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Old 10-13-2022, 05:22 AM   #1
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10 Gal Atwood water heater

Hello All, I have a Atwood 10 gal heater that's now a headache. Turn it on and in a second or two the "pilot out" light comes on. Tried propane and electric with same results. I replaced the ECO/STAT and tried again, still didn't work. Tried bypassing the inline fuse link, still didn't work. Looked at the circuit board and saw a 2 amp mini fuse. Pulled it out and found it was blown. Replaced fuse and wha-la, heater fired up!! Woke up this morning and the "pilot out" light was on again. I suspect the fuse again but haven't yet verified. What could cause the fuse to blow?

Thanks, Dan
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Old 10-13-2022, 07:43 AM   #2
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Location: Eastern outskirts of Dallas, TX
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Bad ignitor control. There’s not much to these units that can’t be obviously seen as a short circuit - and with the ignitor control being potted, hard to say what failed internally so as to cause a high current to be drawn to blow the fuse.

If all the wiring looks good and no chafing to ground anywhere - get a new ignitor control. From Dinosaur Electronics.
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Old 10-13-2022, 10:40 AM   #3
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Check out this post from January of this year. Old Biscuit is the one in the know when it comes to water heaters!
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atwood, heat, heater, water, water heater

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