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Hi my name is ***** ***** I have been in the plumbing field for 20 years. I will be glad to help you today. Have you checked to see if there is water inside the cabinet again? Is the condensation drain clear? Is the sprinkler still spraying on it?
inspect inside of cabinet for signs of water pooling on bottom pan of water heater. Wipe or blow out any water found in cabinet. Dry off leak sensor and restart unit. The leak sensor is in the bottom pan but you will have to remove the cover to inspect it. Hopefully the issue is that the water from the sprinkler got on the sensor. It could also be a faulty sensor. If no water is found and there surely are not any leaks then unplug the sensor. Be sure to replace the sensor as it is an important component. If there is water and the water keeps returning then that would be a sign of a much more serious issue like an internal leak or cracked heat exchanger.
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