Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
Sunline RV Forum
Sunline User Photos

Go Back   Sunline Coach Owner's Club > Technical Forums > Repairs and Maintenance
Click Here to Login

Join Sunline Club Forums Today

Thread Tools Search this Thread Display Modes
Old 07-20-2017, 08:46 AM   #1
Junior Member
Join Date: Jul 2017
Location: North Carolina
Posts: 2
SUN #9601
Robingreer is an unknown quantity at this point
Atwood Water Heater

We have the Atwood Wayer Heater in our camper.
GC6AA-9E. But, we can only get it to work on gas.
I will attach a picture of the switch inside. I'm wondering if there's another switch on the unit we need to turn on to work on electric.

Thank you in advance.
Attached Images
File Type: jpg 40783208-2777-41B8-9485-41148AAB57B0.jpg (44.4 KB, 7 views)

Robingreer is offline   Reply With Quote
Old 07-20-2017, 09:21 AM   #2
Sunline Fan's Avatar
Join Date: Dec 2006
Location: Michigan
Posts: 6,097
SUN #123
Sunline Fan is an unknown quantity at this point
Hi Robin,

It looks like you have a 2001 Sunline. Older water heaters had a toggle switch on the back of the actual water heater to work the electric element, but yours is new enough that it shouldn't have that.

You have a blue knob on the outside of the water heater to turn on gas operation, correct?

You should have a little rocker switch behind the kitchen sink, to operate the electric element. Do you have this? I believe the light should come on when the element is heating, and go off when it reaches temp. I've attached a picture with this circled in red.

The larger rocker switch in your picture may be something usually found with Canadian spec trailers built to CSA standards, and it seems odd for one of those to have made it to NC. This switch was usually a toggle type household switch, not a rocker, but it may have been changed out. The switch only allows the microwave OR the water heater electric element to be used at one time. It was done to prevent overloading of park electrical systems or something. The switch doesn't act as an on-off switch, but rather an either-or. One side should power the electric element, the other the microwave.

So, when the trailer is plugged into shore power, try rocking that switch and see if the clock on the microwave goes out in a particular direction. Note that direction and then you should have power to your water heater element in the other. Just make sure you have water in your water heater before you try the water heater element, so you don't burn it up.
Attached Images
File Type: jpg 6.JPG (168.8 KB, 14 views)

2007 T-286SR Cherry/Granola, #6236, original owner, current mileage: 9467.8 (as of 5/26/19)
1997 T-2653 Blue Denim, #5471
1979 12 1/2' MC, Beige & Avocado, #4639
Past Sunlines: '97 T-2653 #5089, '94 T-2251, '86 T-1550, '94 T-2363, '98 T-270SR
Sunline Fan is offline   Reply With Quote
Old 07-20-2017, 09:49 AM   #3
Junior Member
Join Date: Jul 2017
Location: North Carolina
Posts: 2
SUN #9601
Robingreer is an unknown quantity at this point
Thank you so much for the information. I wil have my husband look at it when he gets home!
Robingreer is offline   Reply With Quote
Old 07-20-2017, 10:19 AM   #4
JohnB's Avatar
Join Date: Nov 2006
Location: Ohio
Posts: 11,556
SUN #89
JohnB is on a distinguished road
Hi Robingreer,

Welcome to Sunline Owners Forum!

On your hot water heater, can you tell us a little about your camper?

Has the heater ever worked for you on electric? We do not know if you just bought the camper and trying to get the heater to work for the first time, or it was working and now stopped.

Odds are high there is a circuit breaker in the power converter panel that has a 15 amp breaker in it. The label on the diagram should call it out for the hot water heater. See if it is on or if it has tripped. This would prevent the electric element from working.

The model number you gave decodes to having direct spark ignition on the gas and it has the electric element. And it a rev 9 heater which means buried on the back of the heater is a small rocker switch that looks like this.

That little rocker switch needs to be on to allow the heater to work on electric. This was a pain to get to that switch as the heater is buried under couches, beds etc. What some folks did to get around this was to install a normal house looking switch remote somewhere to get to the switch easier.

It appears a prior owner did this in your case. That house type of big white rocker switch was not original from Sunline. That switch will also need to be on.

There is also the possibility the electric element has burnt out if all the switches and breakers are on. If someone by accident turned on the electric element with no water in the heater, the element will burn out in a few minutes or less as there is no water to cool the element. If this is the case, they are replaceable.

If this is the issue, Atwood part 92249 should be the screw in unit for your model number. There are many online places that sell them. Here is one

They also sell the wrench to put on the large nut to get it out. The element is in the back of the unit behind that little black rocker switch.

Hope this helps and let us know how you make out or if you need more help on this

Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC

Google Custom Search For Sunline Owners Club
JohnB is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Atwood Gas Furnace and Atwood Water Heater GalacticSton Accessories, Parts, Etc. For Sale 2 01-25-2019 09:26 AM
Atwood Hot Water Heater questions... Lode Repairs and Maintenance 11 10-20-2014 03:39 PM
atwood water heater help rich2500 Repairs and Maintenance 5 05-10-2010 09:18 PM
Atwood water heater water hose connections problems Sunline1 Repairs and Maintenance 17 08-31-2008 01:01 PM

» Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by Sunline RV or any of its affiliates. This is an independent, unofficial site.

All times are GMT -6. The time now is 12:53 AM.