Bosch Dishwasher — Error Code E26
A main control board fault was detected.
Ranked repair steps
No user remedy is shipped for this code yet — consult the manufacturer listing linked below or request service.
Educational reference, not a substitute for the manufacturer's service manual. Disconnect power and water before servicing; gas, sealed-refrigerant, and high-voltage work is for qualified technicians only.
Provenance: facts re-derived from an disclosed repair reference — ApplianceCodeHub — Bosch Dishwasher Error Codes. Meanings and steps are original paraphrase; nothing is reproduced verbatim.
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