Hotpoint Cooktop Error Code F19

F19 signals a communication failure between the visual board's UART2 interface and the external board on your Hotpoint cooktop. These two boards constantly exchange data to coordinate cooking functions, and when that communication breaks down, the cooktop displays F19. The fault can be caused by a power disruption, a loose wiring connection, or a failed circuit board.

It is not advisable to continue using the cooktop while F19 is active. A communication failure between control boards means the cooktop may not respond predictably to your inputs. Until the fault is diagnosed and resolved, the cooktop should remain off to avoid any unintended heating behavior.

Repair costs vary depending on the root cause. If only a wiring connector needs reseating or a harness replacement is needed, costs are generally in the range of $50 to $150 for parts and labor. If a control board requires replacement, total repair costs including parts and labor typically range from $150 to $400 or more, depending on parts availability and labor rates in your area.

A reset will clear F19 if the root cause was a temporary power fluctuation or a brief communication glitch. Power off the cooktop, wait a full 3 minutes, then restore power. If F19 returns after the reset, there is likely a physical issue with the wiring harness or one of the control boards that requires further diagnosis.

Start by performing a 3-minute power reset at the circuit breaker. If the error persists, inspect the wiring harness connecting the visual board and external board for loose connectors, bent pins, or visible damage. If wiring checks out, the visual board or external board may need to be tested and replaced. A qualified technician can confirm which component has failed.