What this code means
Cool water - incoming water under 84°F (29°C), or control programmed to disable heater if it detects a water heating problem.
First step from the service manual
1. Be sure dishwasher is connected to the hot water supply. 2. Confirm temperature at sink (recommend 120°F/49°C). Instruct customer to run water at sink before running dishwasher. 3. Unplug dishwasher or disconnect power and check all connections and measure resistance in Temperature Sensing Circuit. Replace OWI if resistance is high.
Next steps: diagnose the root cause
Power cycle the unit and see if the code returns. If it does, the fault is persistent and requires diagnosis.
Get step-by-step guidance, test values, and wiring diagrams from the OEM service manual.
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What’s available for Amana dishwasher models
Access Amana dishwasher service manuals, wiring schematics, exploded parts views, and error code references on MyPros+.