WAREWASH MACHINE SYSTEM AND METHOD FOR DETECTING CLOGGED WASH ARM

摘要

A method of detecting a clogged or partially clogged wash arm (16) in a warewash machine (10) involves the steps of: monitoring a rotational speed of the wash arm (16) during a washing step of a ware cleaning cycle or operation; and comparing the monitored rotation speed to a set threshold speed and, if the monitored rotational speed falls below the set threshold speed, triggering an operator alert to advise the machine operator to check the wash arm. An advantageous sensor arrangement (64, 68) associated with a wash arm manifold (58) is also provided.