During the winter season and beyond, it is important to ascertain that a furnace is working efficiently and is in good shape. Problems associated with the furnace should be acknowledged and taken care of as soon as possible to prevent them from worsening and turning into future emergencies. Furnace problems can be detected and resolved by watching for these five warning signals that the furnace needs maintenance. In most cases, the signs point to issues which are minor when caught on early. With maintenance, it is possible to avoid the expensive cost of repairs which occur if the warning signs are ignored.

How do You Know When Your Furnace Needs to be Repaired?

1. Noisy Operation of the Furnace

If it is noticed by an owner that the furnace produces a lot of noise during operation, it could be a pointer that the furnace is likely to possess one or more of a host of problems. These could include clogged furnace air filters, loose belts or compromised ducts. Fortunately, many of these issues are minor but can become very serious if not resolved in due time. If an owner notices a loud bang that occurs whenever the furnace starts, the maintenance team should be called immediately as it signals an ignition issue or a gas leak.

2. Yellow or Orange Furnace Flames

Typically, a furnace’s flames should be blue. If upon observation of the furnace, the flames are either yellow or orange, it means there is an inappropriate mix of gas and oxygen, signaling a dirty burner. This should be easy to fix, as long as the burner gets cleaned soon afterwards. If the problem is left unattended to for a longer period of time, there could be a carbon monoxide leak which is lethal.

3. Increased Energy Bills

Once the fuel efficiency of the furnace is noticed to have reduced, it is a signal that the furnace needs to be maintained- cleaned thoroughly in the best-case scenario or that the furnace is near the end of its lifespan. If this problem is left unresolved, the furnace might end up needing to be replaced at a much closer time than was anticipated.

4. Consistent Switching On and Off

If a furnace is noticed to be short cycling, it is a signal that it needs to be checked. The cause could be that a thermostat is out of calibration or was incorrectly set, or it could be that there a dirty filter in the furnace that needs to be replaced.

5. No Heat

If the furnace is observed to not produce any heat, it may be time to get a professional maintenance team to come to the rescue for a furnace repair or even a furnace replacement. This should be done after ensuring that the circuit breakers that power the furnace are fully functional.