What would cause both the blower fan and the air conditioning to stop working in Mitsubishi Mirage 1998?

The blower fan and air conditioning in a 1998 Mitsubishi Mirage may stop working due to a blown fuse, which can interrupt power to both systems. Another possible cause could be a faulty relay or switch, preventing electrical signals from reaching the blower motor or A/C compressor. Additionally, issues with the climate control module or a malfunctioning wiring harness could also impact both components. It's advisable to inspect these elements to diagnose the issue accurately.