Furnaces are the most popular way to heat homes, and have been for more than a century. During those many decades, of course, furnace technology has advanced, and current furnaces are designed for lengthy lifespans, energy-efficient performance, safety, and reduced repair needs.
But no complex machine can ever operate 100% free from malfunctions, and as your furnace ages, it may need to have targeted repairs to keep it running. At Johns Refrigeration, it’s our job to protect your heating system, so that you have a furnace that is always prepared for the occasional cold days. When you notice anything about your furnace that is unusual, or if it starts to lag in performance, call us right away to arrange for the repairs that will get it back on track. Schedule your appointment with our Mesa, AZ heating technicians today.
Here are a few of the more common repairs that a gas furnace may need:
Replacing a Cracked Heat Exchanger
This is a crucial repair, because a cracked heat exchanger can turn hazardous. The heat exchanger is the metal compartment where the hot combustion gas collects and then transfers its heat from the metal walls to the air around it. Cracks in the exchanger, which can occur because of corrosion, may allow carbon monoxide to escape from the furnace. If you hear odd clicking noises from your furnace, it might be due to a cracked heat exchanger, so have a repair technician look into the issue right away.
Cleaning the Burner
The burner is the place where the gas jets turn on to create combustion gas. The pilot light/electronic igniter turns on the burner whenever the thermostat signals that the house needs heat. However, if dirt and grime cover the burner, it won’t be able to draw sufficient oxygen to allow the burners to activate. To clean it, HVAC technicians must first remove the burner itself. They will also look for rust flakes inside the burner that might result in low gas flow.
Replacing a Failed Electronic Igniter
Modern gas furnaces often use an electronic ignition system rather than a standing pilot light because it makes them more energy efficient. However, just as pilot lights can go out, an electronic igniter can fail, and the burner will not ignite when the thermostat signals for the furnace to come on. A repair technician will replace the failed igniter with a new one.
It is very important that you call for repairs for your furnace as soon as you detect something is wrong: gas furnaces are much safer than they once were, but they must have prompt repairs to remain that way. Also make sure that you sign up for regular maintenance in the fall to have your furnace inspected and tuned-up; this will catch any potential repair issues before they become actual issues.
Please contact Johns Refrigeration when you need repairs or maintenance for your furnace. We have helped homeowners stay comfortable since 1970.