Dacor Dishwasher Error Code F-3

F-3 is an electrical and heater fault code that appears when the Water Parameter Sensor does not detect a rise in water temperature within the expected time during a wash or rinse cycle. The control board interprets this as a failure in the heater or its related circuitry. The dishwasher stops the cycle to prevent damage and alert the user to the problem.

Running the dishwasher with an active F-3 fault is not advisable. Without a functioning heater, the appliance cannot reach the water temperatures needed for proper cleaning and sanitization, meaning dishes may not be hygienically cleaned. Additionally, the underlying electrical fault could worsen if the appliance is operated repeatedly while the issue is unresolved.

Repair costs vary depending on which component has failed. A replacement heating element typically falls in the range of $50 to $150 for the part alone, while a new control board can range from $100 to $300 or more. Adding labor from a qualified appliance technician generally brings the total repair cost to somewhere between $150 and $500, depending on the specific fault and local service rates.

Some aspects of diagnosing F-3 are manageable for a knowledgeable DIYer, such as checking wiring connections for corrosion or damage and testing the heater element for continuity with a multimeter. However, replacing the heating element, control board, or WPS involves working with line voltage components and requires careful attention to safety. If you are not comfortable working with electrical components in appliances, a qualified technician is recommended.

A reset may temporarily clear the F-3 code, but if the underlying component has failed, the fault will return once the dishwasher attempts another wash or rinse cycle and the controller again detects no temperature rise. A reset is useful for confirming whether the error is intermittent, but it does not repair any faulty hardware causing the code.