Skip to content

Fresh Comfort With Our Spring Refresh Sale

Rinnai Error Code E3

Common error codes
Hycool Air Conditioning & Electrical

Error Code E3 – Drainage / Water Leak Fault

If your Rinnai unit shows Error Code E3, it may indicate a drainage fault, water leak detection, or drain pump issue (model dependent). The unit may shut down to prevent water damage.

✅ Hycool Air Conditioning Sydney can clear drains, test pumps, and repair Rinnai E3 issues quickly. If E3 appears, call Hycool today.