2025-06-27 00:00:00 MHI e-service is an application that enables users to make a quick search of the meaning of error codes that may appear when there is a malfunction in "Mitsubishi Heavy Industries Thermal Systems, Ltd" Air conditioning system, and the probable cause of the malfunction. In addition this application enables you to scan unit's QR code and search the meaning of error codes depending on the model type. The application covers "Mitsubishi Heavy Industries Thermal Systems, Ltd" Air conditioning systems: Split (RAC & PAC), VRF, Q-ton & A2W.