Guide: Hot Water Troubleshooting

Your guide to the most common water heater problems and solutions.

If you’re facing issues with your hot water system, you’re not alone. Like any complex system, they can occasionally run into problems. Whether you’re a homeowner trying to troubleshoot a problem or a plumber assisting a customer, understanding how to diagnose and resolve common issues can save time and stress.

In this guide, we’ll walk you through some of the most frequent issues with hot water systems and provide clear troubleshooting steps. 

1. No Hot Water

One of the most common issues with any hot water system is simply no hot water. If you’re experiencing this, there are a few first steps to take before calling a plumber.

What to check first:

• Power Supply: Ensure that the system is plugged in and receiving power. If your system is solar-powered, check that the electrical supply is on and there is no tripped circuit breaker.
• Controller Settings: If the controller is faulty or improperly set, it can prevent the system from heating water. Check the manual for your specific model to ensure settings are correct (see the popular Apricus Hot Water System Manuals here).
• Solar Systems: For solar-powered hot water systems, it’s crucial to contact a licensed plumber or technician for further diagnosis. Unlike electric systems, solar hot water systems are more complex and require professional attention if there’s a failure.

2. Faulty Controller

Hot water systems have evolved over the years, and with that, the controllers have undergone several upgrades. At NCP+W our team can help diagnose a controller issue in minutes. With expert knowledge of the different controllers, you can simply send us a picture or describe your controller and we’ll have the advice at the ready.

What to check next:

• Controller Display/Indicator Lights: Check for any error codes or flashing signals. Refer to the manual for your specific controller model to identify what these signals mean.
• Reset the Controller: Sometimes, a simple reset can resolve issues. Unplug the controller for 30 seconds, then plug it back in to see if the system restarts.
• Battery Issues: For systems with older controllers, battery failure could prevent the system from operating. If you suspect the battery is dead, consult a plumber or technician for replacement.
  

If troubleshooting doesn’t resolve the issue, it may be time to replace the controller. NCPW can assist with this process, providing the correct parts and offering advice on installation.

3. Leaking or Dripping Water

Leaks are another common issue in hot water systems. Both solar and electric hot water systems have a variety of components that can potentially leak if not maintained properly.

What to check:

• Tank Leaks: A leak in the storage tank can occur due to corrosion, damage, or a manufacturing defect. If the tank is leaking, it’s essential to have it inspected and replaced by a professional plumber.
• Connections and Hoses: Check all pipe connections, especially around the controller, tank, and solar collector. Loose fittings can lead to small drips, which, over time, can escalate into more significant leaks.
• Pressure Relief Valve: If the pressure relief valve is leaking, it could indicate an issue with the system’s water pressure or temperature settings. This is something a licensed plumber should inspect and repair.

4. Poor Water Temperature or Inconsistent Hot Water

If your hot water system is providing lukewarm or inconsistent hot water, there could be several factors at play.

What to check:

• Solar Collector Performance: If you have a solar-powered system, low water temperatures can often be traced back to poor solar collector performance. This can happen if the collectors aren’t receiving enough sunlight. Cleaning the collectors can help ensure there are no obstructions blocking sunlight.
• Thermostat Setting: Check the thermostat settings on the system. If the temperature is set too low, the system may not be heating the water sufficiently.
• Thermal Transfer Issues: Problems with the thermal transfer between the solar collectors and the storage tank can lead to poor water heating. This issue may require professional attention to ensure that all connections are functioning correctly.

5. Heat Pump Systems: Quality, Rebates, and Considerations

Heat pump water heaters are becoming increasingly popular, especially for their energy efficiency and lower running costs. However, not all heat pump systems are created equal, and some systems on the market can be misleading or of poor quality.

Rebates and Incentives:
In Australia, government rebates are available for heat pump systems, helping to reduce upfront costs. However, it’s important to note that some cheaper systems marketed as “free” or low-cost often result in poor performance, higher maintenance costs, and a reduced lifespan. Always consider the quality of the system you’re purchasing. Opting for a reliable and well-reviewed system like Apricus ensures long-term performance and savings.

NCPW’s Role:
NCPW can assist you in selecting the best heat pump system for your needs, as well as helping you apply for rebates. Our experienced team can guide you through the process and help you avoid pitfalls associated with subpar, low-cost systems.

Choosing Quality Systems:
Choosing a high-quality system from reputable manufacturers like Apricus or Reclaim Energy is crucial. Low-quality heat pump systems may seem like a bargain, but they often end up being a poor investment in the long run. At NCPW, we work exclusively with reliable, high-performance systems, ensuring that your investment in a hot water solution pays off for years to come.

In summary,

Troubleshooting hot water issues can seem daunting, but with the right advice and support, many problems can be resolved quickly. Whether you’re dealing with no hot water, a faulty controller, or leaks, it’s essential to take the right steps and call a licensed plumber if needed.

At North Coast Power + Water, we’re here to help homeowners and trade professionals navigate these challenges. Our experienced team offers phone consultations, expert troubleshooting, and access to high-quality products and solutions to keep your hot water system running smoothly.

If you need advice or assistance with your hot water system, get in contact or give us a call on 02 6651 4333, and we’ll guide you through the next steps. We can also help source a reliable and trustworthy plumber from our local network of preferred contractors if an onsite visit is needed.