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paige02Aug 18, 2025
What to do if my RefPlus Air Conditioner system stopped and displays WATER LOW PRESSURE alarm?
- PPeter BaxterAug 18, 2025
If the RefPlus Air Conditioner system stops and displays a WATER LOW PRESSURE alarm, ensure that the pump inlet pressure is at least 40 psi if you're using city water. Check for any restrictions and ensure the inlet pipe dimension is correct. The low-pressure switch might be damaged, so inspect it. If the pressure is correct, you should detect continuity. Reset the alarm. If using a water tank, ensure proper flow, check for restrictions, and verify the inlet pipe dimension. The low-level switch may be damaged, so check it. When the pressure is correct, continuity should be detected. Reset the alarm. To check continuity, first remove wires from ID2 and Ground on port J12 and read continuity between ID2 and Ground.
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