Ensure the overflow tube and filters are properly seated before filling. Allow the unit to reach its operating temperatures before starting the first cycle.
Even with the manual, some components have a lifespan. If your FI-80 is over 12–15 years old and you are facing repeated error codes (especially the heating element or control board), part availability may be difficult. Fagor left the appliance market, so sourcing original electronic components is challenging. fagor fi-80 dishwasher manual