Question about Rheem RTG-74PVN-2 Natural Gas Pronto Whole House, Natural Gas, Tankless Wat
Our water heater was shutting off after about a minute of use. I called the Rheem support number and they told me:
1. They wouldn't support me because I used flexible pipe for the gas line -- it had to be black pipe. The fact that the manual said flexible pipe was OK for lengths under 36 inches was irrelevant to them.
2. The error code represented some sort of blockage or gas flow problem. They sent me a 10-page PDF file detailing the steps necessary to take apart the unit, remove the burner, and clean everything.
After spending about four hours disassembling the unit I came across the ODS (Oxygen Depletion Sensor) and found a cocoon of some sort inside. Some critter had crawled up there and made a nest inside the 3/8" pipe, preventing the system from properly detecting oxygen levels and causing it to shut down.
I scraped the cocoon out with a small tool, then ran a ribbon of steel wool through the pipe to clean it thorougly. After reassembly everything worked perfectly, and now we get hot water even faster than ever!
The increased performance me think that the cocoon may have been in there before we even purchased it, but might have shifted or worked loose and finally caused an error.
1/ overheat stat 2/ fan 3/ microswitch 4/diaphrapm valve best of luck
Posted on Oct 24, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Feb 14, 2014 | Rheem Paloma Tankless Water Heaters...
Sep 11, 2013 | Water Heaters
Jan 30, 2013 | Water Heaters
Mar 20, 2012 | Rheem Tankless Hot Water Heater...
Sep 07, 2011 | Rheem Tankless Hot Water Heater...
Jul 13, 2010 | Rheem Tankless Hot Water Heater...
Oct 16, 2009 | Rheem Paloma PTG-74PVN / RTG-74PVN...
Jan 11, 2009 | Rheem RTG-74PVN-2 Natural Gas Pronto Whole...
677 people viewed this question
Usually answered in minutes!