Trying to figure out my tankless unit out. I have it set up for a hydronic in floor system, closed loop. 3 loops under 270' ea, expansion tank and circ pump. I can get it up to 15psi and it initiates the circ pump but it never fires anymore, I had it running for 5 minutes initially, then intermittently for a couple hours and now, 2 weeks later, it doesn't do anything. Coded p1 and 11 and now 76, comm error, now I am at a loss.
Rheem closed loop in floor heating
- Thread starter robbied
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Fitter30
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What control are u using to cycle the pump turn the boiler on? Complete model of boiler ? And some pics of boiler and piping.
