If you rely on your furnace to warm your home when the cold weather sets in, you know how essential it is to ensure the unit runs efficiently. While regular maintenance will play a key role in ensuring that your furnace operates optimally, you still need to know how to spot damage signs. This way, you will be able to seek heating repair service in time before the unit becomes faulty. Here are several signs that your furnace needs to be inspected and repaired by a professional right away.

It isn't easy to start the unit

Are you having trouble starting your furnace? Most people find it difficult to turn on their furnaces or keep them running over the years. So, if you are facing a similar issue, the chances are that your unit needs to be repaired. The functionality problems occur when you have a damaged thermostat, or the unit's wiring might be faulty. Replacing the faulty parts should fix the problem, so don't rush to purchase a new furnace.

You keep hearing unusual noises

Although furnaces make a certain noise when turned on, you shouldn't confuse that with any loud noise you may hear. Persistent and loud noises usually mean that you have a serious issue with your furnace. For instance, you may hear a whistling or squealing noise from the belt. Sometimes the fan may also produce a banging noise. Such noises occur when you have loose or damaged internal components. Therefore, pay attention to unusual noises and call your HVAC specialist to check the unit out.

The furnace is emitting weird smells

Sometimes furnaces do smell like the source of energy they use. This often occurs when they are turned on after months or a year. After all, most people only use the furnace in winter, meaning the unit will be inactive during these months. When the unit is turned on, a certain odour will dissipate for some time. If the smell grows stronger and doesn't disperse in a short while, it could mean that your furnace is faulty. Such odours could occur as a result of gas leaks, or lots of dust might have accumulated in the unit over time.

Get an HVAC specialist to examine the heating system or its plumbing system to confirm the cause of the odours. This way, you will avoid an accident and meet your heating requirements throughout the cold months. They can then perform the necessary heating repairs.