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

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It won't heat and says, 21 and then A1. If the gas is empty, do I need to fill my main propane tank outside?

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That would be a YES...you need to make sure the tank is serviced and at the proper levels...

Thanks for trying Fixya.com

Mike...

Posted on Feb 07, 2010

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Posted on Jan 02, 2017

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1 Answer

Switched propane tank and no hot water why


The pilot light went out because the gas supply was interrupted? They usually have two tanks and an automatic switchover in a domestic situation. You change the empty one before the full one runs out.

May 24, 2016 | Water Water Heaters

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I'm temporarily staying in our RV while our house is re-furbished. The water heater is only working intermittently. Can anybody help me?


RV water heaters are mounted against an outside wall. Go outside and look for a removable cover that has a mesh vent installed.
Open this cover and the water heater should be inside.

If the water heater is propane your propane tank may be low of fuel. Also very cold weather may not let the propane produce adequate vapor to fuel the water heater. A low level of propane can make this problem worse.

If the water heater is electric, you may have too large a wattage draw from other appliances, when the water heater is trying to heat. Turn off items such as hair blowers, AC, and Microwave when the water heater is on. If a generator is providing the electricity it may not have enough output. If shore power is providing the electricity you need at least 30 AMPs.

Apr 20, 2016 | Water Water Heaters

1 Answer

Hot water heater water, went out main line of house that enters house


You did smart thing turning off water and gas.
Play it safe.

Your water heater will NOT explode.
Conduct routine maintenance so water heater lasts longer. If plumber says you need new heater, then post question on fixya and include information showing on tank label on side of tank.
Also include why plumber says to replace.
Get another plumber.

Call city utility company to determine source of noise.

Dec 01, 2012 | Whirlpool Water Heaters

1 Answer

Last year we had all the siding on our tv, trailer, replaced due to hail damage. When we finally got our trailer back from the rv repair shop we have had nothing but problems with our Atwood hot water tank...


Immediate danger!
You have a gas leak.
Propane is heavier than air and will settle on the floor.
The floor can be covered and ignite and you will not smell it while standing or sitting or laying in bed.
Absolutely open the door and leave trailer. Turn off the gas to the heater if the shut-off is outside.
Possibly you have a bad gas control valve. This should be repaired professionally.

Aug 08, 2012 | Water Heaters

1 Answer

Low water pressure


Hi Bob,

You can determine if the tank is the problem by connecting a garden hose to the drain that is provided on most water heaters. Before doing this, be sure to shut of the electrical supply to the heater - otherwise you can damage heating elements if an electric type or waste fuel by heating an empty tank if a gas / propane fired type.

If you get a slow flow out of this drain, it means that somewhere in the cold water supply side to / in the tank - there is a problem. Inside the tank, the cold water is delivered by a "dip tube" that distributes the cold water to the bottom in the tank. Dip tubes are used in both electric and gas / propane fueled heaters. Here's a cut away view of a typical tank:



6_29_2012_9_57_32_pm.jpg

If the tube is clogged, or there is build up, scale or debris in the supply (cold water) side of the heater, flow rates will suffer. Likewise, if there is a problem with the output of the tank, it will directly affect flow as well.

If you get a good flow rate from the drain, then the issue is going to be on the hot water output side of the heater. Again, the same build up, scale, debris issues on the hot water out put pipe will cause problems with flow. Typcial tanks do not have dip tubes for the hot water side of the tank - as taking hot water from the top of the tank is most desireable and is furthest away from the cold water that rushes in to make up the hot hot water going out.

There's nothing really in the tank itself that can cause issues with flow outside of the dip tube, and piping to and from the tank.

Good luck!

Jun 29, 2012 | Water Heaters

1 Answer

Dsi flt light keeps going on and the black water light says full when we just emptied it.


DSi light coming on is to alert you that the water heater didn't light on propane for one reason or another. Sometimes people just forgot to turn propane on or are out of propane. What happens when you shut it off and turn it back on? (listening and watching from outside with cover open) DO you see or hear sparking?

As far as black water showing full when just emptied, it is most likely a piece of toilet paper inside the tank that is hanging up from top probe on inside of tank, and touching lower probe, thus giving a full reading. This is very common, at all levels. You can buy a rinse wand and rinse inside of tank through toilet to try and wash it off, or live with it for now, and add lots of water or cleaner deodorizer to tank , or buy probe cleaner, or even the old standby, some laundry soap added to tank , then fill tank close to full with water and rock trailer to swish it around, then drain it. Most times, waiting until next dump, and adding lots of water beforehand, will fix it.

Jul 11, 2011 | RTO Atwood DSI-RV Water Heater-6 Gallon

1 Answer

Empty boiler


Turn main water off to the water heater, it may be a valve on cold side coming in to shut off. Next turn power off to the heater and drain the tank the drain will be located near the bottom of the tank.
You will need a water hose to connect to the drain to run water outside. Open a faucet hot side to allow you to drain the tank.

Upon reinstall connect the tank up and fill tank and open up hot side on one faucet at a time to purge out air from system before turning power back on. Make sure you have water flowing from each faucet's hot side before turning power back on.

Jul 02, 2010 | Rheem 80 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

My refilled 60 # propane tank leaked and then stopped flowing.


Rick, if the tank is normally plumbed for a horizontal position, and you have it standing vertically, then you are feeding liquid propane to your pilot light, hence the frosted hose etc., and a tendency for the pilot light to go out as it has too rich of a fuel to burn. There should be no vent to allow air in as propane is pressurized, and only attains zero pressure at 40 below zero farenheit. The valve you speak of should have been the liquid vent valve which is used during filling only, and is closed during any other use. Your supply valve should be in the wide open position. The pressure relief valve is only operational when the tank has been overfilled or overheated. You should have a pressure regulator between the tank and the appliance you are trying operate. Hope this helped. Marvin

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2 Answers

Palaoma ptg-42pvn flashing a1 21 code


error code 21 is malfunction of air intake filter switch. You need to check and make sure the air filter door is properly seated and that the front panel is properly installed

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1 Answer

Turn on water the electronic ignition not coming on


The tankless water heaters require larger gas supply lines because of the on-demand consumption. While I don't know your units rating, most Propane Tankless Waterheaters require 2" supply lines. Moreover, pressure is directly related to temperature which sounds like your problem entirely; consider the run of the gas pipe from the tank and the ambient temperature. Now you see why plumbing is a hard profession to fake... =)

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