Question about RTO Atwood DSI-RV Water Heater-6 Gallon

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I have RV from 1979. My gas water heater is broken. It has a hole in the inner tank in the aluminium. Is it possible to repair it? Do you sell new ones? What does a new one cost? Can I buy it in Holland?

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If you have someone who actually knows how to weld aluminum, you may be able to dis-assemble it and have it welded then pressure tested. Normally we just replace tank, or entire water heater, depending on age. Being it's a 79' it wouldn't be uncommon for other parts to need replacing now, or soon as well. If the price difference isn't too bad, I'd certainly buy complete.
Here's a link you may want to check out there.

Posted on Mar 27, 2011


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

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Posted on Jan 02, 2017


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If they are on outside of tank , I'm thinking your new tank has motor-aid feature as well. That is used to circulate coolant through from engine of motorhome while driving and it keeps water heated. That feature usually adds to price of tank. Hope you didn't pay for some feature you"ll never use.

Jul 13, 2014 | RTO Atwood DSI-RV Water Heater-6 Gallon

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Water works on electric but not on gas it will light but will not keep running

It sounds like your thermal coupler needs to be replaced or maybe just cleaned. P.S. have you tried a different LP tank If its new or the person didn't pressurize the tank when filled you may not have pressure enough to keep the water heater lit.

Apr 10, 2012 | RTO Suburban Rv Water Heater Dsi Gas Valve...

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Try spraying some WD-40 in hole where thermocouple attaches to gas valve, then twirl a small piece of steel wool in your fingers and insert it in that same hole and twirl it as you push it in to clean surface where thermocouple makes contact. Then blow out with compressed air if possible and then re-install thermocouple fitting snuggly. If that doesn't do it, you'll have to get a new gas valve/control.

Jul 21, 2011 | RTO Atwood DSI-RV Water Heater-6 Gallon

1 Answer

I have to replace ag6a3 inner tank but it will not come out the opening can i sawsall it in half

If you removed all the screws and it still won't come, it's probably the cardboard and insulation holding it. Peel it off, carefully if you want to save it, otherwise yank it out of there. If it's in an RV, they are installed through that same hole from the outside. Perhaps yours blew wide open and it wedged? Propane lines etc are all off?

Jul 10, 2011 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

Heater says lower sescor failur what is that

1) For the best answer possible, post what type water heater you have.
Gas or electric. Tank or tankless. Undercounter, tabletop, RV, indirect, solar-assisted, etc.
Information should be on product label
Give as much information as possible so experts are not guessing.

2) If you give brand and model number (not serial number), we can possibly pull a manual that could match your product and simply read the troubleshooting steps alongside you.
This will help us give the do-it-yourselfer as much help as possible.

3) Pull out your product manual. Look at your manual for troubleshooting steps, error codes, and remedies.

4) Go to manufacturer's website and look for manual.
Most manufacturers post manuals, and those that don't are selling another manufacturer's product.

5) Whirlpool has contact us page:

6) If this is Whirlpool electric-tank-type energy-smart, then the error code probably means that temperature sensor locate just above lower element needs to be replaced.

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Feb 05, 2011 | Whirlpool Water Heaters

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I have a G6A7 heater and the alluminium tank has split due to water freezing, can i get just the alluminium tank? Helen

Yes, you can buy just a replacement tank. Any RV dealer/parts should be able to give you a price, or even check campersworld site. Please keep in mind that it is a fair bit of labor involved in changing just the tank because you have to remove all the parts from old one, and re-install them on new one. If your water heater is getting on in years, it sometimes pays to replace complete unit with new gas valve, pressure relief, burner etc., already installed, and warranty comes with it. I've seen older ones get replaced and then gas valve goes next, etc etc, and it ends up costing more in the end. I'm not trying to sell you on this idea, just advising from experience.

Jan 14, 2011 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

Water gets cold after 3 min.s

1) You have to give more information to get accurate answer about water heaters.
Is this a gas or electric water heater.
What type of heater: tankless or tank or hybrid or power vent or indirect boiler or instantaneous under-sink or RV heater?
What symptoms have you noticed prior to now? Less hot water than usual?
Have you installed new gas appliance that might affect gas water heater?
Did you paint floor with urethane and gas heater suddenly stopped working?
Is the circuit breaker tripped on electric heater?
With electric heater, did you open top panel and push in reset button?
How old is the water heater? What brand do you have and what does label show on side of tank?
Is the water heater also leaking, or is it in good condition?
Add a comment.

2) If you don't want to add a comment for further free help, then take advantage of fixya phone service. For a price, fixya expert will ask you same questions and more questions via phone, and then possibly help you resolve issue.

3) If you don't want do-it-yourself help from fixya, call a plumber and give plumber as much information as possible, and plumber will fix heater or install another one. The more knowledgeable and helpful, the more the plumber will try to help you.

4) Double-check any information you receive from fixya and from professional plumber by posting question on professional plumber's forum like the Tank:

Jan 01, 2011 | General Electric Water Heaters

1 Answer

I just replaced my gas valve thermostat on my 6 gallon Atwood water heater model G6A-7 and the pilot lights fine, but as soon as I turn up the gas, the flame almost engulfs the tank. There is even a flame...

There are a couple of things to check....
I am assuming that the gas is LP or Propane....
make sure that the gas valve is for the right gas and not natural gas...
Also, it is possible that the regulator that cuts the pressure from the tanks is bad and that maybe why the original gas valve failed....
If you have the correct gas valve installed, get a gauge and check the pressure of the gas right before the gas should be somewhere between 8 and 12 inches water column...
If the regulator is not working properly, check that the vent hole in the regulaor is not plugged by a mud wasp nets or something like that...


Jul 16, 2010 | RTO Atwood DSI-RV Water Heater-6 Gallon

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