Bosch Dishwasher Error Code Wash (flashing)

A flashing Wash indicator on a Bosch dishwasher means the appliance detected a water fill failure and stopped the cycle to protect internal components. The control system did not sense enough water entering the tub within the expected time frame. The most common causes are a closed water supply valve, clogged inlet strainer filters, or household water pressure below 1 bar.

No, you should not attempt to run the dishwasher while this fault is active. The flashing Wash light means the machine has halted the cycle because it cannot fill with water. Running the wash pump without adequate water can cause the pump motor to overheat and sustain damage. Resolve the water supply issue before resuming normal use.

If the fix involves cleaning strainer filters or opening a water valve, there is no parts cost involved, only your time. If the water inlet valve has failed and needs replacement, parts and labor typically range from $100 to $250 depending on your location and service provider. Diagnosing the root cause before ordering parts will help avoid unnecessary expenses.

Start by confirming the water supply shut-off valve under the sink is fully open. Next, disconnect the inlet hose from the back of the dishwasher and clean the mesh strainer filters at the connection point. If those check out, verify that your home water pressure is at least 1 bar and inspect the inlet hose for kinks. If the fault remains after addressing all of these, the water inlet valve may need to be replaced.

A reset may clear the displayed fault temporarily, but the error will return on the next cycle if the underlying cause has not been corrected. To reset, press and hold the Start button for a few seconds or cancel the current cycle. Address the water supply, strainer filters, or pressure issue first, then restart the machine to confirm the fault is resolved.