HomePure Nova
Spare Parts
& DIY Replacement Guide
WHY IT MATTERS
Why HomePure Nova Maintenance Is Important
Consistent water quality
Replacing the filter cartridge and worn parts helps your Nova maintain its filtration performance over time.
Leak and damage prevention
Fresh O-rings, valves, and hoses protect your kitchen from unexpected drips or bursts.
DIY-friendly upkeep
Changing the Filter Cartridge
The filter cartridge is designed for about 5,000 litres or a year of regular use. Change it once you reach either limit or when the indicator tells you it’s time.
- Close the diverter valve and disconnect the tubing.
- Open the front cover and remove the top cover and retainer ring.
- Detach the old filter from the head adapter.
- Clean the filter housing and install the new filter.
- Replace the batteries and reset the unit.
- Reassemble everything, reconnect the pipes, flush for 10 minutes.
Installing New Batteries
HomePure Nova runs on batteries, so you don’t need a power outlet. Swap them once a year or whenever you change the filter.
- Turn off the unit and disconnect the tubing.
- Open the front cover and lift off the top cover.
- Locate the battery compartment inside the unit.
- Remove both old AA batteries.
- Insert two new AA batteries in the correct orientation.
- Close the covers, reconnect the tubing, run the unit to confirm proper operation.
Replacing the LED Indicator
- Turn off the unit and remove the front cover.
- Lift off the top cover to access the LED module.
- Disconnect the LED connector from the circuit board.
- Remove the old LED indicator and insert the new one.
- Reconnect the LED connector securely.
- Reassemble the covers, power on the unit to verify the indicator lights up.
Replacing the One-Touch Elbow Fitting
- Turn off the water supply and disconnect the inlet tube by pressing down the white ring.
- Remove the old elbow fitting from the inlet port.
- Insert the new one-touch elbow fitting firmly into the port.
- Reconnect the inlet tube until it locks securely in place.
- Turn the water back on and check for leaks.
Securing the Seal with an O-Ring Replacement
The O-ring ensures a watertight seal inside the unit. Replace it if you see leaks, cracks, or if the seal feels loose or worn.
- Turn off the water supply and open the unit to access the sealing area.
- Remove the old O-ring carefully to avoid scratching the groove.
- Clean the groove and surrounding area to remove buildup.
- Lightly moisten the new O-ring and place it evenly into the groove.
- Close and secure the component to ensure proper sealing.
- Turn the water back on and check for any signs of leakage.
Restoring the Flexible Pipe
- Turn off the water flow and remove the old flexible pipe by twisting it counterclockwise.
- Clean the nozzle area to remove any residue.
- Align the new flexible pipe with the nozzle.
- Twist it clockwise until it is securely tightened.
- Turn the water back on and check for proper flow and leaks.
Replacing the Connecting Hose
The connecting hose supplies water to the unit. Replace it if it becomes worn, discoloured, or starts leaking.
- Turn off the water supply and release any remaining pressure.
- Disconnect the hose from both ends by pressing down the connectors.
- Remove the old hose and check the ports for debris.
- Attach the new connecting hose securely to both ends.
- Turn the water back on and confirm there are no leaks.
Changing the Cartridge Valve
- Turn off the water supply and open the unit to access the valve.
- Disconnect the tubing attached to the cartridge valve.
- Remove the old valve from its slot or connector.
- Install the new cartridge valve securely in the same position.
- Reconnect the tubing and ensure it locks firmly.
- Restore water flow and check for smooth operation.
Replacing Knob Set
The knob set controls basic user adjustments. Replace it if it becomes loose, cracked, or difficult to turn.
- Turn off the unit and remove the front cover to access the knob.
- Pull out the old knob set carefully from its shaft.
- Check the shaft for dirt or damage and clean if needed.
- Align the new knob set with the shaft.
- Press it firmly into place until it locks.
- Reassemble the cover and test the knob for smooth movement.
Swapping the One-Filter Case
- Turn off the water supply and open the unit to access the filter case.
- Remove the retainer ring and detach the existing filter case.
- Lift out the filter and check the surrounding area for debris.
- Place the filter into the new case and secure it with the retainer ring.
- Reassemble the unit and ensure the case sits evenly and seals properly.
- Turn the water back on and check for leaks or irregular flow.
Upgrading the Head Nozzle
The head nozzle guides the final water output. Replace or upgrade it if the flow becomes uneven, weak, or the nozzle shows signs of wear.
