Goodman Furnace Maintenance
Goodman furnaces are known for their efficiency and durability. Even though these units are also built to last, proper care is still important. If you want to make sure your HVAC system stays dependable, this Goodman furnace maintenance guide explains what you can do to make sure your heating system stays in good working order when you need it the most.
This information is for gas furnaces such as the GMP100-3 and GMP100-4. For more tips on keeping your machine in good working order, see our Goodman furnace troubleshooting article. Any testing or repairs outlined in this guide will need to be completed by an authorized technician.
Cleaning
Be sure to routinely perform the following steps to keep your unit, important components and the surrounding area clean.
- Step 1. Clear away any large items and combustibles, such as laundry or cleaning chemicals, from around the furnace and air intakes.
- Step 2. Dust the furnace and duct exteriors with a cloth or duster.
- Step 3. Vacuum around the base of the furnace and the air intakes.
- Step 4. Check the duct work for any dents, holes and other damages. Be sure to note what you see so it can be repaired by a service technician.
Change the Filter(s)
When it comes to preventative maintenance, changing your furnace’s filter regularly is one of the most important things you can do. So, be sure to replace your furnace filter and/or your HVAC system’s return air filter on a regular basis to maintain air quality and maximize energy efficiency.
Schedule an Inspection
Besides simple things that you can do as a homeowner, be sure to also schedule a routine maintenance inspection at least once a year with an authorized technician. The licensed technician should inspect critical components within the gas furnace, such as the:
- Heat Exchanger - The heat exchanger shouldn’t have any cracks or damage; if it does, it won’t heat air as efficiently, if at all. Furthermore, cracks may lead to carbon monoxide leaks that can be dangerous to you and your family.
- Blower Motor and Wheel - The motor should have proper electrical current and the wheel shouldn’t vibrate excessively when in operation. Both the motor and wheel should be free of dust and debris, too.
- Flame Sensor - The licensed technician should check the flame sensor with a multimeter to make sure it’s functioning properly. If it appears dirty, it should be cleaned so that the ignition system can function properly.
- Flue Vent - The authorized technician should inspect the flue vent for any damage or corrosion, as well as any blockages. These blockages need to be removed since they can trap gasses like carbon monoxide in your home and increase the risk of fire.
- Wiring and Cables - Improper wiring can lead to inefficient or even dangerous operation. So, make sure the licensed technician inspects the wiring and cables to confirm that everything is connected properly.
- Drain Lines - Cleaning the drain lines prevents blockages that can cause floods near your furnace. When the authorized technician is conducting the routine maintenance inspection, be sure that he or she checks the drain lines and removes any obstructions.
Remember the Insulation
While not part of your HVAC system, good home insulation will help your furnace heat your home as easily and efficiently as possible. If you notice a draft coming into your home even though all the windows and doors are closed, check the insulation: the weather stripping or some other form of insulation may be damaged and need to be replaced.
For more information on how to use, operate or maintain your unit, be sure to take a look at the extensive collection of Goodman manuals and diagrams on our site.