F1 error on Whynter built-in ice maker, unit will not run

Safety: Disconnect power before accessing internal components.

Steps to fix F1:

• Locate freezer sensor: On built-in Whynter ice makers, the freezer sensor is typically mounted on the evaporator wall or behind an interior panel.
• Inspect sensor and wiring: Remove the interior panel as needed. Check that the sensor is firmly attached and that its wires are not pinched or cut.
• Measure resistance: With the unit unplugged, disconnect the sensor and measure its resistance at freezer temperature. Compare to the service chart if available; if not, compare to a known-good ambient sensor. A reading of 0 Ω or OL indicates failure.
• Check for shorts: Ensure the sensor leads are not touching metal surfaces that could cause a short.
• Replace sensor: Install a new freezer temperature sensor if readings are out of range or intermittent.
• Control board replacement: If a new sensor does not clear F1, the control board may not be reading the sensor correctly and should be replaced.