Can't light Rheem 22V40FN

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mc510

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House is currently unoccupied so I turned off the water heater according to instructions, then also turned off the valve on the gas supply line. Now, a couple of months later, I turned the gas supply back on and tried to light the pilot. I don't see a spark when I depress the lighter, don't see a pilot flame, and don't smell gas.

Is there a trick to lighting a heater that's been off for a while? Is it likely that the piezo sparker is broken?
 

Reach4

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Does the gas work for something else in the house?

Is this a WH with a red button? Try holding that button in longer -- maybe a minute.
 

mc510

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Yes, there's a gas stove; I tested that and it worked fine.

The button is not red -- from the lousy pictures that I took when I was there, it looks green ... but perhaps is gray or black. But definitely not red.

I am following the directions to light but I never see a spark or a pilot flame.
 
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Terry

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Normally you would set the temperature to pilot, depress the button, and click the striker. There is a window where you can see the spark from the igniter, and the flame when it lights. If you let up for even a moment, it needs to reset for a while. I find myself holding the button down for up to a minute at times.
 

mc510

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Yeah, that's exactly how it works on this Rheem ... Set temperature to "pilot", turn gas control knob to "pilot" then press and hold down, press the sparker button, hear a nice loud click, keep holding button down ... but I don't see any spark or any kind of glow from a flame. Repeat, repeat, repeat, repeat, conclude that more of the same isn't going to produce a different result.

I saw a comment somewhere on the internets that these Rheem units have a very faint pilot light, so I suppose that maaaaaaaybe I'm just not seeing the pilot when it's actually lit? But I don't don't really think that's the case; unit is in a pretty dim area and my eyes aren't that bad.
 

Terry

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Once the pilot is lit, you can rotate the dial to heat, and the flames will come on. It kind of makes a roar when the entire burner lights up.
 

MACPLUMB

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May be time to call a professional ?
Also very important run all hot water valves in house to make sure you flush out all the water heater to get rid of germs and bacteria
That might have built up as whale hydrogen
Gas !
 

Dj2

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Call your gas supplier, most gas companies light up pilots for free.

If you have a problem, the gas company rep will note it on his report paper.
 

mc510

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Call your gas supplier, most gas companies light up pilots for free. If you have a problem, the gas company rep will note it on his report paper.
Thanks dj2, great idea; I had forgotten about that!
 

Master Plumber Mark

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sometimes, its wise to unplug the wire where the sparkey thing and the wire to the bottom
of the heater plug in together... and plug them back together again... on occasion the spark grounds
across the line at the plug into the side of the heater and does not make a spark happen down at the
piolet light. check that connection first.
.
 

mc510

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sometimes, its wise to unplug the wire where the sparkey thing and the wire to the bottom
of the heater plug in together... and plug them back together again... on occasion the spark grounds
across the line at the plug into the side of the heater and does not make a spark happen down at the
piolet light. check that connection first.
.
Huh, never would have thought of that .. thanks Mark, I will give that a look when I get back to the house.
 
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