Temperzone Error Code D1
Common error codes
Error Code D1 – Drain / Water Leak Fault
If your Temperzone unit displays D1, it often indicates a drainage fault or water leak detection (where fitted). Common causes include blocked drain lines or drain pump faults.
✅ Hycool Air Conditioning Sydney can clear drains and repair D1 faults quickly. If D1 appears, call Hycool now.
