The Rinnai Infinity hot water system has become a popular choice for Wellington households thanks to its energy efficiency, on-demand heating, and space-saving design.
However, like all gas appliances, it requires regular care to ensure optimal performance and longevity. This guide covers everything Wellington homeowners need to know about maintaining their Rinnai Infinity system, from DIY checks to professional servicing recommendations.
Understanding Your Rinnai Infinity Hot Water System
What is Rinnai Infinity and How Does It Work?
The Rinnai Infinity is a continuous flow gas water heating system. Unlike traditional storage cylinders, it heats water only when you need it, offering instant and efficient hot water. The unit activates when a hot tap is turned on and shuts off when the tap is closed, helping reduce energy consumption and ensuring a constant supply.
Why Wellington Homes Choose Rinnai Infinity
Wellington’s mix of older homes, compact properties, and modern apartments makes Rinnai Infinity ideal. Its wall-mounted design saves space, while its performance suits the city’s variable climate. Whether you’re in coastal suburbs like Lyall Bay or hillside areas such as Kelburn, the system handles Wellington’s environmental conditions well.
Key Components That Require Regular Attention
To keep the system running smoothly, pay attention to components such as the water filter, burner assembly, and temperature sensors. External models may also need cleaning around the vent and casing to prevent blockages caused by leaves, dust, or salt exposure in coastal areas.
Routine Maintenance Tasks for Wellington Homeowners
Flushing the System to Prevent Mineral Build-Up
Over time, minerals from Wellington’s water supply can accumulate inside the heat exchanger. Flushing the unit annually helps prevent scaling, improves efficiency, and extends the system’s life. While this task is best left to a licensed technician, homeowners can schedule the service as part of regular maintenance.
Checking the Gas Supply and Ventilation
Ensure that the gas supply is consistent and that ventilation to the unit remains unobstructed. For external installations, check that no objects, plants, or debris are blocking the air intake or exhaust. For internal models, ensure the ventilation system is clear and functioning properly to prevent carbon monoxide risks.
Cleaning or Replacing the Water Filter
The Rinnai Infinity system includes a small mesh filter to trap debris from the incoming water supply. Depending on water quality and usage, this filter may clog over time. Cleaning or replacing it every 12 months helps maintain flow rates and water pressure, especially in areas with older plumbing infrastructure.
Seasonal Considerations for Rinnai Infinity in Wellington
Preparing for Wellington’s Cold and Windy Winters
During winter, pipe insulation becomes crucial, particularly in exposed outdoor units. Insulate pipes with foam sleeves or protective coverings to prevent freezing. Also, check the freeze protection features of your Rinnai Infinity unit and test them ahead of the colder months.
Ensuring Adequate Airflow in Damp or Coastal Areas
Wellington’s damp climate and sea air can encourage corrosion and airflow obstruction. Periodically wipe down the unit’s casing, especially in coastal suburbs such as Seatoun or Island Bay, and clear vents of any debris or corrosion that could limit performance.
Summer Checks for Consistent Water Temperature
While the unit should deliver consistent temperature year-round, warmer months may reveal thermostat fluctuations or sensor issues. If hot water seems too hot or too cold, recalibrate the temperature controller or contact a professional to inspect the sensors.
When to Call a Wellington Rinnai Specialist
Recognising Signs of Performance Issues
Watch for changes in water pressure, inconsistent temperatures, or error codes on the display. These may indicate a blockage, faulty igniter, or sensor issues. Addressing them early can prevent larger system failures and higher repair costs.
The Value of Annual Professional Servicing
Professional servicing ensures internal components are inspected and cleaned, gas pressure is checked, and safety tests are performed. Wellington residents should book an annual service through a Rinnai-accredited technician to ensure the unit stays compliant with New Zealand standards.
Finding Authorised Technicians in Wellington
Look for registered gasfitters certified by the Plumbers, Gasfitters and Drainlayers Board. Many Wellington plumbing companies specialise in Rinnai systems and offer annual servicing packages that include safety inspections and basic part replacements.
Common Problems and How to Troubleshoot Them
Low Water Pressure or Fluctuating Temperature
These issues can often be traced to a blocked water filter, mineral scaling, or external factors like high demand during peak times. First, check the tap aerators and filters. If the problem persists, consult a professional.
Error Codes on the Rinnai Infinity Display
Rinnai Infinity units feature a digital display that shows error codes for diagnostics. Codes such as “11” (no ignition) or “16” (overheat) should be investigated promptly. Refer to the manual or contact a local expert who understands Wellington’s common plumbing challenges.
System Not Igniting or No Hot Water Output
If the unit doesn’t ignite, check the gas meter and power supply. Ensure no circuit breakers have tripped. If power and gas are working correctly, the igniter or sensor may need professional attention.
Prolonging the Life of Your Rinnai Infinity Unit
Using Genuine Parts and Certified Services
Always use genuine Rinnai replacement parts and authorised service providers. This not only protects your investment but also ensures warranty validity and ongoing performance.
Keeping the Unit Clear of Debris and Obstructions
Wellington’s windy climate often blows leaves, dirt, and litter into awkward spaces. Regularly clear around the unit and ensure it remains free of cobwebs, nests, or garden overgrowth.
Recording Maintenance for Warranty Purposes
Keep a maintenance log including service dates, technician names, and parts replaced. This documentation may be needed for warranty claims and also helps when selling your home.
Local Regulations and Safety Standards in Wellington
Compliance with NZ Gasfitting Regulations
All work on gas appliances must be performed by a licensed gasfitter. In Wellington, this is enforced by both national law and local council bylaws. DIY work on gas systems is illegal and dangerous.
Council Requirements for Outdoor Units
If your Rinnai Infinity is installed outdoors, ensure it meets council clearance requirements from windows, eaves, and vents. These rules help protect against gas build-up and ensure safe operation.
Safety Considerations for Shared Property Installations
In apartments or shared buildings, make sure your installation meets body corporate or landlord guidelines. Common issues include ventilation requirements and noise levels affecting other residents.
Final Tips for Rinnai Infinity Maintenance in Wellington
Maintaining your Rinnai Infinity system doesn’t need to be complicated. With a combination of seasonal checks, professional servicing, and good habits, you can ensure consistent performance, lower energy bills, and extended product life. Wellington’s unique climate and infrastructure demand a proactive approach—but with the right care, your Rinnai Infinity will provide years of reliable, efficient hot water.
