Troubleshooting16Confirm and verify1.Press the ì Checkî switch on the remote controller for 1-2 seconds, ì Checkî will appear, andthe unit number and the error code will be displayed on the remote controller.2.The displayed number is the error unit number.3.Example is listed as follows:Normal:One error:Two errors:The signs will be displayed for a very short time. If not seen clearly, press the ì Checkî switch again.When failure occurs, use the remote controller to display the corresponding error code.CheckingFault codes and error placeFault codePut the nut on the screw bolt and suspend it on the T slot of the suspension part of the unit.Keep level of the body (within 5mm) with a gradoenter.Make sure and adjust the positions of the unit and the ceiling opening as well as the heightof the unit with the installation template.1. The bottom of the unit is 58mm from the lower ceiling surface. (four corners)2. Make sure that the front side of the indoor unit (tube side) is 95mm from the ceiling and theback side of the unit (opposite side) is 35mm from the ceiling with the template.Installation of the panelMount the panel after tubing and wiring installation.Please refer to P18-21 of this manual for the panel installation.Before installation, make sure that the positions of the indoor unit and the ceiling openingare correct.Requirements:There is no space between the panel and the ceiling and between the panel and the indoorunit, otherwise, dew or water leak may occur.Installation of remote controller5815indoor unitceilinginstallation templatefront side(tube side)95lowerceilingsurfaceindoor unit35back side(oppositeside)Tighten the upper nut to fix the indoor unit.installation template installation templatePlease refer to the installation manual for the installation of the remote controller.5Indoor unit installationsuspension screw(M10)tighten up with a nutgradienternut (M10)parts other than M10 flat gasket areprovided during installationM10 flat gasketM10 flat gasketfor safety, please mount accordingto this diagramnut (M10)