What’s worse than switching on your ducted heating system on a crisp morning only to find it not working as it should? It blows cold air, makes noises and breaks down frequently. There is no need to panic; a ducted system has simple issues you can identify. The bad news is that some issues require assistance from a licensed technician. In that case, Surrey Air is your go-to heating service partner.
This blog post will walk you through the most common reasons your ducted heating is not working, how to fix them at home, and when to call your HVAC expert.
Here Are 5 Common Reasons Ducted Heating Is Not Working
1. The Thermostat Has Incorrect Settings
Either your thermostat is set incorrectly or has dead batteries. These are obvious but common reasons your ducted system has stopped working. It’s easily fixable.
It sounds obvious, but this is one of the most common reasons ducted heating stops working — and the easiest to fix. Ensure your thermostat is in Heat mode. Make sure to set the temperature higher than the room temperature. Try replacing the batteries if your thermostat display looks dim or doesn’t respond. In the case of a smart thermostat, ensure that it is not scheduled to turn the heating off. The fix is easy and quick; you won’t have to call a tech to check.
2. A Tripped Circuit Breaker or Blown Fuse
Ducted heating systems are powered by electricity, even if they are a gas unit. They require electricity to power the fan and ignite the gas. If a breaker trips, the entire ducted system stops functioning. To reset the breaker, switch it off and then back on. If the breaker trips again, you should call an HVAC service company or an electrician right away. There may be a problem with the wiring or a short circuit.
Can you fix the problem yourself? Yes, you can reset the breaker by yourself. If the breaker keeps tripping, you should call a professional to resolve the issue.
3. Clogged or Dirty Air Filters
A clogged air filter is one of the common reasons for breakdowns, overheating, and poor airflow. Most ducted heating systems feature a built-in switch that turns the system off if it overheats, and a dirty air filter is usually the culprit.
Remove the air filter from the air grille and clean it if it is clogged with dust particles. You may also need to replace it whenever necessary. We always recommend cleaning air filters every three months because dirty air filters can restrict airflow. While removing and cleaning air filters is not complex, and you can always do it at home, you may still call Surrey Air to do it.
4. Strange Noises and Smells
Banging, rattling, and crackling noises coming from your system mean something is wrong. Similarly, a strange smell from your ducted heater is a telltale sign of a serious problem. Noises are often due to loose components or debris in the ductwork. However, a strange smell coming from your system could be a gas leak. If you smell gas, leave the house immediately and call Surrey Air for help. Take these signs seriously because fixing these issues requires professional assistance.
5. Failed Pilot Light
If your modern gas ducted heater is not producing heat while running, there might be an issue with the pilot light or electronic ignition. For older systems with a standing pilot light, ensure the flame is lit — if it’s not, relight it carefully by following your manufacturer’s instructions. On modern systems with electronic ignition, listen for a clicking sound when the heater starts up; if there’s no click, the ignition component has likely failed and will need a professional’s attention. Also, check that your gas supply is turned on. A homeowner can carefully relight a pilot light. However, any repairs to ignition components require licensed technicians with experience handling gas ducted heaters.
Final Thoughts
An unresponsive ducted heating system is truly frustrating in cold weather. Many of the issues are easily fixable at home, while others require a call to a professional.
Regular servicing is one of the best ways to catch issues in their early stages. A well-maintained system has good airflow and efficient performance. Surrey Air offers reliable fixes and comprehensive servicing plans. Give us a call for a detailed discussion.
