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Error code reference

Dcs Oven Error Code FC

Breakdown in serial communications between the user interface board and the temperature control board detected for 4 to 5 seconds.

Dcs codesDcs oven codes
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What the FC error code actually means

The FC error means that two of the oven's internal control boards have stopped communicating with each other, and the oven detected this problem for several seconds in a row. Think of it as two important parts of the oven's brain losing their connection. The oven shuts down normal operation to prevent unsafe behavior until the communication issue is resolved.

Diagnostic procedure

The full FC procedure

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1
Confirm the fault
Power cycle the unit: switch off the breaker for 60 seconds, then restore power. If the code returns, the fault is persistent and the procedure below isolates the cause.
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Most common causes of FC

Ranked by how often they cause this code
  1. 1Loose or corroded wiring harness connector
  2. 2Damaged wiring between control boards
  3. 3Failed user interface board
  4. 4Failed temperature control board
  5. 5Intermittent power supply issue

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Questions people ask about FC

What does FC mean on a DCS oven?
The FC error code on a DCS oven indicates a breakdown in serial communications between the user interface board and the temperature control board. The oven's control system detects this communication failure after it persists for 4 to 5 continuous seconds. The code is a signal that these two critical boards are not exchanging data properly, which prevents the oven from operating safely.
Is it safe to use my DCS oven when the FC error code is displayed?
No, it is not advisable to continue using the oven while the FC code is active. The error indicates the two main control boards cannot communicate, which means the oven's temperature regulation and control functions cannot operate reliably. Using the oven in this condition could lead to unpredictable heating behavior or a complete loss of control over oven functions.
How do I fix the FC error code on a DCS oven?
Start by powering the oven off at the circuit breaker for several minutes and restoring power to see if the code clears. If it returns, the next step is to inspect the wiring harness and connectors between the user interface board and the temperature control board for looseness, corrosion, or visible damage. If the wiring appears intact, one or both of the control boards may need to be replaced. Because this repair involves internal electronics, it is recommended to have a qualified appliance technician perform the diagnosis and any board replacement.
Can I reset the FC error code on my DCS oven to clear it?
You can attempt a reset by powering the oven off at the circuit breaker for a few minutes and then restoring power. If the underlying communication fault is caused by a transient issue, the code may clear. However, if the FC code returns after the reset, there is a persistent hardware problem with the wiring, connectors, or one of the control boards that must be diagnosed and repaired.
How much does it cost to fix the FC error on a DCS oven?
Repair costs depend on which component has failed. If the issue is a loose connector or harness, the cost may be limited to a service call fee, typically in the range of $75 to $150. Replacing a user interface board or temperature control board generally adds $150 to $400 or more in parts costs, depending on availability, plus any additional labor charges from a qualified technician.

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