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scottsnider

Lakewood

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Posted: 06/28/20 05:17pm Link  |  Quote  |  Print  |  Notify Moderator

I have a new to me 2004 HiLo with a Atwood water heater. Now the WH works on electric just fine but when I try to use gas I get a spark but no flame. So I checked with a gas meeter and there is no gas going to the WH. Can anyone help me to get the gas on or should I get a repairman to do it? [image]

rk911

DuPage County

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Posted: 06/28/20 05:37pm Link  |  Quote  |  Print  |  Notify Moderator

ummm ...is the gas supply on? does the stove light? if yes/yes light the stove and let it burn for about 60-sec and then try the WH.


Rich
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corvettekent

Marysville, WA

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Posted: 06/28/20 05:44pm Link  |  Quote  |  Print  |  Notify Moderator

If want rk911 says does not work replace the gas valve on the water heater.


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enblethen

Moses Lake, WA

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Posted: 06/28/20 06:12pm Link  |  Quote  |  Print  |  Notify Moderator

Atwood gas valves have two 12 volt coils. Disconnect the wire from circuit board, separate the wires at the coils. Use an Ohm meter to check resistance on each coil. the readings should be the same. If not the same replace gas valve.
Check the coil ground wire connection. Located behind gas valve connected via the valve mounting screw.
Use volt meter to check for 12 volts DC coming out of circuit board while the ignitor is sparking. No 12 volts DC means new circuit board. Recommend Dinosaur Electronics version.


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Bob/Olallawa

Kitsap Co, WA/Bullhead City AZ

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Posted: 06/28/20 06:38pm Link  |  Quote  |  Print  |  Notify Moderator

^^^ What Bud said ^^^


Welcome to my home, that door you just broke down was there for your protection not mine.

scottsnider

Lakewood

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Posted: 06/28/20 07:21pm Link  |  Quote  |  Print  |  Notify Moderator

Thank you Bud, I will be honest with you I have never been able to use a Ohm meter right, one time it got really hot and other times it reads nothing.

enblethen

Moses Lake, WA

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Posted: 06/28/20 07:34pm Link  |  Quote  |  Print  |  Notify Moderator

Turn on meter. If it is a digital, it should display OL in resistance mode (Ohms)
When leads are touched together it should read close to Zero. When testing the coils, the meter should read around 25-40 Ohms on each coil. Most digital meters have automatic range.
Voltage test would be done on around a 20 volt DC scale. One lead (black) goes to ground and the red lead would go to circuit board output.
Didn't ask before, Does the ignitor click? This is spark at the water heater end of burner tube.
Which Lakewood are you located?

kellem

Shenandoah valley,VA

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Posted: 06/28/20 07:38pm Link  |  Quote  |  Print  |  Notify Moderator

The few times it happened to me, it was a paper wasp in the orrifice.
I used a coat hanger and dug it out.

old guy

Oregon (pronounced Or e gun)

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Posted: 06/28/20 08:43pm Link  |  Quote  |  Print  |  Notify Moderator

you might try cleaning the electrical terminals before replacing parts. a lot of the time they make poor contact and the heater will not work

wa8yxm

Wherever I happen to park

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Posted: 06/29/20 05:26am Link  |  Quote  |  Print  |  Notify Moderator

enblethen wrote:

Atwood gas valves have two 12 volt coils.


They Do???? (I have and atwood)

And on teh Dinosaur board recommendation.. SECOND.

Suspects in order
Out of gas (Stove won't light)
Tank(s) shut off (Stove wont't light)
Bad regulator (Stove may light or not but all burners at once likely not).
Pinched gas line (Visual inspect)
Bad valve
Bad control valve
Clogged orifice (A spider likes to nest in 'em clean and try again)


Home is where I park it.
Kenwood TS-2000 housed in a 2005 Damon Intruder 377


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