Issues with Furnaces: Their Root Causes

Keeping your home comfortable in the colder seasons is a top priority. However, if you notice that your furnace is not working, there are several reasons why it may be. Luckily, we can give you some ideas on what to do.

Misaligned Thermostat

The misaligned thermostat can be a severe nuisance, whether it’s your furnace or your heat pump. Thermostats should be located away from windows, outside doors, and heating sources. However, keeping them out of harm’s way is only sometimes possible.

If you need help calibrating a thermostat, call an HVAC professional for furnace repair in Chicago or other places. The thermostat should have a small metal tab in the center of it. This is called an “electrical resistor device” and will tell the thermostat when it’s time to switch on or off the burners.

The thermostat has a few other features, including a flame sensor, a draft inducer fan, and a thermometer. The thermostat’s thermometer should be calibrated to the temperature of the room. This is done to ensure that the fan will operate at the proper temperature.

The thermostat also has a fancy-looking display that will tell you the room’s temperature. If the show is malfunctioning, it may be time to replace the battery. A smart thermostat will even have a low battery symbol.

Malfunctioning Safety Device

Almost every modern furnace comes equipped with a built-in safety device. These devices monitor the flame and blower fan to ensure safe operation. In addition, these devices will automatically shut down the stove if the system is overheated.

If you turn the furnace on, but it doesn’t work, you might have a problem with the limit switch. This switch monitors the stove’s temperature and shuts down the blower and other components if the temperature reaches a certain threshold. It can be repaired or replaced.

Another safety device is the Flame Rollout Sensor. This switch is built into every furnace and monitors the flame in the combustion chamber. The system will shut off the gas valve if the love isn’t detected. If this sensor is dirty, it may prevent the furnace from operating. This can cause a severe fire hazard.

If you hear squeaking or rattling noises from the furnace, this could indicate that the blower is not working correctly. If the stove is short-cycling, this could be a sign of a clogged filter or igniter.

Dirty or Clogged Filters

Dirty or clogged filters can lead to many problems, from malfunctioning furnaces to unhealthy air in your home. Therefore, checking your filter at least once a year and having a professional HVAC service replace it every three months is essential. In addition, a dirty filter will affect your heating system’s performance and efficiency, so you must act fast before it’s too late.

The filter is designed to prevent dirt, dust, and other allergens from entering your furnace and causing a problem. However, when your filter gets dirty, it restricts airflow, leading to short cycling and increased energy use. If your furnace has short cycling, it will run for a shorter time and use more energy than it should, leading to higher bills.

A clogged filter can also lead to the heat exchanger malfunctioning and eventually shutting off. Additionally, it might lead to an overheated furnace. Finally, the high temperature will stress the heat exchanger, which may damage the unit.

Water Coming From The Furnace

Whenever there’s water coming from the furnace, the first thing you should do is turn off the system. This will allow you to take a look at the cause. You should call a technician if you cannot locate the leak’s source.

Water leaks can significantly harm your home and property and be a nuisance. It may also result in the growth of mold and health problems. Therefore, it’s essential to fix the leak as soon as possible.

The most common cause of furnace leaks is condensation. The condensation is created when your furnace starts. The condensate is drained out of your home through pipes. However, if the condensation pipe is clogged, it will not drain correctly. This will lead to leaks and accumulation of water inside the drain pan.

Another common cause of furnace leaks is a clogged air filter. If the filter becomes clogged, it will restrict the airflow. This will eventually lead to a freeze and a leak in the furnace.


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