If your furnace is not working then there are a number of things that you can do before you call a service person to fix it. There are simple fixes that you can do on your own to save yourself a few extra dollars and get your heat back up and running.
Replace The Batteries In The Thermostat
The thermostat is the device that controls the entire furnace and tells it when it needs to kick on and turn up the heat in the house. The thermostat is usually powered by a couple AA size batteries that need to be changed every six to eight months to ensure that the device is getting the proper amount of power that it needs. When the thermostat batteries are depleted, it can send an improper signal to the furnace and throw the entire heating system inside the house off. To replace the batteries, pop the thermostat out and remove the battery cover. Take out the old batteries and dispose of them while abiding by all environmental regulations for batteries. Pop in a fresh brand new set of batteries in place of the old batteries, then put the cover back on and pop the thermostat back into place. Make sure it connects and that it is working properly by increasing the heat and checking to make sure the furnace kicks in.
Clear The Vents Of Any Obstructions
The air vents are what distribute the hot air throughout the house, and they have to be cleaned on a regular basis. Over time, dirt and debris can build up inside the vent covers and block the air from safely passing through to the rest of the house. Take a screwdriver and remove the screws that hold in place all the vent covers. Take a warm wet cloth and wipe down each vent cover and remove the dirt that has built up on the vent. Take a look in each vent and clear any remaining debris that might be obstructing the airflow before you put the vent covers back.
Change The Air Filter
The air filter collects all the dirt and debris that gets sucked inside the furnace and prevents it from getting inside the unit itself. Over time the air filter will get completely blocked and will need to be changed every three to six months. To change it, locate the air filter cover usually sitting right at the base of the unit where the vent connects to the unit itself. Remove the air filter cover and pull out the dirty filter. Insert the new filter in place of the old one, but pay special attention to the arrows on the filter and make sure that they are pointed in the direction of the air flow as it is coming out of the unit and into the air vents. Put the air filter cover back on and secure it in place to complete the installation of the new air filter.
If your furnace doesn't work after following the tips outlined above, call a professional furnace service like Biggerstaff Plumbing Heating & Air to come and diagnose the mechanical issues that are preventing it from working.