Troubleshooting & Setup
Heater Support FAQ
This is usually related to Flow Rate. Instant heaters heat water as it passes through. If your tap is fully open and the water is moving too fast, it doesn't have enough "contact time" with the 13kW elements. Try reducing the flow at the tap or adjusting the inlet valve. For the NX13, ensuring your 63A breaker is providing full voltage is also key.
This happens if the unit is installed on an undersized breaker (e.g., using a 20A or 32A breaker for a 13kW unit). The NX13 pulls ±56.5A; if your breaker is rated lower than 63A, it will trip for safety. It can also happen if the heater is sharing a circuit with other high-power appliances like a stove or kettle.
Installation must follow three strict steps:
1. **Mounting:** Secure the unit vertically near the point of use.
2. **Plumbing:** Connect the cold water inlet (Right) and hot outlet (Left).
3. **Electrical:** Run a dedicated line (6mm for NX13) from a 63A breaker. Always flush water through the unit BEFORE turning on the electricity to prevent dry-burning the elements.
Installation Diagram (Refer to instruction Manual your model)
