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Old 03-09-2023, 09:52 PM   #1
griz_king
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2022 Fusion 419

Brand New went to fire up tankkless water no go. Error code E8.
Manual Says it's a air sensor. Any ideas
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Old 03-10-2023, 10:16 AM   #2
chuckster57
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There are videos on YouTube on troubleshooting that code. Your owners manual should have troubleshooting guide.
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Old 03-10-2023, 12:01 PM   #3
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With all the supply chain problems that every RV manufacturer has had during the past 24 months, there is no assurance that your water heater is the same brand and same model as the next trailer that went down the line.

So, what brand/model/date of manufacture is your water heater ?????
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Old 03-10-2023, 01:24 PM   #4
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Quote:
Originally Posted by griz_king View Post
Brand New went to fire up tankkless water no go. Error code E8.
Manual Says it's a air sensor. Any ideas
the exhaust blower should come on ..if it doesn’t then the pressure switch won’t close..i’d check for a obstruction in the exhaust or intake on the outside of the camper..mud daubers perhaps?..air sensor is probably pressure switch code
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Old 03-20-2023, 07:26 PM   #5
army1rob
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This happened to mine after sitting for awhile and I think it was just air in the propane line. I reset it a couple of times by flipping the outside switch off and on and it ended up firing up. I ran my tanks empty last year and just filled them, will probably have the same problem.
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