If your hot water system isn’t heating, there could be several causes, from basic issues to those requiring expert help. There are 4 different types of systems here in Australia, Electric Storage, Gas Storage, Gas Instantaneous & Electric Heat Pumps. It’s important to know what unit you have when
following our troubleshooting steps. Below are some common troubleshooting steps you can take before reaching out to SGT Plumbing.
Common Reasons Your Hot Water Isn’t Working
1. Thermostat Setting
Check the thermostat on your water heater to ensure it’s set to your preferred temperature. Sometimes, adjusting this setting is all it takes to resolve the problem.
2. Leaks in the System - All Systems
Inspect the water heater for any leaks, which can affect efficiency. If there’s water leaking from the top or bottom of the tank, it could mean the tank has burst and needs replacement.
3. Power Supply (Electric Systems)
For electric water heaters, check the circuit breaker in your meter box. If it has tripped, the unit won’t receive power, so resetting it may restore functionality.
4. Pilot Light (Gas Systems)
For gas water heaters, ensure the pilot light is on. If it’s out, follow the manufacturer’s instructions to relight it. If it doesn’t stay on, a faulty thermocouple could be the cause and may need replacement by a licensed plumber.
5. Controller Malfunction
Some systems have a controller that regulates temperature and other settings. A malfunctioning controller can prevent hot water from being produced, similar to a thermocouple issue. If you suspect the controller, a professional can assess and replace it if needed.
6. Area Maintenance for Hot Water System Safety and Efficiency
Keeping the area around your hot water system clean and clear is crucial for its safe and efficient operation. Overgrown weeds, grass, and leaf litter around the unit can pose risks, including fire hazards, pest infestations, and potential system damage.
7. Clear Vegetation
Regularly trim back any weeds, grass, or bushes around the unit. Excess vegetation can block airflow, which is essential for the system to run efficiently.
8. Remove Leaf Litter and Debris
Leaves, sticks, and other debris can collect around the base of your hot water system, affecting airflow and attracting pests. Clear away litter to prevent these issues.
9. Keep the Area Dry
Ensure proper drainage around the unit to avoid water pooling, which can lead to rust and damage over time.
Maintaining a tidy area around your hot water system not only improves efficiency but also extends its lifespan and reduces the risk of costly repairs or replacements.
When to Call a Plumber?
If none of these steps solve the issue, it’s likely time for a professional inspection, repair, or replacement. A licensed plumber offers expert assessments of all types of hot water systems and can recommend the best solution, from repairs to full replacements.
FAQ – Common Questions about Hot Water Systems
Q: How often should I check my hot water system?
A: It’s wise to visually inspect it every 6 months and schedule a professional check every 2 years for maintenance and prevention.
Q: My water heater is leaking. Do I need a new one?
A: Not necessarily. Small leaks around fittings may be repairable. However, if water is leaking from the tank itself, replacement is usually necessary.
Q: How can I know if the thermostat is faulty?
A: If the thermostat is correctly set but there’s no hot water, it could be defective. An SGT Plumbing technician can accurately diagnose and fix this issue.
Q: Why does my pilot light keep going out?
A: This could be due to a faulty thermocouple. This part senses heat to keep the pilot light on, and if it’s faulty, the light won’t stay on. A licensed plumber can replace it.
Q: How long do hot water systems last?
A: With proper maintenance, most systems last 10–15 years. Regular checks can help extend your system’s lifespan.
Q: When should I consider a replacement instead of a repair?
A: If your system is more than 10 years old, frequently breaks down, or has costly repairs, replacement may be the better choice. SGT Plumbing can advise you based on your system’s condition.