4 Tips To Help You Troubleshoot Gas Furnace Problems When Your Heating Is Out

1 July 2015
 Categories: , Blog


There are many advantages to using gas furnaces, such as cleaner fuel, fewer repairs, availability of energy and efficiency. Even though your gas furnace may require fewer repairs than oil and other furnaces, it may still require repairs from time to time. Usually, these are things that happen when you least expect them and when you need your heating most. Here are some tips to help you troubleshoot the problems with your gas furnace:

1. Furnace Not Turning On When Heating Is Needed

One common problem with furnaces is the motor not turning on. This can be caused by a power outage, tripped breakers or an overload. First, check to see that the furnace has power and that the breaker and fuses haven't tripped. If it is an overload, wait to try to reset the motor. You may want to turn everything off for an hour or more before you start troubleshooting the problem. This will give the unit time to cool down.

2. Problems With Pilot Light Starting The Furnace

The pilot light not starting can be another problem you may have. If the pilot light will not come on at all, try cleaning it. The pilot light can also come on and go out, and this may be a sign that it is set too low to stay lit. Try adjusting it to have a little more flame. In addition, check all the valves to make sure your furnace is getting gas.

3. System Running With No Heat And A Lot Of Noise

If your system is running and no heat is coming out, the problem can be something as simple as a dirty filter that you need to change. If it is making a lot of noise, there may be a problem with the blower motor. You can try lubricating the motor to see if the noise stops. The motor also has a control switch on it. If the motor still makes noise after lubricating it, try turning the system off and pressing the reset button.

4. Very Little Heat Coming Out Of Vents When Heating Is On

If your furnace is not heating efficiently, try changing the filter and raising the temperature several degrees. You can also check the blower compartment to see if it is dirty and the motor is clogged. If there is a lot of debris in the blower, use a vacuum attachment to get all the loose debris and dust out of the unit.  In addition, check to make sure all the return vents are open to ensure that the air is circulating through the system.

Checking these furnace problems may solve your heating repair needs. If you cannot find the problem with your furnace, contact a heating repair contractor to inspect your system and do the repairs that are needed.