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

1 Answer

Error code 3E

I've had my tankless heater for about 3 years now. It was working fine and then just stopped working, no hot water, no water at all. The cold water pressure, electricity and gas supply are all fine. I removed the cover and checked the 3 fuses that I could find - all good. I had this problem once about a year ago but the unit just began working again. This time the remote flashed "21" and then "3E". Any suggestions?

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Sergeant:

    An expert that hasĀ over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 426 Answers

Check the air intake

Posted on Nov 06, 2013

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
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.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
odiebugs
  • 949 Answers

SOURCE: No hot water from tankless water heater. Bliniking Readout

http://www.rheemtankless.com/content/tankless/rheem/help.shtml

This is there website.Above.
Use the live chat to ask them, the code you listed does not seem to correspond to there code list, the only code that does is code 76,
which is a problem with the remote control not talking to the unit.
So your best bet is to tell them the error.

Posted on Apr 07, 2009

  • 2 Answers

SOURCE: tankless water heater error code 11

I was having the same problem untill I reallized it was my venting system. Test the water heater with no vent on top. Disconnect the vent pipe from the water heater and try turning on the hot water. the water heater needs a special adapter to vent the direct vent water heater. One other thing you can check is the gas pressure in your home. You have to have between 7 and 8 WC (water Column) for the tankless water heaters. You can call your gas supplier to find out what you have.

Posted on Jul 04, 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

  • 244 Answers

SOURCE: I have a paloma tankless water heater about 3

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.

Posted on Nov 06, 2009

  • 244 Answers

SOURCE: richman gas lp tankless hot water heater. used for

I had the same problem with my Paloma a year and a half after installation...contacted Rheem\Paloma\Richman 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.

Posted on Nov 11, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Error c4-15 what does that mean


Before calling service technician, copy following link for troubleshoot resources:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

C4 can range from failed PC Board to lime build-up inside heat exchanger
Error 15 is 'heat exchanger is too hot', clogged heat exchanger, restriction in cold water inlet, temperature set point too high.
If you recently changed temperature setting, then that might be cause.
Tankless require monthy-to-yearly maintenance to avoid common error codes.
Delime tankless and clean water filter, keep temperature low.
Never install tankless water heater is best way to avoid complications of expensive water heater that is maintenance heavy, hard to diagnose, expensive to fix, etc.
Never expose tankless to more than 11 grains hard water.
http://waterheatertimer.org/pdf/Rheem-CondensingTankless-maintenance-2012.pdf
http://waterheatertimer.org/pdf/Rheem-De-lime-tankless.pdf

Aug 26, 2012 | Rheem Tankless Hot Water Heater...

1 Answer

Error code e2 on Rheem tankless water heater


e2 is not shown among common error codes:
Error e2 might be: Brownout condition or too low of voltage to thermostat. Double check wiring and check for 24 vac between R and C. E2 will clear 15 sec after proper voltage is restored.

Before calling service technician, open following link for Rheem troubleshoot resources including Rheem chat and typical generic manuals and common error codes:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Model number and serial number are required for Rheem contact, and then they tell you what error code means without saying how to fix it, and then tell you to call service technician.

Tankless water heater manuals each say to have qualified technician perform yearly service. Most causes for common error codes are covered by yearly service.

Yearly service is fairly standard in the HVAC and water heater industry with advancement of high-tech 'energy' saving appliances. Of course all costs are energy, and the service call probably costs more that the 'energy' saved by energy-saving appliance. But with high tech stuff like tankless, it is good to have a reliable service guy who knows your machine.
http://waterheatertimer.org/images/Tankless-wiring-1200.jpg

Jul 27, 2011 | Rheem Tankless Hot Water Heater...

1 Answer

Code 11


Before calling service technician, open following links for Rheem troubleshooting resources including error codes.
Error codes are considered start-point for troubleshooting.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html
http://waterheatertimer.org/pdf/ErrorcodeTroubleshooting.pdf

Error 11 is no ignition.
This problem can probably be solved by routine yearly maintenance shown in instruction manual which recommends: Yearly cleaning, adjustment and inspection of burner and combustion parts.
The yearly maintenance would check incoming gas supply, venting, wiring and grounding, and burner and ignition parts.
All gas water heaters today require same maintenance: tankless require yearly, and tank-type require periodic (1-3 years)

Jul 03, 2011 | Rheem Tankless Hot Water Heater...

1 Answer

I have a Bosch Hydropro? i think is what it's called. I have no Hot Water Though? But the Main Flame is Lit.. Pilot light i think is what it's called. The other flames that go with it aren't...


Before calling service technician, open following link for Bosch troubleshoot resources including on-line chat and some manuals. Don't forget, fixya also offers interactive chat to determine exact model number and what you've done so far to repair problem.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

The problem might be as simple as catching up on maintenance. For example the burner and combustion parts require yearly cleaning according to most tankless and tank-type water heater manuals.

