Question about RTO Atwood Water Heater - 6 Gal LP

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Atwood water heater won't ignite on gas or electric

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Posted on Jan 02, 2017

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SOURCE: Have an G6A-8E Atwood water heater. It Starts fine...

If it has the little thermal cut-off in power wire to thermostat (has a little plastic jacket over it) try removing it, and connect female spade from power wire, directly to male spade on thermostat, and see what happens. Also, make sure electrode is positioned in flame good for flame sensing properly.

Posted on May 26, 2010

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SOURCE: I have a G6A-7E electronic ignite water heater.

Make sure propane is on and getting to your stove burners ok, first, then try switching it back on. If it fails to ignite, shut switch off and try a couple of times, if still no ignition, get back to me.

Posted on May 25, 2010

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SOURCE: I have an Atwood water heater model G6A-8E. When

If this model has a thremo couple you might want to check it. It sounds like that is the problem.

Posted on Jun 07, 2010

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Any RV sales and service dealer can get parts for you, if they don't already have them in stock. Is the pilot staying on at all? If yes, what happens when you turn from pilot, to On? One easy thing to try is undo thermocouple (probe that sits above pilot flame) from gas valve (3/8" wrench) and clean the end of the thermocouple with fine steel wool, as well as spray some WD-40 into the hole it came out of, and give it a blast of compressed air after to clean it out as well. (protect your eyes) Then re-install the fitting and snug it up good, and try lighting again. You may get lucky that it's just corroded or dirty, and this may cure that.

Posted on Jun 08, 2010

Testimonial: "very good info except my description of the problem was not detail enough."

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SOURCE: the electronic ignition on a gas water heater will

You won't see any red glow until the burner ignites and burns for a while. Its only an ignitor and flame sensor, not a glow plug style.The ignitor has to provide spark for gas to ignite, then it also senses the flame and keeps gas flow coming. What exactly is happening when you turn it to on?

Posted on Jul 20, 2010

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1 Answer

Converting Atwood RV Gas hotwater heater with Electric ignition with a Gas/Electric

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

1 Answer

Atwood G16-EXT won't stay lit

check burners and orfices for cobwebs if ok check pressure

Apr 20, 2013 | Atwood G16-EXT Gas Only XT 10 Gallon DSI...

1 Answer

We have no hot water, and the DSI light is on. Doesn't work in either electric or gas mode.

I'll need you model number to verify it has electric element, as well as DSI ignition. Does it try to ignite,on propane, as in sparking at electrode? On DSI, the light on usually means it tried to light but failed due to a problem, such as propane not on, or present etc.
Do you have a 12 volt test light or Multimeter?

Aug 15, 2011 | RTO Atwood DSI-RV Water Heater-6 Gallon

1 Answer

We have a 2006 31 ft fleetwood prowler trailer. We can't find in manual switch for water heater. We see the switch with electric and gas on wall but which symbol is "on" &...

I do not have specific answer.

Open following links to identify product, download service guide and download manual for the different model numbers, plus parts list and other resources:

Page 3-4 of following manual shows switch settings for LP gas.
On-line manual can be word-searched for 'switch.'
This water heater has remote switch, which is the switch you are talking about. It also has limit switch and ECO (energy cut-off switch)

Jul 26, 2011 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

Pilot will light after 30 seconds when you try to move knob to on position the pilot goes out and heater won't ignite.

You need to replace the thermocouple.
When you light the pilot it is supose to heat the thermocouple.
the thermocouple produces a small electric current which allows the gas valve to open and keep the pilot going. and allowing the main burner to come on.

Jun 21, 2011 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

Is it possible to replace a G6A-3 with a gas and electric unit?

Yes. As long as it's an atwood 6 gal., the opening should be same dimensions. Keep in mind that you will need to supply hydro to water heater in order to operate it on electric, as well as switch etc. For electronic ignition of gas, you will need to supply a 12 VDC source, and switch as well.

May 31, 2011 | RTO Atwood Water Heater - 6 Gal LP

1 Answer


By model number it tells me that you have Electric element, as well as gas with electronic ignition for the gas, is that correct?
Any 6 gallon Atwood will work, and if you want to have all the same features available, you simply order another 6 gal, with same features. If you decide to forget the electric element, and just go with gas and electronic ignition, they should be able to order you just that tank. You can even order a tank with manual ignition, and forget all the other options if you wanted to. Personally, if it's got hydro and electronic ignition for gas, I'd replace it with same, unless I have no access to hydro, and will never use that option. If all those options are working on yours, you can just replace the tank, rather than buy all those items new on a complete tank. Any 6 gal. Atwood will go in the hole, it just depends on what you decide you want. I don't understand what the confusion is about, but maybe I'm missing something here.

Oct 02, 2010 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

When gas switch on an atwood water heater is turned on, the electric switch blinked and unit doesn't light

It usually only lights when starting up on propane, or if it didn't ignite for one reason or another. Usually light off indicates working o.k. Are you sure the electric element hasn't been on and water is heated already? Carefully open pressure relief valve slightly and see if water is hot or cold.

Jul 11, 2010 | RTO Atwood DSI-RV Water Heater-6 Gallon

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