Question about Rheem Tankless Hot Water Heater Rtg-74pvp-2 7.4 Gpm

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Richmond RMTG2-42PVN is shutting off and

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

gary1121
  • 332 Answers

SOURCE: Paloma PTG 74PVN Tankless Water Heater

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

snap101
  • 117 Answers

SOURCE: Tankless Paloma NG hot water heater shuts down

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

  • 58 Answers

SOURCE: Paloma tankless water heater. Keeps

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

mrhotandcold
  • 248 Answers

SOURCE: water heater shuts down and flashes c4 76

overheat stat or fan

Posted on Oct 15, 2009

  • 244 Answers

SOURCE: Rheem water heater turns off by its self

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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1 Answer

I have a Richmond tankless water heater and it has L1 error code...can somebody help me with this?


Might be able to help. Except L1 does not show on any error code file.
Copy following link for Rheem Richmond Ecosense etc computer water heater troubleshoot resources
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html
Are you sure the error is not IL? Delime tankless.
Or UL flashes and indicates reset.
Or CL flashes and indicates fault history is cleared.
Or error 11 combustion failure? Call for service.
Or P1? Low water pressure, clean water filter check for leaks and crossover caused by bad single-handled faucet cartridge.
I recommend calling Rheem to find local technician who is qualified to work on tankless computers. Tankless are not ordinary water heaters, and they require continual maintenance to avoid common error codes, especially as unit gets 2-3 years old, after warranty has expired.
The required maintenance and expense of repairs, and general fact that people cannot make their own repairs, make tankless computers a bad choice for heating water.
If unit is 4-5 years old, it might be best to install tank-type heater for $385 from Lowes and cut losses.
http://waterheatertimer.org/How-to-install-gas-water-heater.html
Gene
h

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1 Answer

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1) Type and brand water heater unknown.
Copy following link for Rheem-Richmond tankless error codes:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

2) Question posted under Richmond tank-type power vent.
Error code 24 appears to be Rheem-Richmond tankless water heater.

3) Add a comment with more information about type, brand, age of water heater including what you have tried so far.

4) Call service technician to catch up on required yearly maintenance.

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I have a recently installed richmond water heater. When the shower is running and someone turns the faucet on in the kitchen the water gets drastically colder in the shower. We didnt have that problem with...


Which type Richmond water heater?
Is this a tankless water heater or tank-type?

Tankless are notorious for 'cold water sandwich' under exact conditions you describe. You might need tankless with larger BTU burner.
Don't install a tankless.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

If you have tank-type water heater, then I suspect a clog in the hot water line, or single-handle faucet cartridge in show is going bad.
Same problems can contribute to tankless problems.
http://waterheatertimer.org/Low-hot-water-pressure.html

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Before calling service technician, open following link for Rheem-richmond tankless troubleshooting resources:
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I have a Richmond tankless water heater PTG2-42PVN. It will work for a very short time & then I get an error code of either C4 or C7. The remote control alternately flashes IL - 120

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in order to reset the unit you will have to turn the temp all the way down then unplug the unit for 5 min,, remember it is a computer and it knows, after plugging in back in after the five min, reset the temp open up a fauset while doing this, that way it will be regestering the flow of water to set the temp by

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