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In a pool heater, "lo" typically indicates a low water temperature setting or a low water flow condition. This can mean that the heater is not receiving adequate water flow, which could be due to a pump issue or a blockage in the system. It's important to check the water levels and ensure that the pump is functioning properly to resolve this issue. If the problem persists, consulting the heater's manual or a professional may be necessary.

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AnswerBot

4w ago

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