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Solution for Fogatti Water Heater With E8 Error Code But Exhaust Isn't Clogged  

Updated 05/02/2025 | Published 12/07/2023

Question:

On a brand new fagotti insta shower 8 pro, if it keeps throwing the E8 code and has a steady 12.65 vdc and the exhaust isn’t clogged. What could be the problem?

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Expert Reply:

I spoke with Fogatti about your Fogatti RV Tankless Water Heater # FG29FR giving an E8 code even though your exhaust isn't clogged and they recommend that you try to adjust the HC parameter values.

expert reply by:
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Bryce D
John H. profile picture

John H.

3/28/2024

Mr bryce i have the same problem what is the hc setting suppose to be at?

Bryce D. profile picture

Bryce D.

3/29/2024

@JohnH John, they actually didn't give me that info so Id assume they meant just keep trying different values to see if it fixes it. If not, I'd just give them a ring and see if they have a recommendation.
Lee profile picture

Lee

3/30/2024

@BryceD Can I bypass the wind pressure switch?
Bryce D. profile picture

Bryce D.

4/1/2024

@Lee No, you cannot bypass the pressure switch and the unit is setup to not allow that anyway.
See All (6) Replies to John H. ∨

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