Fault Code 07: Circulation flow rate has dropped below 2.1 gpm.
Fault: Circulation flow rate has dropped below 2.1 gpm.
Applies to: Rinnai Infinity 26 Touch REU-AM2626, WDLInfinity 26 REU-AM2626, WDInfinity 20 REU-AM2024, WDInfinity 16 REU-AM1620WD, Infinity 12 REU-AM1220 WD, B26 REU-A2626 WB, B20 REU-A2024WB B16 REU-A1620WB Units.