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Peatson's Heating and Air Conditioning Ltd. Blog

The Case of the Mysteriously Malfunctioning Furnace


Before we call Nancy Drew or Encyclopedia Brown, we should probably contact someone more qualified to diagnose problems with a furnace, right? After all, teen detectives might be better at unmasking a villain, but in no circumstance should they be working on a gas furnace that’s having pilot light problems!

It’s not as groovy of a name, but you can think of the team here at Peatson’s like the brilliant teen detectives of these mystery novels, except that we’re a good amount older and a lot more experienced when it comes to repairing your mysteriously malfunctioning furnace.

However, just like the beginning of every mystery, the detectives aren’t always there at the scene of the crime. That’s where you come in! If you’re looking to see when you’re in dire need of furnace repair in Caledon, ON—you’re going to have to be the detective until you can call a professional technician to be on the case. So, let’s follow the clues!

4 Major Clues

Pull out those magnifying glasses and cup your ears, it’s time to take a good hard look at your furnace to recognize these four serious concerns that could signal a need for furnace repair!


An older furnace is always going to have more problems than a newer one, that’s a fact. If you’ve been dealing with obnoxious noises and smells coming from a furnace that’s nearing the age of 30, by process of elimination you can probably surmise that your heater is beginning to suffer from old age.

Pilot Light Issues

A detective with a sharp eye might notice some clues in their furnace’s pilot light! The pilot light is central to the function of your gas furnace and could be showing you directly that the system needs repairs. If the flame is flickering or is burning a bright yellow or orange, these can be major problems with your heat. A yellow or orange pilot light signifies too much oxygen being in your system, sometimes giving you a clue that there’s a gas leak. When neglected, a pilot light issue can be a major sign of a safety hazard.

Cold Air Coming from Your Furnace

A troubled furnace is going to do more harm than good, which can be easily seen from homeowners that get cold air blown into their home. If you’re trying to stay warm and cozy during the wintertime, the last thing you want is your furnace blowing cold air right in your face! Whether it’s a blower fan malfunction or a specific set of cold spots that are the culprits, you’re going to need a professional technician to really get to the bottom of it.

Heightened Heating Bills

For any math wizards out there, your heating bills can be a huge clue that points towards furnace problems. If you compare your monthly heating bills to your bills last year and the year before that, you might notice a trend of steadily rising costs! This isn’t just natural, it could be a sign that your system is beginning to run less efficiently.

Don’t neglect your furnace, it’s time to take a good hard look at your mysteriously malfunctioning heater!

Need help with your malfunctioning furnace? Contact our professional team at Peatson’s Heating and Air Conditioning Ltd.

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