Furnace Warning Signs You Shouldn’t Ignore

You should never ignore any changes in your heating system as it’s an indication that something is wrong. To prevent a total breakdown and emergency no-heat service, make sure you’re not ignoring these common furnace warning signs.

Reduced Airflow or Uneven heating

An overlooked furnace warning sign is a change in your overall home comfort. If you have to turn up the temperature to keep warm or notice certain parts of your home have cold spots—it’s likely that there could be a problem with the furnace’s blower motor or it’s short-cycling. Ignoring the problem could lead to a complete heating system breakdown and even require complete replacement.

New Smells

There shouldn’t be any odours coming from your furnace or blowing through ducts when using the heating system. If you notice that there’s a new smell when the furnace turns on, it’s an indication something is wrong with the system.

Burning/Electrical – Parts in the furnace can wear down to the point they produce a strong smell. It could indicate a problem with the motor or wiring in the heating system, so it’s best to call for professional heating service as soon as possible.

Musty/Mildew – Moisture can build up in certain parts of the furnace or even the ductwork, causing mould to grow. When the furnace turns on, a musty or mildew smell can be distributed throughout the home. Since mould can be dangerous, it’s important you don’t ignore this furnace warning sign and contact a professional to investigate the matter.

If you smell rotten eggs, evacuate your home immediately and call emergency services. The smell of rotten eggs—or sulphur—is a strong indication there’s a natural gas leak, which can have catastrophic effects.

Noticeable Change in Heating Bill

Many times, when there’s a furnace problem, the system will have to work harder to maintain temperature. While you might not notice any physical changes in the home as a result, you’ll likely see an increase in your heating bill because the furnace is not as efficient as it once was. It’s worth keeping an eye on your energy bill and taking note of any increase that can’t be explained. If you think your furnace is costing more to run than it should, it’s worth contacting a professional to perform a diagnostic furnace service.

If you have any questions about your heating system
or want to schedule a furnace service,
don’t hesitate to contact us.

Harding Heating & Air Conditioning is Ottawa regions furnace experts. We have the knowledge and experience to help with furnace installation, furnace repair and furnace service.

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