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Old 08-27-2013, 05:47 PM   #1
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Water Heater-Atwood G6A 3 6.2 gal

Purchased 87 Sunline Saturn recently and doing some renovations.

Can't get the hot water heater pilot to light. It's an ATWOOD G6A 3.
Have removed the air shutter and cleaned off the gas valve with fine sandpaper as recommended but I don't think any gas is coming into the gas valve. I don't smell any and the pilot doesn't light.

Any experiences with this type of water heater and other things I can check?
Yes, I have gas in the tank & it's on.

I'm familiar with the lighting procedures of heaters that have a thermal coupling so I know to hold the control in the 'pilot' position while trying to light it.

Thanks for serious suggestions.
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Old 08-27-2013, 05:58 PM   #2
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Hi,

Could be the regulator on the propane tanks. I just replaced mine as I could only get the water heater to fire for only a few seconds at a time. Didn't have a manometer to measure LP pressure so I just spent the money for the new regulator. Fixed my problem instantly. All of my other gas appliances worked fine, but the hot water heater. The propane has to travel a long way in our TT to get back to the unit. Having the correct LP pressure is important as the distance gets farther away from the tanks. Hope this helps.

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Old 08-27-2013, 08:11 PM   #3
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The first thing they taught us in RV tech school was to light all burners on the cook top before trying to fire up the fridge, furnace and water heater. That can sometimes take up to a minute depending on its location. Then fire up everything else. It could still take longer than expected to light the pilot. But give it a try. If you are into DIY invest in a manometer and multimeter. First will help you with LP problems and the second with electric problems.
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Old 08-28-2013, 08:26 AM   #4
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Thanks for the suggestions!

It has a regulator and I'll try to post image here. (can't get image to post) It's a Marshall Brass Co. Model 260 Two Stage.

I also took off the pilot nozzle and made sure it wasn't clogged.
I lit the stove top as suggested and tried to light the pilot...waited...waited...waited...
Even if the pressure was low I should still be able to smell gas coming out of the pilot nozzle wouldn't I?

I have read there is an adjustment you can make to the regulator....anyone familiar with a Marshall Brass Co., Model 260 Two Stage?
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Old 08-28-2013, 08:40 AM   #5
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http://www.sunlineclub.com/forums/me...albums410.html

I was able to get pics to load to My Album.
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Old 08-28-2013, 12:30 PM   #6
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Well, to start with, Marshall Brass and it's various incarnations is now out of business. The final bankruptcy ended in December of 2012 and they closed for good.

That regulator can be adjusted BUT I would not do it unless you have a manommeter which is really simple to build. The pressure needs to be equal to 11 inches of water column. I just went through this with my fridge but haven't posted pictures yet. Cost me under $12 at Home Depot for the parts.

If you unscrew the plastic piece just above the word "vent" in this picture you will see either a screwdriver slot or a plastic disk with a hex slot (allen wrench) Turning it to the right (clockwise) will increase the pressure.



I would think that if the stove burners burners work but you are not even getting a wiff of gas from the water heater valve then the valve itself is bad. The only way to be sure is to disconnect the gas line to the input side of the valve and turn on the tank. THAT COULD BE DANGEROUS, please have a second person at the tank if you try this.
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Old 08-28-2013, 12:38 PM   #7
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UPDATE: IT WORKS! I took the regulator off to determine if it was blocked, took the gas nozzle off and it was clear, took the thermal coupling assembly out and 'looked' at it....cleaned it off a bit but really didn't know what I was looking for and put it back in. My next effort was going to be the control knob, but I couldn't get the screw loose that holds it on and didn't want to force it and strip the threading so I left it alone. Put everything back together. Burned a few fingers holding the match up long enough to try to light it...didn't have a fireplace lighter so I taped a birthday candle on a stick and DING DING DING....we have fire! The heater fired up when I put the control to heat....good blue flame with a bit of yellow/orange.
I'll know in a day or so it it actually heats the water since I now have the water off while working on the bathroom shower.

Whew! That was really a task and I'll have to admit I did lose my cool a few times but always came back to my friend 'Google" to look up things to try, and talked with a real nice man at a local plumbing supply store ( local- NOT big box) that gave me a list of 'elimination' things to do.
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Old 08-28-2013, 04:35 PM   #8
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I have had a couple that did the same thing I just replaced the whole deal thermocouple and pilot jet as one assembly they are any where for $15 to $30 depending on where you get them.
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