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What is error code 5 on rheem tankless water heater rtg-74pvn-1

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Here is the users manual for that unit. it will guide you through the codes.
http://www.plumbersurplus.com/pdf/05223.pdf

Posted on Dec 29, 2010

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I have a Paloma PTG-74PVN-1 high volume tankless water heater installed in 2007. Recently, I am having hot water temperature problem, no error code is displayed, but it can not heat the hot water beyoun...


Even though you are not getting an error code, there are may be some diagnostics in the controller that can identify whether it's an electronic (controller/sensor) or a heat exchanger issue. I would contact Rheem tier-2 support.

Jul 01, 2014 | Rheem Paloma Tankless Water Heaters...

1 Answer

What does code 36 mean


Error code 36 does not show in Rheem tankless manuals.

Copy following link for general troubleshoot and error codes, and Rheem contact information:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Error code 36 does not show in any resource, including 2008 service manual, or 2012 product manual.
Check that remote control display is illustrating the correct number.
For example there is error code 35.

Oct 19, 2012 | Rheem Paloma Tankless Water Heaters...

1 Answer

Rheem RTG-74PVN-2 code c776


Communication fault with remote, but also bad PC board.
Copy following link for troubleshoot resources:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Oct 13, 2012 | Rheem Tankless Hot Water Heater...

1 Answer

Error code C4 76


Error 76 is communication fault with remote control, or bad PCB board.

Copy following link for Rheem tankless troubleshoot:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Call Rheem, and they will recommend service technician.
800-432-8373

Make sure your unit is serviced yearly to prevent common error codes. Which defeats the robust $100 expected yearly savings from owning a tankless water heater.

Oct 13, 2012 | Rheem Paloma PTG-74PVN / RTG-74PVN...

1 Answer

I have a Rheem rtg-74pvn-2 tankless water heater installed in 03/09. Intermittently the hot water stops when only the hot water tap is on. No error codes appear. Bill W.


Before calling service technician, open following links for resources including Rheem chat and possible manual:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html
http://waterheatertimer.org/pdf/No-Error-Code.pdf
http://waterheatertimer.org/Crossover.html

Typical tankless manual says to have yearly service which includes checking household plumbing, gas supply, vent and condensation, check sensors for loose wires, clean and inspect burner parts and ignition factors etc.

Aug 04, 2011 | Rheem RTG-74PVN-2 Natural Gas Pronto Whole...

1 Answer

Rheem tankless rtg 74pvn - heater hot water shuts


This is something you will have to contact rheem about due to the fact you don't have a fault code

Jul 13, 2010 | Rheem Tankless Hot Water Heater...

2 Answers

Rheem Tankless wh model rtg-74pvn shuts off error code c4 76


Contact Rheem; the Burner control unit has lost comm with the remote...the part is warranteed for up to five years.

Nov 01, 2009 | Rheem RTG-74PVN-2 Natural Gas Pronto Whole...

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