Since you are not getting error code, then problem might be crossover in single handled faucet or defective check valve, or clogged water filter. Link above shows 'no error code' pdf with long list of suspects including water pressure to water heater venting.
The next step would be checking gas pressure, make sure gas valve is turned on, and then check electrical connections.

Add a comment and say what you did to repair water heater so others with same-similar problem have your experience on hand.

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.

Jun 02, 2011 | Bosch & Tankless LP Hot Water Heater

1 Answer

Error code C4 76. Water heater shuts off (only with shower use). Will reset and work 4-5 min. then off agin. works fine from sinks. Unit is app 3 years old and did work fine.


Before calling service technician, open following link for Rheem tankless resources, including error codes and general help for homeowner.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

C7 76 is communication fault with remote control.
Remote is connected to tankless with a wire.
Usually you remove wires from terminals on tankless, and see if tankless functionality returns.
If tankless works fine, then it will heat to default 120 degrees.
Clean terminals and put them back.
If problem returns, then problem is then narrowed to bad wire, bad remote control, or problem inside tankless.
Since new remote control costs about $99, it might be cheaper to have service technician review the problem and catch up with maintenance.
Error codes are considered starting points for troubleshoot since error can have different soultion than same error on another unit.

Read manual for advisories, error codes, and required maintenance.
For example tankless might require monthly water filter cleaning, and yearly de-liming, and yearly burner cleaning.
Your service technician can advise what is typical for your region, since altitude, incoming water temperature, quality of water, water pressure, venting, are factors for maintaining water heater.

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.

May 25, 2011 | Rheem EcoSense by 7.4 GPM Tankless Water...

1 Answer

Error code 13, replace burner and vent kit, still getting error code Rheem tankless hot water heater


Before calling service technician, open following link for troubleshoot resources:
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

The same error code and problem on one person's tankless unit can have different solution than another tankless unit.
This is because tankless require perfect operation of parts and sensors while being affected by incomming water and gas issues, and venting, plus plumbing factors.
Replacing one part is not always the fix, since that part interrelates with so many other parts, each affected by the operation of the other, and operation of the chip and integrity of wiring and wiring connections.

Read manual for yearly maintenance requirements, and calculate those costs when figuring anticipated $1-8 monthly energy savings from owning tankless.
Check that your region has reasonably-priced, qualified service technician for your brand before buying tankless. And check part list and cost of parts before buying any water heater because these factors weigh-in after a few years of operation.

Repair most tankless problems yourself, same day, any brand, for around $330.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

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.

May 11, 2011 | Rheem Tankless Hot Water Heater...

2 Answers

I have a Paloma Whole Home 7.4 GPM Water Heater, it is a propane heater. I bought this heater in 07 and I get the same problem ever year. When the weather gets cold and the water is cold the hot water...


If incoming water is too cold, tankless might not have enough time to heat the water as it flows by insince the heat exchanger.

1) You can passively preheat cold water using staging tank, or tampering tank.
http://waterheatertimer.org/Tempering-tank.html

2) Buy old water heater from plumber that is not rusted out.
Replace anode rod to stop further rust.
Rinse tank with water and hydrogen peroxide to kill bacteria that results from anode rod.
http://waterheatertimer.org/Replace-anode-rod.html
Clean sediment out of bottom:
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html

3) Don't forget, a tankless heater needs to be de-limed each year, and cannot be exposed to more than 11 grains hard water.

4) Since all costs are energy, when you get tired of messing with tankless.
http://waterheatertimer.org/How-to-install-gas-water-heater.html
http://waterheatertimer.org/images/Compare-water-heater-parts.jpg

Add a comment for more free help.
Also 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.

Jan 18, 2011 | Rheem Paloma PTG-74PVN / RTG-74PVN...

2 Answers

Noritz tankless water heater not producing hot water


I called Noritz error code 16 is a overheat problem. Noritz say's to flush your coil with vinegar or CLR.
Use a small pump to recirculate the CLR or vinegar through the system for 45 minutes and flush with fresh water. This worked for me.

Jan 04, 2009 | Noritz 6.9 Gallon Residential Direct Vent...

Not finding what you are looking for?
Rheem Paloma PTG-74PVN /  RTG-74PVN Natural Gas Indoor Logo

60 people viewed this question

Ask a Question

Usually answered in minutes!

Top Rheem Water Heaters Experts

Donni Steen

Level 3 Expert

659 Answers

gizmonix

Level 1 Expert

13 Answers

Jim Goldsmith
Jim Goldsmith

Level 3 Expert

1889 Answers

Are you a Rheem Water Heater Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...