- Turn off the water flow and remove the existing head nozzle by twisting or pulling it off.
- Clean the nozzle base to remove any debris or buildup.
- Align the new head nozzle with the outlet.
- Attach it firmly until it locks or clicks into place.
- Turn the water back on and check for smooth, even flow.
Renewing the Head Adapter Set
The head adapter set connects the filter cartridge to the unit. Replace it if it becomes loose, worn, or no longer locks the cartridge securely.
- Turn off the water supply and open the unit to access the head adapter.
- Remove the retainer ring and detach the old head adapter set.
- Separate it from the filter cartridge if still attached.
- Connect the new head adapter set to the cartridge.
- Reassemble the unit and check that the cartridge locks firmly.
- Secure it in place with the retainer ring.
Installing the Retainer Ring
- Turn off the water supply and open the unit to access the cartridge area.
- Ensure the cartridge and head adapter are seated correctly.
- Position the retainer ring over the adapter alignment points.
- Press it down evenly until it clicks or locks into place.
- Check that the cartridge is firmly secured and does not move.
- Reassemble the unit and restore water flow to confirm stability.
Changing the Silicone Cap
The silicone cap protects the reset button and prevents moisture from entering the unit. Replace it if it becomes loose, torn, or worn out.
- Turn off the unit and open the top cover to access the cap.
- Pull off the old silicone cap gently from its slot.
- Check the surrounding area for dust or moisture and wipe if needed.
- Align the new silicone cap over the reset button.
- Press it firmly into place to ensure a proper seal.
- Reassemble the cover and confirm the cap sits securely.
Installing an Adapter Valve
The adapter valve connects your water source to the unit. Replace or install it when upgrading, fixing leaks, or improving compatibility.
- Turn off the water supply at the faucet or main source.
- Remove the existing connector or valve from the water outlet.
- Clean the threads to ensure a proper seal for the new adapter valve.
- Attach the new adapter valve and tighten it securely by hand.
- Reconnect the hose or inlet tube to the adapter valve.
- Turn the water back on and check for a steady flow with no leaks.
Replacing the Diverter Valve
- Turn off the water at the faucet and detach the inlet tube from the diverter valve.
- Unscrew and remove the old diverter valve from the faucet.
- Check the faucet threads and clean them if needed.
- Install the new diverter valve and tighten it securely by hand.
- Reconnect the inlet tube until it locks firmly.
- Turn the water back on and test the switching function for smooth flow.
Swapping the Installation Hose
The installation hose delivers water from your faucet or adapter valve to the unit. Replace it if it becomes worn, stiff, or leaks.
- Turn off the water supply at the faucet or valve.
- Disconnect the hose from both ends by pressing down the connectors or unscrewing the fittings.
- Remove the old hose and check both ports for debris or buildup.
- Attach the new installation hose securely on both sides.
- Make sure each connection locks or tightens properly.
- Turn the water back on and confirm there are no leaks.
CARE
When Should You Maintain or Upgrade Your Nova?
A few simple signs tell you it’s time.
LED alerts
Yellow or red LED signals, or no light at all, can indicate that the filter, batteries, or LED PCB need attention.
Reduced flow
A noticeably weaker water stream often points to filter, hose, or O-ring issues.
Drips or leaks
Moisture around joints, the base, or the elbow fitting usually means it’s time to inspect hoses, O-rings, or valves.
SUPPORT
Need Help with Your Nova?
If any step feels unclear or you notice unusual behaviour, QNET Global Support Centre can guide you.
How do I contact QNET support?
Use your QNET portal to reach the Global Support Centre for troubleshooting and warranty queries.
International Toll-Free Numbers
Have purchase details ready and take photos/videos of the issue.
FAQ
Frequently Asked Questions
A quick reference before you send your watch in for service.
Do I need tools?
Only fuse replacement requires a screwdriver. Everything else is tool-free.
How often to replace the inlet tube?
About every 2 years or sooner if damaged.
Can I use non-original parts?
Not recommended—the unit may leak or malfunction.
Why is the water flow weak?
Likely due to a clogged dust filter or inlet tube.
Is shipping also free?
For watches under warranty, shipping to the service centre and back to the customer after repair will also be free of charge. If your watch is not covered by warranty, you will be informed of any shipping fees you need to pay. Note that shipping fees do not cover any applicable import taxes and duties in your country.
What if I’ve lost my warranty card?
Contact the QNET Global Support Centre with your purchase details. They will advise what information is required to verify your watch and any remaining warranty coverage.
