Frigidaire · Dishwasher
Frigidaire Dishwasher iG0 Error Code
Relay or output driver fault on control
What this error means
iG0 means a control board output relay failed verification during self-test.
How IG0 is detected
IG0 on Frigidaire dishwasher units indicates the drive system did not meet expected performance. Direct-drive washers monitor rotor position with a hall sensor; dryers and dishwashers track motor current draw. When the drum or spray arm fails to turn, the inverter or motor relay shuts down to prevent burned windings. Frigidaire FGID2479SF, Frigidaire FDPH4316AS, and similar variants may show this fault after an overloaded tub or a foreign object jam.
Welded relay contact is a leading trigger. Start with power off and inspect board for burn marks. Rotate the drum or spray arm by hand when powered off—it should move without grinding. Grinding confirms mechanical obstruction; free rotation with repeated IG0 on light loads suggests hall sensor, motor, or inverter board failure requiring professional diagnosis.
Common causes
- Welded relay contact
- Burned driver transistor
- Moisture on board
- Motor short damaging relay
Step-by-step fixes
- 1Power off and inspect board for burn marks
- 2Identify which function fails—fill, heat, or drain
- 3Do not bypass relays
- 4Note model for control ordering
When to call a technician
iG0 requires main control board replacement.
Affected models
- Frigidaire FGID2479SF
- Frigidaire FDPH4316AS
- Frigidaire FFCD2413US
Prevention & maintenance
- Avoid washing single heavy rugs or shoes that bind the drum; distribute weight evenly to reduce motor strain that precedes IG0.
- Record when IG0 appears in the cycle and whether it clears after a 60-second power reset on your Frigidaire dishwasher—that detail speeds diagnosis if you call service.
- Keep the model and serial number from the rating plate when ordering parts for IG0; Frigidaire uses multiple revisions with different harness lengths and board firmware.
- Photograph wiring connector orientation before disconnecting any component while troubleshooting IG0; reversed plugs on pumps and valves cause immediate repeat faults.