Gas continuous flow hot water systems provide hot water on demand, heating water only as it passes through the appliance. With no storage tank, these systems are highly efficient and can provide an endless supply of hot water when correctly sized and maintained.
Like any gas appliance, regular maintenance is recommended to ensure safe operation, maintain peak efficiency and support your manufacturer's warranty.
Homeowner Maintenance – Every 6 Months
Every six months we recommend carrying out a simple visual inspection of your continuous flow hot water system.
Homeowners should:
- Check for water leaks around the unit and pipework.
- Ensure the gas supply is turned on.
- Keep the area around the appliance free from leaves, dirt and debris.
- Ensure the air intake and flue terminal remain unobstructed.
- Inspect visible pipework for corrosion or damage.
- Listen for unusual noises during operation.
- Confirm the unit is producing hot water at the correct temperature.
Why is this important?
Gas continuous flow systems rely on unrestricted airflow and proper gas combustion to operate safely and efficiently.
Blocked vents, debris, water leaks or damaged pipework can reduce performance, increase gas consumption and potentially lead to system faults.
Regular visual inspections help identify problems before they become expensive repairs.
JR 6-Month Gas Continuous Flow Health Check
Recommended Service – $99
Our professional inspection helps ensure your gas continuous flow hot water system continues operating safely and efficiently.
Our technician will:
- Inspect the complete hot water unit.
- Check for water leaks and corrosion.
- Inspect gas pipework and fittings.
- Perform a gas leak test.
- Check burner operation.
- Inspect ignition performance.
- Check heat exchanger condition.
- Inspect the flue and air intake.
- Test water temperature and flow.
- Inspect electrical connections and controller operation (where fitted).
- Check isolation valves and filters.
- Identify components showing signs of wear.
Service Price: $99
Routine inspections help maximise efficiency, reduce operating costs and minimise the likelihood of unexpected breakdowns.
If Your Hot Water System Isn't Working
Before arranging a service, check the following:
- Ensure the gas supply is turned on.
- Check whether other gas appliances in your home are operating.
- Confirm the electrical power is switched on, as most continuous flow systems require electricity for ignition and controls.
- Check the circuit breaker or isolation switch.
- Ensure there is adequate water flow, as the unit will not ignite below its minimum operating flow rate.
- Check the controller for any error codes (where fitted).
- Ensure the air intake and flue terminal are free from obstructions.
- Look for any visible water leaks.
If your system still isn't producing hot water, contact JR Gas & Water for professional diagnosis and repair.
General Signs Your System May Need Attention
Arrange a service if you notice:
- No hot water.
- Fluctuating water temperatures.
- Water not reaching the selected temperature.
- Error codes displayed on the controller.
- Reduced water flow.
- Water leaking from the unit.
- Unusual burner or fan noises.
- Visible corrosion.
- Higher than normal gas consumption.
- Ignition failures or repeated shutdowns.
Early servicing can often prevent costly repairs and keep your hot water system operating reliably.
Protect Your Warranty & Maximise System Life
Routine maintenance helps keep your gas continuous flow hot water system operating safely, efficiently and reliably.
Following the manufacturer's recommended maintenance schedule may also assist in maintaining warranty coverage.
Failure to maintain your system may result in:
- Reduced heating efficiency.
- Increased gas consumption.
- Ignition or burner faults.
- Heat exchanger damage.
- Unexpected loss of hot water.
- Shortened component lifespan.
- Possible reduction or loss of manufacturer warranty, depending on the manufacturer's maintenance requirements.
Preventative maintenance is a cost-effective way to protect your investment, maintain efficient operation and maximise the life of your gas continuous flow hot water system.
Please note: Maintenance requirements vary between manufacturers and models. Always refer to your owner's manual for the maintenance schedule applicable to your gas continuous flow hot water system. JR Gas & Water services all major gas continuous flow hot water brands in accordance with manufacturer recommendations where applicable.
