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COMFORT BLOG

Sep 28, 2017 10:51:22 AM by Sabrina Landry

Common furnace issues and what you can do to fix them yourself!

Owning a home comes with a lot of responsibilities. Heating that home is one of them. We know, you're a strong, independant homeowner, and you can handle it. But for when you run into some snags with your furnace, here are some tips on what might be going on and what you can do to fix it:

Why is my furnace blowing cold air?

First, check to see if your furnace is set to on. If your furnace is constantly running, this may very well be the case. If your thermostat is set to ‘on,’ then air will blow even when it isn’t heating. A thermostat should be set to ‘Auto’ to blow only warm air.

If you find that your furnace is blowing hot and then cold air (with the thermostat set to ‘auto’) then your system could be overheating which is commonly due to the filter needing to be changed. If changing the filter does not correct the issue, you will need to call a technician because over time this problem can cause damage to the heat exchanger which a fairly pricy repair.

If the filters are clean, and the thermostat is set to (say it with me, everyone) ‘auto,’ then your pilot light may be out. If that’s the case, you can relight it. If it won’t stay lit, you may need more oil or gas, or there could be damage to the coupler, which means that although you put in valiant effort, you will need to call a technician for service.

 

Why is my furnace leaking water?

There should never be water around an indoor heating unit, but if there is, don’t panic! A lot of the high efficiency furnaces condensate. The drain line is often a common cause as it can shift and not be pitched forward. This is a good one to start with as it is the simplest to adjust.

If it isn’t the drain line, check the floor drain. Let me know if you’re sensing a theme here. Often dirt and debris can get in the way of the condensation water running out properly.

If it isn’t an issue with drains themselves, could be that your suction line needs insulation, which you can do yourself fairly easily. If you’ve ensured that your drains are in order and your suction line is plenty insulated, it’s time to call a service technician.

Why is my furnace not kicking on?

First and foremost, make sure that your furnace is on, that the thermostat is on, and that the breakers are also on. It probably sounds obvious, but often, the flick of a switch is all it takes to fix this one.

If it isn’t that something needs to be switched on, nearly always the issue is that the filter is clogged. Now, you can fix this yourself, but remember those switches I told you to make sure were on? Turn them off before attempting clean or remove filters. Once they’re cleaned, turn everything back on and see if it’s fixed.

If you have checked the filters and nothing appears blocked and everything is on, it’s best to call a technician to take a look.

Why is my furnace beeping?

If your furnace is beeping, it’s telling you that something is wrong, much like your car does. Chances are if you hear a beeping or see a blinking light, you’re probably experiencing one of the above mentioned issues, like a condensate blockage or a pilot light out.  If you’ve done everything mentioned, you definitely want to call a service technician.

Each of these problems is very common but all of them can be avoided for the most part through regular, scheduled maintenance. Now is the time to have your heat systems fueled, filled, and checked over while the sun is still warm and there’s no real need for heat.

This entry was posted in Heating, Eci Comfort, Comfort Tips, furnace

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