Turning Off a Navien Tankless Water Heater
If you need to turn off your Navien tankless water heater, whether it be for routine maintenance, an extended vacation, or troubleshooting, follow these step-by-step instructions to ensure you do it safely and correctly.
Step 1: Turn Off the Gas Supply
Before turning off the water heater, you should first turn off the gas supply to the unit. This is a safety measure that ensures no gas is flowing to the heater when it’s not in use. Look for the gas shut-off valve (usually a lever or knob) near the water heater and turn it to the ‘off’ position.
Step 2: Turn Off the Water Supply
Next, turn off the water supply to prevent any further water from entering the heater. Locate the main water valves — there should be two: one for cold water going into the unit and another for the hot water coming out. Turn both valves to the ‘off’ position.
Step 3: Power Down the Unit
Now, you need to turn off the power to the water heater. Find the power button on the Navien unit, which is often located on the front panel. Press this button to power down the unit.
Step 4: Unplug the Unit (If Applicable)
If your model of the Navien water heater has a plug, disconnect it from the power outlet for additional safety, especially if you are going to perform any maintenance.
Step 5: Drain the Unit (If Necessary)
If you are planning to perform maintenance or leave the water heater unused for an extended period, you might also need to drain the unit to prevent any water from freezing inside, which could cause damage. Refer to the user manual for instructions specific to your model on how to drain the unit properly.
Step 6: Turn Off the Remote Control (Optional)
If your Navien comes with a remote control unit, you can also turn it off. This step is optional and mostly for energy-saving purposes while the water heater is not in use.
Reactivating Your Navien Tankless Water Heater
When you need to turn the Navien tankless water heater back on, simply reverse the order of these steps:
- Plug in the unit if it was unplugged.
- Turn on the power using the power button on the unit.
- Open the water supply valves for both the cold and hot water lines.
- Turn on the gas supply by opening the gas shut-off valve.
- If you have a remote control, turn it back on as needed.
Allow a few minutes for the unit to go through its start-up cycle. You may need to follow additional start-up procedures as outlined in your Navien water heater’s user manual.
Important Reminder
Always consult the user manual for your specific Navien tankless water heater model before attempting to turn it off or on. The manual will contain the most accurate and detailed instructions for your unit, including any safety considerations to keep in mind. If at any point you are unsure about the process or encounter problems, it is advisable to contact a professional technician for assistance.
Remember, safety should always be your primary concern when dealing with gas and electrical appliances.