Category: Furnace Repair

A loud furnace isn’t just disruptive — it’s often a red flag, indicating a serious problem. Grinding, rattling, and similar noises are commonly associated with worn furnace bearings or belts. Recognizing these sounds and signs early enables you to troubleshoot your noisy furnace and know when to call Express Plumbing for assistance. Common Causes of a Loud Furnace A loud furnace can signal several underlying issues. Worn bearings and belts are among the most common noises that require attention, but other furnace problems may also create abnormal sounds. Worn bearings The blower motor powers the blower fan and circulates air through the system and your home. When the bearings are in good condition, they help the motor run more efficiently and support airflow throughout the system and your home. Worn bearings can cause excessive vibration, which likewise wears on other components and results in excessive and abnormal noise, such as grinding or whining from the motor. Worn bearings typically result from several causes, such as: Insufficient lubrication: Bearings require lubrication to reduce friction — if they become dry, they wear out more quickly. Dirt and debris: Dust and debris can accumulate and lead to grinding or seized bearings.  Old age:

A control board failure is a major furnace problem. It may require replacing the appliance, depending on the unit’s age and the severity of damage. The things to do when your heater won’t turn on won’t help if the furnace control board has gone bad. If it’s not fixed, the entire system can malfunction.  When you have a faulty control board, performance issues, particularly with the fans and burners, can occur. We’ll look at what this component does and when it’s time to repair it or schedule a furnace replacement. Understanding Your Furnace’s Control Board The control board is an electronic circuit board located inside your furnace. There are two common types; these include a simple ignition furnace control board, which is found in older models and controls the igniter, flame sensor, and gas valve (it’s installed alongside the fan control board). It’s less expensive and easier to install than an integrated control board, which, integrates fan and ignition control in modern furnaces and works more efficiently. Where the Control Board Is Located The control board is located inside the furnace’s control panel. You can find it behind the front panel at the bottom of the appliance (check the manual

A furnace ignition problem can cause you to have no heat. Fortunately, furnace ignitors can be repaired or replaced to restore the spark and get your heating system working again. Ignitors aren’t difficult to replace, but your heater and its ignition system are complex. Let’s look at signs of your furnace not igniting, how to troubleshoot the issue, and why you should hire a qualified heating contractor for repairs. Understanding Your Furnace’s Ignition System If you have a combustion furnace, it uses an ignition system to light the burners. These burners produce heat. When your furnace is not heating your home, an ignitor malfunction is a possible cause.  There are different types of ignition systems. Each works a little differently but has the same purpose. The ignitor in your heating unit may be one of the following: Standing Pilot Light: Found only in older furnaces, a standing pilot light remains on while the furnace is running. Its flame ignites the burners, but since it always stays on, it wastes energy. Intermittent Pilot Light: The pilot light turns on only if the burners need to be ignited. When signaled by the thermostat, an electronic ignitor produces a spark that lights the

If your furnace fan is constantly running but your Boise home isn’t as warm as it should be, don’t ignore the problem. You might need the expert furnace technicians at Express Plumbing, Heating, and Air to replace a faulty limit switch.   What Is a Furnace Limit Switch? A limit switch is an essential safety device located in your furnace’s combustion chamber or heat exchanger. If the blower motor isn’t running, it could mean the furnace’s temperature has exceeded a preset limit. When this happens, the limit switch is activated, turning your furnace and blower fan off. If the limit switch turns off your furnace, you’ll need to reset it before it can operate again. There are two reset types: manual reset and automatic reset. The reset button pops out when activated. Depending on your furnace’s age and model, it could be located in a number of places. Often, it’s located inside the air handler, which is usually next to your furnace.  However, if your furnace limit switch is repeatedly activated, it can shut your furnace off completely, and you won’t be unable to reset it. If you experience a limit switch or furnace problem, call the Express Plumbing team and

Homeowners and renters throughout Idaho usually turn their furnaces on at the beginning of fall and use them consistently until late spring or even early summertime. You need a safe furnace that won’t burn through your bank account with costly repairs due to clogged furnace burners.  At Express Plumbing, Heating & Air, we offer furnace repair services that include cleaning and maintaining your furnace burners so you can confidently keep the heat on throughout the winter months.  What Are Furnace Burners and How Do They Work? Furnace burners are mechanisms inside your furnace that produce heat. Every type of furnace (gas, oil, or propane) has at least one burner, but some larger furnaces have two.  When the furnace kicks on, the fuel valve opens, allowing fuel to enter as an air intake valve brings in air from outside. The air and the fuel combine, ignited by the pilot light. A fan blows hot air over the heat exchanger in the furnace and then distributed via ductwork through your home.  Why Do Furnace Burners Get Clogged? Furnace burners can get clogged from a buildup of debris, soot, and dust. This buildup occurs over time, even in the cleanest homes. Clogged furnace