Bosch Dryer Error F01

How to Fix F01 Error (Step-by-Step) Turn off the water supply and unplug the dryer and confirm the error stays cleared during a full test cycle.Access the rear of the dryer to locate the water inlet valve.Place a towel beneath the hoses to catch any residual water and then disconnect them from the valve.Remove the mounting screws that hold the inlet valve in place.Carefully disconnect the electrical wires from the old valve and confirm the error stays cleared during a full test cycle.Install the new inlet valve by securing it with the mounting screws and reconnecting the electrical wires.Reattach the water hoses, turn the water supply on, and check for leaks before plugging the dryer back in.Turn the appliance off, wait about 2 minutes, then turn it back on.

What to Check Next on This Bosch Dryer Use these checks before ordering parts for Bosch dryer F01. They keep the diagnosis tied to the appliance instead of turning the page into a reset-only guide. Unplug the dryer before touching the lint housing, rear vent, lower service area, or any wiring. Clean the lint screen, moisture sensor bars, condenser area if equipped, and the full vent path so airflow problems do not imitate part failures. Run a short timed cycle with a light load and note whether the fault appears immediately, after heating starts, or near the end of the cycle. If the fault returns with clean airflow, inspect the part categories below using the full model number from the dryer tag. Stop repeated test cycles if you smell heat, see moisture near electrical areas, or hear grinding from the drum drive.