Method for determining malfunction of a liquid drainage pump and related control device and liquid drainage pump

Abstract

A method for determining malfunction in a liquid drainage pump includes: obtaining a liquid discharge condition during operation of the liquid drainage pump in a first mode, the liquid discharge condition including one or more of a time variation trend of liquid in a liquid storage tank of the liquid drainage pump, start and stop times of the liquid drainage pump, a liquid discharge volume per unit time, and a liquid discharge speed of the liquid drainage pump; determining whether a liquid discharge abnormality occurred based on the liquid discharge condition; and determining that the liquid drainage pump has a malfunction when a statistical number of liquid discharge abnormalities in a continuous time period exceeds a first threshold. The method can quickly determine whether a liquid drainage pump has a liquid discharge malfunction such as a blockage or component damage, and reduce time and effort of manual troubleshooting.

Dependencies are inferred from the claim text.