Ariston Washer Error Code F5

The F5 code on an Ariston washer signals either a blocked drain motor or a pressure switch that is shorted in the empty position. In both cases, the machine cannot properly manage water drainage or water level detection. The washer halts its cycle to prevent further damage until the underlying fault is corrected.

It is not recommended to continue using the washer while F5 is active. A blocked drain motor means water may not be expelled properly, which could lead to flooding or motor damage. A shorted pressure switch could cause the machine to misread water levels, creating unpredictable behavior during the wash cycle.

A reset may temporarily clear the F5 code and allow the machine to restart, but the error will return if the underlying problem has not been fixed. Resetting without addressing a clogged drain pump or faulty pressure switch can stress the motor further. Always diagnose and resolve the root cause before relying on a reset as a solution.

Start by inspecting the drain hose for kinks or blockages and confirm it is installed at the correct height. Next, clean the drain pump filter and check the impeller for obstructions. If those steps do not resolve the code, test the pressure switch and its air hose for shorts, cracks, or blockages. If a component has failed electrically, it will need to be replaced.

Repair costs vary depending on the root cause. Clearing a blocked drain hose or pump filter typically costs nothing beyond your time. If the drain pump motor needs replacement, parts and labor can range from $100 to $250. A faulty pressure switch is generally less expensive, with parts and labor typically falling in the $80 to $180 range.