: Look for scorching around the output terminals, which indicates a high-resistance connection or overload.
: These are for the AC load. Ensure the Heatsink is properly grounded as per the latest safety standards. rm28525 schematic diagram updated
: Check that the thermal paste between the component and the heatsink has not dried out. : Look for scorching around the output terminals,
: Input control terminals where the low-voltage signal is applied to switch the relay on or off. rm28525 schematic diagram updated