It is very embarrassing to having to switch on your heating system when it goes silent. If you do not have enough information, you might spend a lot of time and money trying to fix a simple problem that would have rather been fixed in a matter of minutes. What can cause a furnace to stop working? We’ll find out.
So what we should know is probably the main reason why a thermostat can stop working and always try to check each of the causes if you can before resorting to calling in an expert. Now the heating system is always made up of a number of components that are linked up to work as one unit.
So it is important to know the most vital parts of the system that you need to check on first in case it stops working. Now, what can cause a furnace to stop working? Let’s find out.
Is it Possible to Make a DIY Furnace Fix?
A furnace that’s not working can really be a big problem and it might have you do a lot of things before you fix it. However, it is very possible to have a DIY fix on your malfunctioning furnace. It takes some little know-how on where to touch when the furnace has some signs of not working.
That is why you have to know the possibilities according to the problem you are experiencing. Sometimes, however, when the problem is too huge, DIY fixing might become a huge issue and you might end up calling in an expert to do the fixing.
Now for you to try making a DIY fix or to understand what reason might be causing the furnace to stop working, we will need to know the possible issues that can cause this.
Possible Problems That Makes a Furnace to Stop Working
Now, we have a number of issues that can cause a furnace to stop working ranging from the thermostat to the air filter and the electric system. Understanding how any of them might be a problem is an important thing. The following are the main problems that can cause a furnace to stop working.
A tripped or flipped circuit breaker
If the circuit breaker trips, the flow of power to the furnace will obviously be cut off. A flipped circuit breaker can also do the same and can cut off power to the vital components of the heating system.
This can make the furnace stop working completely. Now if the power does not come on, you will need to reset the circuit breaker back to on. However, sometimes even after resetting the circuit breaker to on, the furnace might still not work at all.
You will need to have it checked keenly by an expert. Sometimes it would start for some time but eventually, go off. Here you also need a technician to look into the issue too.
The thermostat controls the whole system by dictating an increase or decrease of the activity to either increase the heat or reducing the heat, to regulate the cycle. Now when the thermostat is not turned on, the whole system can be compromised and the furnace will not start as a result.
To fix this, you will need to check if the thermostat is set to heat mode and the temperature set to a few degrees above the room temperature to initiate the heat cycle. Now depending on what your thermostat runs on, you might want to check the connection or maybe replace the batteries if it is battery powered. If the problem persists you might still want to ca in an expert to fix it.
The air filter
When the air system is clogged, there is usually not enough air supply to the furnace. The system then tends to accumulate the heat generated. As the heat accumulates, the furnace is overworked and eventually, the system will shut down automatically until there is fresh air supply again.
To solve this problem, you might need to entirely replace the air filters. After reaching them you should then give allowance for the system to cool down before you can start it up again. Sometimes clearing off the debris from the air filter might come a long way in fixing the bigger problem.
A clogged furnace
For the furnace to work properly, it usually needs to be clean at all times to allow the air to flow freely through it. So when it comes to a point when the air filter becomes clogged, you might need to have it cleaned before the airflow can be regained.
Without a constant airflow, the furnace cannot work. Eventually, the heat being generated builds up to a maximum making it unable to work anymore which is potential damage to the system.
The heat exchanger
When the furnace had been used over a long time, the heat exchanger is bound to wear out over time. It becomes inefficient due to rusting or cracks which make it impossible to exchange heat between the surrounding and the furnace.
Cracks or any damages to the heat exchanger can make your heating system have a potential malfunction which might lead to a buildup of dangerous gases in the house. For electric furnaces, the malfunction comes as a result of the build-up of heat inside the furnace which makes it hard for any further generation of heat.
The limit switch
The main function of the limit switch is to regulate the heat that is being produced to make sure it is safe using the device and overheating cannot happen. Therefore when the limit switch is not functioning properly, it can make the furnace not work at all. That is why you should be keen to check the limit switch when there is a problem with the furnace.
What Can Cause a Furnace to Stop Working – Conclusion
Anything can be a problem around a heating system. We might end up not knowing what really happened if we got no clue about the systems involved in making this happen. That is particularly why it is important to know the possible causes and try to address them if you can
There are so many features in a furnace and any of them is faulty, it might be part of what can cause a furnace to stop working. Sometimes, however, the problem becomes gross and that necessitates a technician to be involved. Either way, the problem has to be fixed for us to be sure the furnace can get back to working normally.