Dacor Range Oven Cooktop Error Code PF

The PF error code on a Dacor Millennia Dishwasher indicates that a power failure or interruption has occurred during operation. Despite the appliance type listing of range, oven, and cooktop, this specific code is associated with the Millennia Dishwasher platform. When the control board detects that power was interrupted mid-cycle, it stores and displays the PF code to alert the user that the previous cycle did not complete normally. The code itself is informational in nature, signaling a disruption in the AC supply rather than a failed internal component.

Power failures can result from several sources: a momentary utility grid interruption, a tripped circuit breaker, a loose or degraded connection at the wall outlet or terminal block, or a voltage sag caused by high-demand appliances cycling on the same circuit. The dishwasher control board monitors incoming power continuity, and any interruption long enough to reset the controller will trigger this code when power is restored. In some cases, even a very brief outage of a few seconds is sufficient to set the PF flag.

Because PF is primarily a power-event notification rather than a component failure code, the appliance may resume normal operation after the code is acknowledged and cleared. However, recurring PF codes without any known utility outage should prompt a closer inspection of the home electrical circuit, the power cord, the wall outlet voltage, and the internal wiring harness connections at the control board. Persistent PF events can sometimes indicate an unstable power supply or a failing control board that is incorrectly interpreting voltage conditions.