Kenmore Washer Error Code F30

F30 means the washer's internal water heater failed to raise the water temperature by at least 86°F (30°C) within the first 40 minutes of the cycle. The control board monitors this temperature increase through the TH2 and HE2 connections. When the required rise is not detected, the washer stops and displays F30 to indicate a heater-related failure. The issue may involve the heater element, the temperature sensor, or the wiring connections.

You should not continue using the washer while F30 is active. The error indicates the heating circuit is not functioning correctly, and running cycles in this condition can result in poorly washed loads or potential electrical issues. Disconnect power and perform diagnostics before attempting to run another cycle.

Resetting the washer by unplugging it for a few minutes may temporarily clear the F30 code, but the error will return if the underlying problem has not been resolved. A reset is useful as a first step to rule out a one-time control glitch, but a recurring F30 code means the heater circuit requires proper diagnosis and repair.

Some causes of F30 are DIY-friendly, particularly checking and reseating the wiring connectors at the TH2 and HE2 cavities after unplugging the machine. If the issue is a failed heater element or thermistor, replacing those parts requires moderate mechanical skill and comfort working with appliance wiring. A defective CCU is a more complex repair and may warrant professional service.

Repair costs vary depending on the failed component. A replacement heater element or thermistor typically costs between $20 and $80 in parts, with professional labor adding $100 to $200 or more. If the CCU needs replacement, part costs can range from $150 to $350 or higher. Fixing a loose wiring connection yourself costs nothing beyond your time.