Question about Rheem Paloma PTG-74PVN / RTG-74PVN Natural Gas Indoor

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Water pressure past my paloma water heater is not as good as the cold side.

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This could be a flow issue, how long has it been installed? Calcium builds up in any brand very quick and it might need de-scaled. We sell a do it your self kit and solvent called flow aid, safe and easy to use available at heaterup.com

Posted on Jul 14, 2009

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Posted on Jan 02, 2017

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Thermostat is set @120 then drops to 65 and starts flashing. Water get cold. What is the reason . Thanks


Rheem Paloma tankless computer? No error code? One possible cause; Crossover caused by bad single handle faucet cartridge drawing cold water into line causing shut down of tankless burner?
Copy following links for resources:
http://waterheatertimer.org/Crossover.html
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html
Add a comment as needed.
Gene
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Aug 19, 2013 | Rheem Paloma PTG-74PVN / RTG-74PVN...

1 Answer

Code P1 appears in my Paloma gas water heater


Copy following link for troubleshoot resources Rheem/Paloma tankless:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html
http://waterheatertimer.org/images/Rheem-service-valves.jpg
http://waterheatertimer.org/Crossover.html

Error P1 is not enough water flow.
Clean water filter located on cold water inlet at top of cold pipe when cold enters unit
Test single handle faucets for crossover
Check if faucet can fill 1 gallon can in 30 seconds.

Apr 15, 2013 | Water Heaters

1 Answer

I have a paloma tankles water heater model #ptg-42pvn i am getting an intermitent error code C4,12. what is the problem?


Copy following link for Rheem-Paloma tankless troubleshoot and error codes:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html
http://waterheatertimer.org/How-to-install-gas-water-heater.html#install

If unit worked before: Maybe bad PC board. Maybe lack of required yearly maintenance.
Common error codes can be caused by not following maintenance protocol such as cleaning combustion parts, checking gas pressure, checking venting, and air intake, bleeding gas line etc.
Too bad Rheem-Paloma manuals do not show HOW to conduct this maintenance, leaving customer with many unknowns, and no way to oversee that maintenance performed by hired technician is complete, and matches recommended maintenance.
Sell unit on ebay, and install tank-type gas water heater.

Mar 20, 2013 | Rheem Paloma PTG-42PVN / RTG2-42PVN...

5 Answers

I have a paloma tankless water heater about 3 years old model PTG-74PVN and it works for 2 minutes and shuts off with error code C4 and 13 flashing. (City water pressure is fine)Can anyone help? Thanks...


I had the same problem with my Paloma a year and a half after installation...contacted Rheem customer service (800-432-8373) and they recommened a local installer in my area. The technican diagnosed the problem as the "flow control valve"; he managed to get Rheem/Paloma to cover the part under warranty...I only had to shell out the money for the install.

Nov 03, 2009 | Rheem Paloma PTG-74PVN / RTG-74PVN...

1 Answer

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

May 18, 2009 | Rheem Paloma PTG-74PVN / RTG-74PVN...

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