• Verify your home circuit breaker for the dishwasher has not tripped; reset it if necessary• Unplug the dishwasher from the electrical outlet or turn off the dedicated breaker for 60 seconds, then restore power to perform a full reset• Check that the hot water supply valve under your sink is fully open and that hot water is reaching other fixtures in your home• Inspect the inlet hose for kinks, crimps, or blockages and straighten if needed• Run hot water at your kitchen sink for 30 seconds before starting the dishwasher to ensure hot water is available in the line• Remove the lower spray arm and inspect the inlet screen for mineral deposits or debris; rinse with clean water• Clean the dishwasher filter at the bottom of the tub by removing and rinsing thoroughly to ensure proper water flow• Confirm you are using USA-approved automatic dishwasher detergent and the correct amount for your water hardness level• Check that the dishwasher door is fully closed and latching completely• Inspect the drain hose connection at the sink or garbage disposal for clogs or kinks• Run a short rinse cycle without dishes to verify water temperature improves• If the error persists after these checks, the heating element or temperature sensor likely requires professional replacement
