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Error code reference

Dacor Oven Error Code C44

FLASH checksum failure on control board-calculated FLASH checksum does not agree with stored FLASH checksum.

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What the C44 error code actually means

Your Dacor oven's main control board has detected a problem with its own internal programming memory. The board ran a self-check and found that its stored software does not match what it expected, which means the programming may be corrupted. This is a control board issue, not something caused by a cooking component like a heating element or sensor.

Diagnostic procedure

The full C44 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 C44

Ranked by how often they cause this code
  1. 1Corrupted FLASH memory on the control board
  2. 2Power surge or voltage spike
  3. 3Failed or incomplete firmware update
  4. 4Degraded or failing FLASH memory chip
  5. 5Transient electrical disturbance

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Questions people ask about C44

What does C44 mean on a Dacor oven?
C44 indicates a FLASH checksum failure on the oven's electronic control board. The board performs a self-check of its firmware memory on startup, and C44 appears when the calculated checksum does not match the stored checksum. This points to corrupted or unreliable firmware data within the control board itself, not a problem with heating elements or sensors.
Is it safe to use my Dacor oven while C44 is displayed?
A C44 error reflects an internal control board fault, meaning the board cannot confirm its own firmware is intact. Operating the oven in this state is not recommended because the control board may not function reliably or predictably. It is best to stop using the oven until the fault is diagnosed and resolved.
How much does it cost to repair a Dacor oven showing C44?
If the repair requires a new control board, parts alone typically range from around $150 to $400 or more depending on the specific model, with labor adding to the total if a technician is hired. If the error clears after a simple power reset and does not return, there may be no parts cost at all. Getting a diagnostic visit from a certified technician before ordering parts is a good way to confirm the board is actually at fault.
Can I fix a C44 error on my Dacor oven myself?
Start by performing a hard reset: disconnect power to the oven at the circuit breaker for several minutes, then restore power and check if the error returns. If the code clears and does not come back, a transient electrical event was likely the cause. If C44 returns consistently, the control board likely has corrupted or failing FLASH memory, and board replacement is the standard repair, which is generally best handled by a qualified technician.
Will resetting the oven clear the C44 error code?
A power reset may clear C44 if the failure was caused by a temporary electrical disturbance. To reset, turn off the oven at the circuit breaker for a few minutes before restoring power. However, if the FLASH memory on the control board is genuinely corrupted or degraded, the error will return after each reset and a board replacement will be necessary.

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