Say goodbye to scale: the ultimate guide to cleaning your navien tankless water heater
What To Know
- Wipe down the exterior of the water heater with a soft cloth or rag.
- Turn on the water supply and open a hot water faucet to flush the system of any remaining debris or cleaning solution.
- Signs that your water heater may need cleaning include reduced hot water flow, increased noise, or a drop in water temperature.
Maintaining a pristine tankless water heater is crucial for its efficient operation and longevity. If you’re facing issues with your Navien tankless water heater, it may be time to delve into the depths of its cleaning process. This comprehensive guide will walk you through every step, ensuring your water heater regains its sparkling glory.
Tools and Materials
Before embarking on the cleaning journey, gather the following tools and materials:
- Phillips head screwdriver
- Flat head screwdriver
- Soft cloths or rags
- Soft brush
- Vinegar solution (equal parts vinegar and water)
- Lime-scale remover (optional)
Safety Precautions
1. Turn off the gas supply: Locate the gas valve and turn it to the “off” position.
2. Turn off the water supply: Shut off the cold water inlet valve to the water heater.
3. Unplug the electrical cord: Disconnect the water heater from its power source.
4. Wait for the water heater to cool: Allow the water heater to cool down completely before starting any cleaning tasks.
Step-by-Step Cleaning Instructions
1. Remove the Front Panel
Using a Phillips head screwdriver, remove the screws holding the front panel in place. Carefully lift the panel off and set it aside.
2. Clean the Exterior
Wipe down the exterior of the water heater with a soft cloth or rag. Remove any dust, dirt, or debris that may have accumulated.
3. Remove the Heat Exchanger
Locate the two flat head screws that secure the heat exchanger to the water heater. Remove the screws and carefully pull the heat exchanger out.
4. Clean the Heat Exchanger
Option 1: Vinegar Solution
- Submerge the heat exchanger in a vinegar solution for 30 minutes.
- Use a soft brush to gently scrub away any scale or mineral buildup.
Option 2: Lime-Scale Remover
- Follow the manufacturer’s instructions for using a lime-scale remover.
- Apply the remover to the heat exchanger and let it sit for the recommended time.
- Rinse the heat exchanger thoroughly with water.
5. Clean the Burner Assembly
Remove the burner assembly by unscrewing the screws that hold it in place. Use a soft brush to remove any dust or debris from the burner and igniter.
6. Clean the Water Inlet Filter
Locate the water inlet filter and remove it from the water heater. Rinse the filter with water to remove any sediment or debris.
7. Reassemble the Water Heater
Once all components are clean, reassemble the water heater in reverse order of disassembly.
Post-Cleaning Maintenance
1. Flush the system: Turn on the water supply and open a hot water faucet to flush the system of any remaining debris or cleaning solution.
2. Check for leaks: Inspect the water heater for any leaks. If leaks are present, tighten the connections or contact a professional plumber.
3. Regular maintenance: Clean your Navien tankless water heater annually to prevent scale buildup and ensure optimal performance.
Troubleshooting Tips
1. No hot water:
- Check if the gas supply and water supply are turned on.
- Reset the water heater by turning it off and then back on.
- If the issue persists, contact a professional plumber.
2. Water heater is leaking:
- Tighten the connections on the water inlet and outlet pipes.
- If the leak persists, contact a professional plumber.
3. Water heater is making noise:
- Sediment buildup in the heat exchanger can cause noise. Clean the heat exchanger following the steps outlined above.
- If the noise persists, contact a professional plumber.
Questions We Hear a Lot
Q: How often should I clean my Navien tankless water heater?
A: It is recommended to clean your water heater annually to prevent scale buildup and ensure optimal performance.
Q: Can I use bleach to clean my Navien tankless water heater?
A: No, bleach should not be used to clean a tankless water heater. Bleach can damage the components and void the warranty.
Q: How do I know if my Navien tankless water heater needs cleaning?
A: Signs that your water heater may need cleaning include reduced hot water flow, increased noise, or a drop in water temperature.