20 Most Recent Rheem Paloma PTG-42PVN / RTG2-42PVN Natural Gas Indoor Questions & Answers

http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html#error Error codes and troubleshoot on link above Catch up on maintenance Hire service technician Gene Water Heater Timers Save Money If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

http://waterheatertimer.org/How-to-fix-water-heater.html Delime tankless? http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html#delime Gene If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Copy following link for troubleshoot resources:http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Copy following link for Rheem-Paloma tankless troubleshoot and error codes:http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.htmlhttp://waterheatertimer.org/How-to-install-gas-water-heater.html#installIf 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. If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

I would try www.searspartsdirect.com

This error code will occur for two reasons:1. The heater has lost its programming and you will need a new programming chip from Rheem. (866) 720-20762. The igniter module is located behind the Printed Circuit board and will need to be relocated.

Question is not clear.
Does all water flow stop? Or does hot water flow stop?
Open following links for possible help.
http://waterheatertimer.org/Crossover.html
http://waterheatertimer.org/Low-hot-water-pressure.html
http://waterheatertimer.org/pdf/No-Error-Code.pdf
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Add a comment for more help.

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3" category III stainless for special venting

Tanklessking shows Category III stainless steel vent kit for this model
3" vent
http://tanklessonline.com/rheem-water-heaters-RTG42.html

ptg-42-pvn has minimum 31,000BTU and max 118,000BTU
Max water temperature 120 degrees F
Spec sheet says: 3" special venting
http://www.palomatankless.com/products/42/specifications.html

Hart and cooley show special vent 3" stainless thru-the-wall vent
http://www.hartandcooley.com/specialgasvent/PDF/851515%20Tankless%20Water%20Heater%20Installation%20Vent%20Kits%20sell%20sheet%20-%20HC%20-%20low%20res.pdf

Hot water sources shows thru-wall or thru-roof
http://www.hotwatersource.com/RTG42PVN-Rheem-Indoor-Natural-Gas-Tankless-Water-Heater/RTG42PVN,default,pd.html

http://waterheatertimer.org/pdf/Tankless-roof-vent-installation.pdf

Multiple error codes can mean different things, including bad PC board.
C2 13 might be the oxygen sensor. -0 and no operation indicates bad board, but other things might be notched into same problem like loose connections.
Error codes are starting point for troubleshooting.
Before calling service technician, open following link for Rheem-Paloma troubleshoot resources including Rheem chat.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

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That is good technical question for Rheem.
Open following link for Rheem tankless resources including chat, possible manual, and typical service manual.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

May 2011. If you find exact information from Rheem, then add a comment to this thread so others with same question can find possible answer.

Upvote the help.
And take advantage of fixya expert assistance live.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

I have had a few experiences with the tankless water heaters, the only time they have turned themseves off while in service was due to reduced water pressure (perhaps someone turns on another water source while the shower is running) or, a reduced flow/supply of gas/propane. (Perhaps another appliance is turned on.) In one case for me there was residue on the flame rods/electrodes that was preventing the flame to remain on at the required rate. Good luck :)

get ready to pull that one out and get a different brand

worked on mine for a year and a half and replaced everything and the unit would still not run.

You need a 5 gallon bucket and a small sump pump that connects to a garden hose. The hose connects to the inlet of the water heater and and then run a second hose from the hot water outlet into the bucket. Pour in about a gallon of white distilled vinegar. Turn the pump on and let the vinegar run through the heater for 15 minutes. Reverse the hoses and run another 15 minutes. reconnect the heater and test the water flow. You may need to repeat these steps several times to remove enough debris and buildup.
Installing a water softener treatment system will prevent the buildup from occurring so fast, if ever again.