mypros+
Error code reference

GE Range Error Code F6 E4

Lost communication between display board and power board.

GE codesGE range codes

Lost communication between display board and power board.

First step from the service manual

Unplug range or disconnect power, open back panels and verify P2 connector is fully plugged in on both the power board and display board.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

MyPros+ Max

Get the full diagnostic procedure for F6 E4.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What F6 E4 means on a GE range

The F6 E4 error code on a GE range indicates a loss of communication between the display board and the power board. These two boards work together continuously: the display board handles user input and sends commands, while the power board controls the actual heating elements and major electrical loads. They communicate through a dedicated wiring harness, and when that signal is interrupted or cannot be established, the control system flags F6 E4 and typically shuts down operation to prevent uncontrolled behavior.

The most frequent physical cause is a loose or partially seated connector at the P2 connection point, which links the two boards through the wiring harness. Vibration during normal use, installation handling, or even thermal expansion and contraction can gradually work a connector loose over time. Beyond a loose connector, the wiring harness itself can develop damage such as pinched wires, broken conductors, or corroded terminals, all of which interrupt the communication signal. In less common cases, one of the boards may have an internal failure that prevents it from participating in the communication loop.

Diagnosing this fault starts with a full power disconnect, then accessing the back panels to physically inspect and reseat the P2 connector at both the power board and display board ends. If reseating the connector does not resolve the code, the harness should be inspected along its full length for damage. If the harness is intact and the connector is secure, the next step is evaluating whether the display board or power board has failed and requires replacement.

Source: manufacturer service documentation.

Common causes of F6 E4

  1. 01

    Loose or unseated P2 connector

    Wiring / connection

    The P2 connector linking the display board and power board may have worked loose from one or both ends. Unplugging the range and firmly reseating the connector at both board ends is always the first step.

  2. 02

    Damaged wiring harness

    Part replacement

    The harness running between the two boards can develop pinched, broken, or corroded wires, especially near edges or panel openings. Inspect the full length of the harness for visible damage or discoloration.

  3. 03

    Corroded or damaged connector terminals

    Part replacement

    Terminal pins inside the P2 connector can corrode or become bent, preventing a reliable electrical connection even when the connector appears seated. Check the pins visually and look for any signs of arcing or oxidation.

  4. 04

    Failed display board

    Part replacement

    If the wiring and connectors check out, the display board itself may have an internal failure that prevents it from maintaining communication with the power board. This typically requires board replacement to resolve.

  5. 05

    Failed power board

    Part replacement

    Less commonly, the power board may be the source of the communication failure. If the display board has been confirmed functional and all wiring is intact, the power board should be evaluated for replacement.

See the test procedure for each cause

Frequently asked questions about F6 E4

What does F6 E4 mean on a GE range?
F6 E4 indicates that the display board and power board have lost communication with each other. These two boards must exchange signals continuously for the range to operate, and when that link is broken the control system triggers this fault code. The range will typically stop functioning normally until the communication issue is resolved.
Can I fix the F6 E4 error myself without calling a technician?
In many cases, yes. The most common fix is unplugging the range, removing the back panels, and firmly reseating the P2 connector at both the display board and power board. If that resolves the code, no parts are needed. If the fault returns or persists, further diagnosis involving the wiring harness or boards may require more technical comfort or professional help.
Will resetting the range clear the F6 E4 code?
A power reset by unplugging the range for a few minutes may temporarily clear the code, but if the underlying connection problem is not fixed, the error will return when communication between the boards fails again. A reset alone is not a repair. Physically inspecting and reseating the P2 connector is necessary to address the root cause.
Is it safe to use my GE range while it is showing F6 E4?
It is not recommended. The F6 E4 fault means the control system cannot reliably communicate between its main boards, which can result in unpredictable operation or a complete loss of control over the heating elements. The range should remain unplugged or powered off until the fault is properly diagnosed and corrected.
How much does it cost to repair a GE range with an F6 E4 error?
If the fix is simply reseating a connector, there is no parts cost involved. If the wiring harness needs replacement, parts typically run in the range of $30 to $80 depending on the model. A display board or power board replacement generally costs between $100 and $300 or more for parts, with additional labor costs if a technician is doing the work.

Related GE range codes

All GE range codes
View all 303 GE range codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass