knob to rotate. I set the Mode to SPA (not POOL) and increase the setting to a...

Re: Digital Raypak RP2100, Low Nox Heater Not Heating Correc Jasonlion, thank you for your assistance... and patience.

Re: Digital Raypak RP2100, Low Nox Heater Not Heating Correc The flame is staying on all the time... and so is the "flame symbol" on the Control Panel. Question: Is there an inspection plate or site plate that I can access that will allow me to see the full flame on the burner. I can't...

Re: Digital Raypak RP2100, Low Nox Heater Not Heating Correc Thanks for the feedback. The heater is only connected to a SPA, so no other valve adjustments in the system. Is it possible that the flow of water through the heater is too fast... such that the burner cannot heat the water to spa...

I have a Digital Raypak 2100 that I am putting back in service after years of offline. Everything works as expected... pilot light, burner and controls. However, the water temperture in the SPA mode never gets above 80 degrees. I can see part of the burner flame and it appears to burn blue...