How to Troubleshoot Furnace Repair

If you have furnace problems, you may want to consider hiring a furnace repair company. Before choosing a company, think about the things that are important to you in a furnace repair company. Asking others for recommendations is an excellent idea, as well. Ask for references and read about other people’s experiences with different furnace repair companies.

Problems with the blower

If you notice a banging sound coming from the blower during operation, the blower motor may have a problem. If the noise is persistent or loud, the blower motor may need to be replaced. However, if the noise is minor, the problem may be as simple as tightening the motor mounts. If you aren’t comfortable trying to diagnose the problem yourself, you can call a professional HVAC technician to check the motor for issues.

A broken blower motor can be the cause of your furnace not heating or cooling. In such a situation, you may need to replace the blower motor or thermostat. However, Furnace Repair replacing or repairing the blower motor is an expensive option.

Problems with the thermostat

One of the most common furnace problems is a malfunctioning thermostat. A malfunctioning thermostat will not monitor the temperature accurately or instruct the furnace to turn on or off. You can easily remedy this problem by replacing the battery. It’s best to use AA batteries for your thermostat rather than alkaline batteries, as alkaline batteries drain quickly and cause malfunctions in heating systems. Additionally, if you don’t regularly clean your thermostat, it can cause the furnace to struggle to achieve the temperature set on it.

Another problem with your furnace thermostat is a faulty wiring. If the wiring is improper, it will affect the HVAC system and prevent the furnace from producing warm air. Therefore, it’s important to check your wiring before you decide to replace the thermostat. If you suspect that the wiring is the problem, you should consult a professional for assistance.

Problems with the flame sensor

A faulty flame sensor can cause a number of problems with your furnace. These issues can include yellow burner flames, water leaks, high utility bills, and constant thermostat adjustments. Troubleshooting the flame sensor can help you avoid a lot of potential problems. Here are some tips to troubleshoot this furnace component.

First, turn off the power to the furnace. You can remove the flame sensor with a wrench or screwdriver. Then, check the flame sensor with a multimeter. If the flame sensor is not showing any resistance, the sensor needs to be replaced.

Problems with the fan limit switch

If your furnace’s fan stops working, you can often diagnose the problem by replacing the fan limit switch. These switches are usually sold online. Make sure to check the specifications before purchasing one. They should include a description of the temperature range they’re good for and how long they protrude from the back of the furnace. Make sure you buy the same type of switch as your current one, as this will prevent you from replacing the wrong part and damaging your furnace.

One of the first signs of a malfunctioning limit switch is when voltage drops to less than 0.2 VDC. In many cases, this voltage loss is caused by rusted or broken contacts on the switch. If this happens, you should immediately replace the switch to prevent more damage to your furnace.