When your furnace stops working, you might want to fix it yourself before calling an HVAC contractor in Riviera Beach. Here’s a simple guide to help you troubleshoot common issues.
These tips apply to both regular and high-efficiency gas furnaces, whether they use natural gas or propane. This guide isn’t for electric furnaces or heat pumps, which are different.
Annual Checks
To avoid costly heating problems, it’s smart to have your system inspected every year. Trying repairs yourself might void the warranty, so calling a professional first can be a good idea. However, if you’re careful and follow instructions, you could save money and learn something new by doing the repairs yourself.
Using a Multimeter
A $25 multimeter can help you troubleshoot your furnace. You can check if parts like the thermostat, breaker, blower motor, limit switch, fuse, shut-off switches, flame sensor, and igniter are getting power. This will tell you if any parts need to be replaced.
Safety First
If you smell gas, leave the house right away, leave the door open, turn off the gas at the meter, and call your utility company.
Common Furnace Issues
Thermostat Not Set to Heat
Make sure your thermostat is set to heat. Try turning up the temperature a few degrees and wait a few minutes to see if it turns on.
Thermostat Battery Dead
Check if the display is dim, off, or if the time/date is wrong. This could mean the battery is low. Replace the battery and clean the contacts with a cotton swab and alcohol if they are dirty or corroded.
Thermostat Wiring Dirty or Corroded
Open the thermostat and check for dirt or corrosion on the wiring. Clean it if needed.
Thermostat Programmed Incorrectly
Try setting the temperature manually and pressing the hold button to see if the furnace turns on. Check the manual for programming instructions.
Thermostat Malfunction
If your thermostat isn’t working, it might need to be replaced. This is usually easy to do yourself. Watch a video guide to help you.
Thermostat Located Incorrectly
A thermostat placed in direct sunlight or near heat sources can give wrong readings. This means your furnace might not turn on or off when needed. You might need a pro to move it to a better spot.
By following these tips, you can handle many furnace issues on your own. But remember, for complex problems or if you’re unsure, it’s always best to call an HVAC Contractor in Riviera Beach for help.