A Dacor EEPROM failure F6 F7 condition shows up on two separate Legacy platforms — Classic ERC wall ovens and ranges display F6 for this problem, while the EDW/IDW dishwasher platform displays F-7 for the equivalent condition — and on both, the documented remedy is the same: replace the board.
What an EEPROM actually is
EEPROM stands for electrically erasable programmable read-only memory, a small chip that retains configuration and calibration data even when the appliance is unplugged. On Legacy Dacor control boards, this chip is built into the board itself rather than existing as a separate replaceable component, which is exactly why a checksum failure in this memory calls for swapping the entire board rather than a single small part.
F6 on the Classic ERC oven and range platform
F6 is documented in Dacor’s own Tec-Line troubleshooting sheet as an EEPROM checksum error, with the stated remedy being ERC replacement. This affects the Classic ERC wall oven families (ECS/ECD, PCS/PCD, MCS/MCD) and the Classic range models sharing the same F0-F8 table.
F-7 on the Legacy EDW/IDW dishwasher platform
F-7 is documented in the EDW/IDW Dishwasher Service Manual as an EEPROM failure, a High-severity condition on that platform. Though the digit differs from the oven’s F6, the underlying failure — the memory chip built into the control board reporting a checksum problem — is conceptually identical.
Why “just reset it” will not fix either one
Because the EEPROM stores calibration data the board relies on for correct operation, a checksum failure here is not the kind of transient glitch a power cycle clears. If F6 or F-7 returns immediately after resetting power, that is confirmation the memory problem is persistent rather than a one-time event, and board replacement is the documented path forward on both platforms.
Why this differs from the Samsung-era platform
Samsung-era Modernist ovens, ranges, and dishwashers do not use EEPROM-specific error codes in the same way — their communication-error codes (C-F0, C-F2, and the dishwasher’s letter-suffix codes) describe board-to-board or board-to-panel links rather than a memory-chip failure specifically. This EEPROM-checksum concept is a Legacy-platform diagnostic detail that does not carry over to the newer control architecture.
When to book service
A confirmed F6 on an oven or range, or F-7 on a Legacy dishwasher, that persists after a power cycle is a board-replacement repair, worth scoping with an experienced technician who can confirm the exact board part number for your model. Our oven and dishwasher error code pages cover both in context, and scheduling a visit with the exact code and model ready speeds up the right part being brought along. See Dacor’s own site for current model listings if you are also weighing replacement.
