Talk of The Villages Florida - View Single Post - Tankless Water Heaters
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Old 09-13-2023, 09:10 PM
Triker Triker is offline
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Default Sounds familiar
Turn the hot water on in the shower then go and watch the unit. If it shuts down with the water flowing it should flash a code. I’ve had one up north, for 10+ years and about a year ago mine did the very same thing. After getting hot water and stepping into the shower 2-4 minutes later the water turned cold. After seeing the code and checking the manual it said the problem was soot on the AFR (air-fuel-ratio) device. I removed it and rubbed it lightly with emery paper and reinstalled it. No more problems! Mine was natural gas fired and was always cleaned on a regular annual basis.