Is Your Gas Ducted Heater Not Working?

* Please remember - heating and cooling units are like your teeth and your car and need servicing every 2 years - The older they are the more they need a service before stopping in middle of the season)*

How To Troubleshoot Basic Issues?

Gas ducted heating (GDH) systems are an efficient, enveloping and reliable way to keep your home warm during the colder months. like any heating system, they can sometimes encounter issues that prevent them from working correctly when you most need them, (Murphy's rules apply!). 

If your gas ducted heating is not working, here are several troubleshooting steps you can take to identify and resolve the problem before calling in a professional. Here’s a detailed guide on how to troubleshoot your gas-ducted heating system.

1. Check the Thermostat - controller on the wall

The thermostat is the control centre of your heating system. If it's not functioning properly, it could be the reason your system isn't working.

  • Ensure it's On: Make sure your thermostat is set to "heat" and not "cool."

  • Set the Temperature: Adjust the thermostat to a higher temperature than the current room temperature to see if the heating kicks in.

  • Check and change the Batteries: Some thermostats are battery-operated. If the batteries are dead, the thermostat won’t work.

  • Inspect the Settings: Ensure that the thermostat settings are correct. Sometimes, a simple change in settings can resolve the issue.

2. Examine the Power Supply

Your gas-ducted heating system needs the power to operate.

  • Circuit Breaker: Check the circuit breaker to ensure it hasn't tripped. If it has, reset it.

  • Power Switch: Ensure that the power switch is plugged in near your furnace and is turned on.

  • Fuses: Inspect any fuses related to the heating system and replace any that are blown.

3. Inspect the Gas Supply

A disrupted gas supply can prevent your heating system from working.

  • Gas Valve: Make sure the gas valve to the furnace is in the open position.

  • Gas Meter: Check your gas meter to see if there are any issues. If you suspect a gas supply problem, contact your gas provider.

4. Look for Pilot Light or Ignition Issues

For older systems with a pilot light, ensure it’s lit. For newer systems, check the electronic ignition.

  • Pilot Light: If the pilot light is out, follow the manufacturer's instructions to relight it. If it won’t stay lit, there might be an issue with the thermocouple.

  • Electronic Ignition: If your system uses an electronic ignition, you might need to reset it or replace the igniter.

5. Check the Air Filters

Clogged air filters can restrict airflow, causing your system to overheat and shut down.

  • Inspect Filters: Look at the air filters and see if they are dirty or clogged and clean as required.

  • Replace Filters: Replace the air filters if they appear dirty. Regular maintenance of air filters is crucial for system efficiency.

6. Examine the Ductwork

Problems in the ductwork can lead to poor heating performance.

  • Leaks or Blockages: Check for any visible signs of leaks or blockages in the ductwork.

  • Open Vents: Ensure all vents are open and unblocked to allow proper airflow.

7. Listen for Unusual Noises

Strange noises can indicate mechanical issues within the system.

  • Identify Noises: Pay attention to any unusual sounds such as banging, clanking, or rattling.

  • Investigate Source: Investigate the source of the noise, as it could point to loose parts or a failing component.

8. Professional Help

If you’ve tried all these troubleshooting steps and your gas-ducted heating system is still not working, it’s time to call in a professional.

At Unitests, we specialise in the servicing, repair, and maintenance of gas-ducted heating systems in Melbourne. Our experienced and certified technicians can diagnose and fix any issues your system may have, ensuring it operates efficiently and safely. Don’t let the cold get the best of you.

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