Aircon Troubleshooting Guide
Aircon Troubleshooting: If the aircon controller displays an A4 error code or the unit is not cooling properly , please try the following steps: Method 1: Power cycle the circuit. The circuit is located in the bedroom wardrobe (03 units in the cabinet outside the bathroom). The aircon circuit is usually the 4th switch from the left . Turn it off, wait for a couple of minutes, and then turn it back on. Method 2: Using the dedicated Allen key found in the office toolbox , open the ceiling aircon system cover. Then, operate the two pipe valves (as shown in the picture) several times (at least 6 cycles). This procedure helps to clear the pipes and may restore proper cooling. Method 3: If Methods 1 and 2 do not work, the aircon may require a hardware reset . To perform this, open the control panel located on the opposite side of the two valves mentioned above. On the control board, there is a black reset button — press and hold this button to reset the system. If none o...
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