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Error code reference

Maytag Range Error Code FC

Communication error between boards (power relay board side).

Maytag codesMaytag range codes

Communication error between boards (power relay board side).

First step from the service manual

Check J2 harness; if ok, replace PRB.

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

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What FC means on a Maytag range

The FC error code on a Maytag range indicates a communication failure between the main control board and the Power Relay Board (PRB). The PRB is responsible for switching high-voltage circuits to key components such as the bake and broil elements, surface burner igniters, and other load-driven systems. The two boards communicate over a dedicated data line, and when that signal is lost or corrupted, the control system flags the FC code and may shut down range operation to prevent unsafe conditions.

The first point of investigation is the J2 wiring harness, which is the connector that links the main control board to the PRB. A loose pin, corroded terminal, broken wire, or damaged connector housing on this harness can interrupt the communication signal entirely. Inspecting J2 means physically checking for secure seating at both ends, looking for any burnt or discolored terminals, and verifying that no wires have pulled free from their crimp connections.

If the J2 harness checks out and all connections are confirmed solid, the fault is most likely an internal failure of the Power Relay Board itself. Relay boards can fail due to heat stress, relay contact damage, or component failure on the board's logic circuitry. In that scenario, replacing the PRB is the recommended corrective action. The main control board is a less likely culprit but should be considered if a new PRB does not resolve the code.

Source: manufacturer service documentation.

Common causes of FC

  1. 01

    Loose or disconnected J2 harness connector

    Wiring / connection

    The J2 harness is the primary communication link between the main board and the PRB. Vibration or improper reassembly can cause the connector to seat partially or pull free, breaking the signal.

  2. 02

    Corroded or damaged J2 harness terminals

    Wiring / connection

    Individual pins inside the J2 connector can corrode, burn, or back out of the housing over time. Inspect each terminal for discoloration, oxidation, or physical damage that would cause an intermittent or open connection.

  3. 03

    Failed Power Relay Board (PRB)

    Part replacement

    Internal component failure on the PRB can prevent it from communicating with the main control board even when wiring is intact. This is the most common hardware repair once the harness has been ruled out.

  4. 04

    Broken or chafed wire in the J2 harness

    Part replacement

    A wire within the harness may be internally broken or shorted due to heat exposure or physical damage, producing no visible external clue at the connector itself. Continuity testing each wire in the harness will identify this condition.

  5. 05

    Failed main control board

    Part replacement

    If a new PRB and a verified intact harness do not clear the FC code, the main control board may have lost its ability to drive the communication line. This is the least likely cause but should be evaluated last.

See the test procedure for each cause

Frequently asked questions about FC

What does FC mean on a Maytag range?
FC stands for a communication error between the main control board and the Power Relay Board (PRB). The PRB controls high-voltage switching for heating elements and other components, and when the signal between the two boards is lost, the range generates this code. The fault can originate from a wiring harness problem or a failure of the PRB itself.
Can I fix the FC error code myself?
A knowledgeable DIYer can start by unplugging the range and inspecting the J2 harness connector at both the main board and PRB for loose, burnt, or corroded terminals and reseating any connections. If the harness is intact and secure, resolving the fault will require replacing the Power Relay Board, which involves working inside a unit with high-voltage components and is best handled by a qualified technician.
Is it safe to use my Maytag range while the FC code is displayed?
It is not recommended to continue using the range while the FC code is active. The communication failure between the control board and the Power Relay Board means the control system cannot reliably manage the high-voltage switching circuits that operate the heating elements. Using the appliance in this condition could lead to unpredictable behavior or a safety hazard.
Will resetting the range clear the FC error code?
Resetting the range by unplugging it for a few minutes may temporarily clear the FC code, but the error will return if the underlying cause is not corrected. If a harness connector was simply jarred loose, reseating it after a reset may resolve the issue permanently. If the PRB has failed, the code will reappear and a component replacement will be necessary.
How much does it cost to repair an FC error code on a Maytag range?
Repair costs depend on whether the fault is simply a wiring connection issue or requires a new Power Relay Board. A harness reseating or terminal repair by a technician will typically cost less, covering labor only. If the PRB needs replacement, total costs including parts and labor generally range from around $150 to $350 or more depending on the specific model and local labor rates.

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