MACO Service is an Android application developed by MHI - Mahajak Air Conditioners. The app is available for free and falls under the category of Utilities & Tools. It is designed to help users quickly search for error codes and their possible causes that may appear when there is a malfunction in Mitsubishi Heavy Industries Thermal Systems, Ltd air conditioning systems.

The application is equipped with a feature that enables users to scan the unit's QR code and search for the meaning of error codes based on the model type. The app covers several air conditioning systems of Mitsubishi Heavy Industries Thermal System, Ltd, including RAC: Single split & Multi split, PAC: Inverter & Non-inverter, KX: KX6 & KXZ series. MACO Service is a useful tool for anyone who is looking for a quick and easy way to troubleshoot issues with their air conditioning system.