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Error code reference
Viking Dishwasher Error Code E:09
Display board communication fault: communication between the main electronic board and display electronic board is lost during normal operation.
SourceViking Dishwasher - Service Manual: FDWU/VDWU 324/524 Seriesp. 34
Diagnostic procedure
The full E:09 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check cable harness errors, faulty socket installation, faulty electronics, main electronic board, or display electronic board.
SourceViking Dishwasher - Service Manual: FDWU/VDWU 324/524 Seriesp. 34
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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