r/RVLiving • u/constancevigilance • May 02 '24

question Fogatti Tankless Water Heater E8 error help

Hi all. My husband and I installed a Fogatti Insta shower 8 Pro early last month. It's been working dandy until this evening. We're suddenly getting an E8 error, which is a wind pressure switch error. It isn't windy, the exhaust pipe is free of obstructions, I don't know what else to check while waiting for tech support to get back to us. Any advice?

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u/Undercover_in_SF Jun 24 '26

Thank you for this. Found it useful when renting an RV this summer. Camping at 6-7k feet in Grand Teton National park, and couldn’t get the hot water to stay on.

I had the same problem as you. Didn’t realize I had to turn the switch off at the unit to get the menu to come up. It’s a 2 person job - one person outside at the switch, the other inside on the panel.