Originally Posted by Rjpetr65
I changed out my anode rod today Iím my suburban sw6DE water heater thinking that would help with no hot water.
I noticed that if I jiggled the wire to the ignitor it would start the flame. I then took the ignitor out cleaned the contacts and the ground connection and put it back in. Now I get nothing.
However, after reassembly I did got a little ďzapĒlike a spark plug in a car when I was testing the connection without the boot on it. But that was the last time I got anything out of it. All fuses and breakers are fine. I did have the gas OFF when I was checking the ignitor.
How does this thing work for ignition? Does it use 12v to create the spark or the 110v circuitry? I know a car has a coil pack and ECU to create the spark, is it the same thing for a water heater? Iím sure this thing doesnít have points and a distributor!
I buzzed out the ignitor and the center electrode is fine and the ground electrode goes to ground correctly so no broken connections there.
The gap seems to be ok in the ignitor as far as I can tell. When I touch have the ignitor out, I touch the ground lead to ground and donít see a spark jump across the contacts. I think that high voltage is not present on the ignitor.
I presume that I am looking for 20,000-40,000 or so volts on the anode to jump the gap? How does that voltage get created in the water heater electronics?
Iím not sure what to do now aside from taking it in to have it looked at?
I'm not gonna tell you how to fix it. I gonna give you some things to think about.
What made you think the anode rod had anything to do with making hot water? Was there anything involved with it that could produce heat?
You made it work by juggling the wire. Think about that. Loose connection? Broken wire?
Where would you get 120 volts if you were boondocking with no generator?
There is a circuit board involved using 12 volts to produce the spark.
Does it work on 120 volt?
Gas switch inside with the red light on?
Go back and think about the loose connection again.
Go to the library section at the top of the page and read. You need to do some reading.