Error code reference
Frigidaire Dishwasher Error Code i57
MCB Vbat voltage plausibility / ADC Fault
MCB Vbat voltage plausibility / ADC Fault - error set if currents are not changing within 2.5s with less than 0.0275A for WP.
First step from the service manual
Check wash motor wire harness and connections to PCB
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
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Get the full diagnostic procedure for i57.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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