The $20 Part Behind Some of the Most Expensive Air Con Callouts

I'm Mick, a heating and cooling technician in Melbourne, still on the tools. Most of what I get called out for is a setting or a habit, not a broken machine — nobody pays a tradie to sit down and explain that, so it never gets explained. That's what this channel is for. Every video ends with something specific to change: a temperature, a timer, a setting. 💬 Something odd going on with your system? Comment below — tell me what it's doing and what you've got. I read them. 🔔 New video every week. ⚠️ Refrigerant work is ARC-licensed and DIY electrical work is illegal in Australia. Anything behind a panel, ring a licensed technician. Everything here is what you can safely check and change yourself.