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Error code reference

GE Dryer Error Code Sn

Motor switches ON and is running during Field Service Mode test.

GE codesGE dryer codes

Motor switches ON and is running during Field Service Mode test.

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What Sn means on a GE dryer

The Sn code on a GE dryer appears during Field Service Mode and indicates that the drive motor has successfully switched on and is actively running. This is a status indicator rather than a fault code. Field Service Mode is a diagnostic routine built into GE dryers that allows technicians to manually activate and test individual components, including the drive motor, heating element, and sensors. When the motor test is triggered within this mode, the control board energizes the motor circuit and displays Sn to confirm the motor has responded and is spinning.

The drive motor in a GE dryer is responsible for rotating the drum and, in many models, also drives the blower fan that moves air through the drum and exhaust system. When Sn appears during the motor test, it confirms that the motor windings are receiving voltage, the motor start winding has engaged, and the centrifugal switch has transferred the circuit to the run winding. This is the expected, normal response during that specific test step.

If Sn does not appear when the motor test is initiated in Field Service Mode, that absence would indicate a problem with the motor circuit, such as a failed motor, a faulty thermal overload, a wiring issue, or a control board output failure. Seeing Sn display correctly means the motor and its associated circuitry are functioning as intended during the diagnostic sequence. Technicians use this confirmation to isolate motor-related complaints and clear the motor as a suspect before moving on to other components.

Source: manufacturer service documentation.

Common causes of Sn

  1. 01

    Normal Field Service Mode motor test result

    Wiring / connection

    Sn displays as a normal status confirmation when the motor activates during the Field Service Mode diagnostic sequence. No fault is present if the dryer is intentionally in this test mode.

  2. 02

    Unintentional entry into Field Service Mode

    Wiring / connection

    If the control panel buttons were pressed in a specific sequence accidentally, the dryer may have entered Field Service Mode without the user intending to run diagnostics. Exiting the mode will clear the display.

  3. 03

    Control board stuck in diagnostic routine

    Wiring / connection

    In rare cases, the control board may not exit Field Service Mode properly, causing diagnostic status codes like Sn to persist on the display. A power cycle by unplugging the dryer for 60 seconds typically resets the board.

  4. 04

    Control board malfunction displaying incorrect mode codes

    Part replacement

    A failing control board may display mode-related codes outside of normal diagnostic sequences. If Sn appears repeatedly without entering Field Service Mode intentionally, the control board should be evaluated.

See the test procedure for each cause

Frequently asked questions about Sn

What does Sn mean on a GE dryer?
Sn on a GE dryer is a status indicator that appears during Field Service Mode, the dryer's built-in diagnostic test routine. It means the drive motor switched on and is running correctly during the motor test step. This is a normal, expected display during diagnostics and does not indicate a fault with the dryer.
Do I need to fix anything when I see Sn on my GE dryer?
In most cases, no repair is needed. Sn is a normal confirmation that the motor is running during a Field Service Mode test. If you did not intentionally enter diagnostics, simply unplug the dryer for about 60 seconds to reset the control board and the code should clear on its own.
Is it safe to use my GE dryer when Sn is showing on the display?
If Sn is appearing because the dryer is in Field Service Mode, the dryer is in a diagnostic state and normal operation may be interrupted until the mode is exited. Exit the diagnostic mode or perform a power reset before running a normal drying cycle. The code itself does not indicate any unsafe condition.
Will resetting my GE dryer clear the Sn code?
Yes, a reset will typically clear Sn from the display. Unplug the dryer from the wall outlet, wait at least 60 seconds, and plug it back in. This exits Field Service Mode and returns the control board to its normal operating state. If the code returns after a reset without you entering diagnostics, the control board may need further inspection.
How much does it cost to repair a GE dryer showing the Sn code?
Because Sn is normally a status indicator rather than a fault, there is often no repair cost involved. If a control board malfunction is causing the code to appear incorrectly, control board replacement on a GE dryer typically ranges from around $150 to $350 depending on the model and labor rates in your area.

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