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Troubleshoot your Furnace

There are times when you need an HVAC expert to diagnose an issue with your furnace, but sometimes a little DIY investigating can save you time and money. 

We have been to those calls when a simple change of batteries fixes the system and it is something we would prefer to avoid, and we know you would as well. 

So check these five things first, before contacting and expert. We'll still be here if you need us.

Check These 5 Things Before Calling a Service Company

furnace technician working on heater
  1. Inspect the Thermostat

Most homeowners will go here first when they sense something is wrong with their system. It might seem to simple,  but settings do get changed accidently or by a misprogrammed thermostat. Make sure the system is set to ON. Make sure the thermostat is set to HEAT and that the set temperature is higher than the room temperature being sensed by the thermostat(if you are trying to heat your home). Alos make sure there is not an issue with batteries. Not all thermostats run on batteries, but some do. 

2. Check the Filter

Homeowners know they should be changing filters on a regular basis, but everyone gets busy and its an easy thing to forget. Not all homeowners realize how big of an effect a dirty filter can have on the operation of their system. Clogged filters reduce air flow and this can cause you furnace to overheat. When your furnace overheats safeties cause the furnace to automatically shut off. So check those filters to make sure they are clean and you have good air flow.

3. Reset the Furnace

Modern furnaces get "locked out"  to prevent unsafe operation if they go through the ignition process with out success a set number of times. Unless you are sure of the cause of the lockout you should call an expert. However, sometimes an interuption of the gas supply or an obstruction of the furnace exhaust vent can cause it to lock out. If these problems have been fixed, you can unplug the furnace for 20 seconds to reset it and when you plug it back in it will attempt the ignition sequence again.

4. Check your circuit breakers

Circuit breakers are there for a reason, to protect your equipment and you and your house. So proceed with caution and call an expert if you if you are unsure if you should proceed.  That being said, sometimes a temporary power surge caused by a storm or and electrical grid issue can cause a breaker to trip.  You can flip a breaker back on and if it doesnt trip again you should be fine. If it continues to trip you should contact an expert.

5. Check for Condensate

Some high effeciency furnaces produce condensate that normally drains into a small pipe and then into your plumbing system.  If a condensate drain becomes clogged there are safeties installed to shut off your furnace and prevent damage to your home. Cleaning out a condensate drain is usually an easy fix but call an expert if its something you dont want to tackle.

If after checking these five things you still cant get your furnace to operate fill out the form below or call us at 405-949-5555 to schedule a service call. 

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