Frigidaire · Dishwasher
Frigidaire Dishwasher iB0 Error Code
Door latch or switch fault
What this error means
iB0 means the door switch circuit failed—related to CL door switch codes on some models.
How IB0 is detected
Frigidaire dishwasher models lock the door or lid before energizing fill, heat, or high-speed spin. IB0 means the latch switch never sent a "locked" signal to the main control, or the lock motor did not complete its travel. On Frigidaire FGID2479SF, Frigidaire FDPH4316AS, and similar variants, clothing caught in the gasket, a misaligned strike, or a failed latch assembly are the most common mechanical causes—not the board itself.
Inspect the door gasket perimeter and strike alignment before replacing the latch. Misaligned strike is reported frequently on this code. After correcting mechanical issues, close door until latch clicks. If the latch clicks but IB0 persists, the door lock switch or wiring harness to the control board likely needs testing with a multimeter.
Do not force the door open during an active cycle; wait for the lock to release when the board de-energizes the lock motor—usually two to three minutes after canceling power on most Frigidaire units.
Common causes
- Misaligned strike
- Broken latch hook
- Switch lever stuck
- Door harness wire broken
Step-by-step fixes
- 1Close door until latch clicks
- 2Clean latch receiver
- 3Inspect strike alignment
- 4Run cycle after firm close
When to call a technician
Latch assembly replacement when door appears sealed but iB0 repeats.
Affected models
- Frigidaire FGID2479SF
- Frigidaire FDPH4316AS
- Frigidaire FFCD2413US
Prevention & maintenance
- Wipe the door gasket weekly and avoid overloading items against the seal—IB0 often starts as a slow leak or latch misalignment.
- Record when IB0 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 IB0; Frigidaire uses multiple revisions with different harness lengths and board firmware.
- Photograph wiring connector orientation before disconnecting any component while troubleshooting IB0; reversed plugs on pumps and valves cause immediate repeat faults.