Question about Rheem Tankless Hot Water Heater Rtg-74pvp-2 7.4 Gpm
Richmond tankless water heater Model RMTG2-42PVN is shutting off and alternately flashing C4 and 76. We turn back on, reset temp, it works for a while and the same thing happens again.
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Posted on Jan 02, 2017
did you check the filters on the the water valves, i am not exactly sure about your codes that are shoeing but if you could read it and post them, i know on some of the units 76 means there is low water pressure and the filters are behind 2 caps one on each side above the shut off valve take off the caps and remove the screens, clean them and replace them ,, make sure you turn off the water on both side first or you will get wet
Posted on May 29, 2009
have you checked the error codes on the heater?
you can do this by powering off the controler and pressing the up and down keys for a few seconds. this should take you into the diagnostics mode scroll using the up and down keys till you find the one that has the letter E on it and that will give you the last 8 error codes write them down and get back to me
Posted on Jul 29, 2009
I am not familar with this brand of heater but it has been my experience with all heaters that the codes and explanation are located inside the panel door. You'll proably have to use a screwdriver to take the cover off.
Posted on Oct 07, 2009
Flashing code 76 is lost communication between the remote and the burner control assembly CCA (circuit card assembly). The CCA is still under warranty if purchased within the last 3 yrs. Contact Rheem customer service and have your Mod. and S/N available....explain to the agent you are recieving - flashing code 76...they'll walk you through the process.
Posted on Nov 01, 2009
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