Hayward Pool Heater Says Lo - “lo” code “lo” code (limit open) may relate to water flow. Verify the pump is running & adequate water is. Web if your hayward pool heater is displaying the lo code, it means that the limit string is open and the heater will shut down and enter. Web lo code fixes. Inspecting the water pressure switch wiring. Don’t worry, you’re about to.
Don’t worry, you’re about to. Inspecting the water pressure switch wiring. Verify the pump is running & adequate water is. Web lo code fixes. Web if your hayward pool heater is displaying the lo code, it means that the limit string is open and the heater will shut down and enter. “lo” code “lo” code (limit open) may relate to water flow.