Question about Rheem Paloma PTG-42PVN / RTG2-42PVN Natural Gas Indoor

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What should the min and max manifold pressures be on my tankless water heater PTG2-42PVN. I'm under 3200 feet in elevation.

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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.
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Posted on May 28, 2011

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Posted on Jan 02, 2017

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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

Aug 06, 2012 | Rheem Richmond

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Indoor tankless 74-pvn. power went off and has returned. get error code 24 when try to power on


Open following links for Rheem troubleshooting resources, including Rheem chat, error codes, and possible manual.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html
http://waterheatertimer.org/pdf/Tankless-maintenance.pdf

Error codes are considered start-point for troubleshoot.
Error code 24 is malfunction of operational switch: press max or min button on PC board to reset, -or- replace PC board.
Max-min button is sometimes located above dip switches, and can be 1 button that is rotated with screwdriver or 2 separate buttons. Look at wiring diagram in manual that came with product.

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

Aug 14, 2011 | Rheem Tankless Hot Water Heater...

1 Answer

Vibrating when the heater starts to heat water


Things to Check:

1. incoming gas pressure (minimum 5" when unit firing)
2. Make sure damper on top of unit isn't sticking
3. check vent length and #elbows versus installation manual specs
4. if above 2000', disconnect high elevation termination

If these all check out, you'll probably need to do a manifold adjustment. Call Noritz for assitance on this.

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I have a ge smartwater filter system #GXWHO4F. My problem is that since system was installed the water pressure and the water volume drops alot when more than one faucet is turned on.The filter system...


Filters always reduce pressure.
You can add a pressure tank between filter and tankless.
Tankless are sometimes like bowling on a ship.

Add a comment saying how you fixed problem.

Fix most tankless problems yourself, same day, all brands for $330.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Absolutely feel obligated to upvote the free help.
Or take advantage of fixya paid help.
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.

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Bosch 1600H-NG Natural Gas AquaStar AquaStar Natural Gas Tankless Water Heater. Problems with constant hot water. The heater turns ok but (i think) when i turn on the cold side the heater stops. at...


Possible flow sensor issue. Check to see if your water pressure fluctuates a lot or is fairly steady. These units are sensitive to the pressure. take care.

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Code 1L on the pad, I flushed with pure venegar. for at least 5 hours the problem persist, help


open cover.. find buttons min/max press nim then press mas and then hold min and max presses for 5 seconds or so. Power off controller and power back on..You have reset your fault code til next time.

Jan 28, 2011 | Rheem Tankless Water Heater Main Remote...

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What s de minimum working pressure for a tempra 24?


Hello. let me help you. The water pressure is what it is in the house. In other words, the tankless water heater doesn't increase the pressure of the water, it only heats the water. There is no official minimum pressure but the minimum pressure you would be happy with in any home would be 20 pounds per square inch, PSI.

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Water Temperature Fluctuates


no the tub faucet is the only faucet that is wide open you might have to not run full blast on the faucet , your tankless water heater is under sized for the application, to many gallons per min going thru the unit, look at the rating chart for your unit, the r94 is only 9.4 gallons per min, and a tub faucet can be upto 5 gallons per min, depending on the faucet,,

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