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error Bosch
Error Code E:38
Supply voltage error — electrical supply voltage is too low (less than 98 volts).
? What Causes This
Low supply voltage, not a dishwasher fault.
✓ How to Fix It
1. Have the supply voltage and electrical installation checked by a qualified electrician.
Source: page 40 of the official manual
From the manual
This error code appears in:
Bosch SHSM63 Dishwasher