Is your furnace giving you trouble? If so, don’t worry – you’re not alone. Furnaces can be tricky things, and sometimes they require a bit of furnance troubleshooting to get them working properly again.
In this blog post, we’ll discuss some of the most common furnace problems and how to fix them. We’ll also talk about when it might be time to replace your furnace altogether. So if your furnace is acting up, read on for some help!
Landmark Air Canberra offers excellent gas and ducted heating services. We are your one-stop-shop for all things related to heating, cooling and gas. Give us a call today!
Furnace Troubleshooting: A Guide to Common Problems
Using this troubleshooting guide, you will learn more about what might go wrong with your furnace, how to fix it on your own, and when to call a specialist.
We’ll start with some easy options and work our way up to the more involved ones.
If the blower fan is functioning and the furnace is on, but no heat is emanating from the registers, the airflow may cause blockage.
- Check the furnace filter after it has been turned off.
- Located adjacent to the cold air return duct, the air filter is easily accessible. Filter replacement is necessary every three to six months because dust builds up in the filter and restricts airflow.
- If changing the filter doesn’t solve the problem, a professional check may be necessary to see if something else is blocking the Ducks.
If your furnace isn’t working, it’s best to start with the most basic fixes.
Check the batteries in your thermostat, if required, and replace them if they aren’t working. If everything is working, you may now turn the thermostat up to heat and the fan on.
- The breaker box is the next place to look. To restore power to the furnace in the event of a tripped breaker, turn the switch off and then back on again.
- The furnace’s power switch may be found on the side, so check whether it’s on. Once you’ve located it, turn it off.
- It should be accessible. Check to make sure that the blower cover is closed completely since many furnaces include a safety mechanism that prohibits them from running if they are open.
Safety switches are now standard on most modern furnaces, allowing them to be shut off if the system is damaged. The furnace will shut out if a switch is tripped.
The furnace will go into a hard lockout for up to an hour if it can’t get the ignition to work. The furnace will employ flashing lights to indicate the cause of a lockout every time. Check your furnace’s handbook to determine what each of these codes indicates.
Repairing Your Furnace
If you’re going to attempt furnace repair, be aware of your limitations and only make attempts that you know are safe.
Turn on the thermostat and watch the startup routine to see if your furnace has electricity.
The draft inducer fan first heats the heat exchanger. As a result, 100% of the exhaust gasses are expelled from the combustion process.
Stagnant or burned-out motors are possible outcomes when the inducer stops working. Additionally, damaged connections or a malfunctioning control board might be to blame.
The pressure switch will close if the inducer is functioning and there is enough airflow to remove the exhaust gasses.
Switches will stay open if the pressure is low, preventing the furnace from igniting. Try to figure out what could be causing the heat exchanger’s pressure to vary.
Check whether the flu vent or the inducer motor port is blocked. Next, inspect the pressure switch tube to determine any obstructions.
The flame rollout switch may be malfunctioning if there is no trace of a flame rollout.
Use a continuity tester to ensure that the switch is working. Replace the flame rollout switch if there is no continuity. A professional should be contacted if there is continuity and the flame still does not remain lit.
Contact Us
If you’re still having trouble with your furnace or just don’t feel comfortable attempting repairs on your own, don’t hesitate to call Landmark Air Canberra . We’ll be happy to help!
Call us at (02) 6189 2972 or schedule an appointment online. We’re here to help!
