On Watts A2C-SC and A2C-SC-WB systems, water availability depends on the washer's sensed current, leak sensor and control state. A closed supply is not automatically a failed washer inlet valve. Record the complete indicator pattern and model, check for a real leak safely, and use the matching manufacturer chart. Preserve the sensor and confirm appliance compatibility before resetting.
Identify the valve before replacing washer parts
This answer covers Watts A2C-SC and A2C-SC-WB IntelliFlow systems. Find the valve model, washer model and matching instructions. A similarly named older unit or another automatic shutoff may use different indicators and procedures.
The Watts installation manual explains that these valves sense the washer's electrical current. They open the water during a wash cycle and close when the completed cycle draws less current. Water closed while the washer is idle can therefore be intended operation. A supply that remains closed during a required fill needs a separate investigation.
Record the whole indicator pattern
Note each indicator's color, whether it is steady or blinking, and the washer's operating state. Photograph the panel from a dry, safe position. The manual describes yellow as the water-supply state and distinguishes a detected leak, a timing condition, absent power and an unplugged sensor.
Do not diagnose from “red blinking” alone. The actual chart distinguishes patterns and also lists sensor disconnection. A remembered code from a different controller can lead to the wrong reset or unnecessary valve replacement.
Check whether both supplies stopped or only one. Watts lists a one-hose restriction separately, with strainer service requiring power removal and both water supplies shut off. Leave internal servicing to an appropriate qualified provider; do not loosen pressurized components to test the theory.
Investigate a leak before resetting protection
For its leak-detected state, Watts directs users to correct the problem before drying the sensor and performing the documented reset. A floor that looks dry now does not establish what happened earlier or behind the machine.
Stop washing if water is present. Follow the burst-hose shutoff and electrical precautions. Do not touch plugs or electrical equipment from a wet floor, bypass the sensor, or repeatedly reset the valve to finish a load. Washer leak locations help separate a supply problem from appliance or standpipe overflow.
Confirm the washer can use this control arrangement
Watts also describes washers whose idle circuitry keeps the water valve energized. A continuously lit yellow indicator after a cycle is not proof that the intended protection arrangement matches that appliance.
The IntelliFlow specification and manual identify the separate A2-IntelliTimer accessory for documented compatibility situations, including 240-volt appliances. The valve is not a direct 240-volt washer connection. Have the installer or manufacturer confirm the complete approved arrangement; do not improvise wiring or plug another appliance into the valve to force water on.
Keep the washer's required inlet connections separate from this external control check. Report the model, indicator pattern, when filling stopped and any wet-sensor history. Those observations support a specific investigation without treating a powered indicator as proof of complete leak protection.