Written by
Jordan Avery Appliance Repair Content SpecialistPublished October 20, 2026
Content status:
Verified
Error codeF8 / F-8
ApplianceDishwasher
Quick answer
On older Dacor EDW/IDW dishwashers F8 signals a data error between control board and power board.
Model compatibility: Bosch reuses codes across series and model years, so F8 / F-8 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Communication failure: data error between control board and power board (wet low-voltage connector is the most common cause).
F8 explained
Two boards talk to each other in these dishwashers: the control board in the door (the master micro) and the power board in the base (slave 1 micro). F8 (F-8) means the data transfer between them has failed.
Most common cause
The manual puts the wet connector first. Four wires in a low-voltage connector link door and base, carrying ground, 5 VDC, data and neutral.
Models
EDW/IDW 24-inch, Epicure and Distinctive. Legacy series.
Owner action
Disconnect electrical supply at the breaker.
Do not open the connector yourself; a technician checks the wiring and boards.
Dacor dishwasher service across the SC metro areas
Miami, New York, Houston, Los Angeles and San Diego are covered. Reach (844) 410-4158, state the F8 code and model number, or start at Dacor dishwasher repair.
Source: EDW/IDW Dishwasher Service Manual (SM_EDW_20110922), Fault Code/Diagnosis
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
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