I tried to do everything I could to help my furnace when it began running inefficiently.
I started noticing how often the furnace was running and how difficult it was to heat my cabin evenly, and before calling an Heating and Air Conditioning professional, I tried replacing the air filter to see if that would help.
The ancient air filter was covered in dust and debri, so I felt confident that the clean air filter I was replacing it with would do the trick. However, even though the clean air filter legitimately helped a little, I didn’t notice a significant change in the frequency my furnace was running! Next, I checked the outside unit to see if there were any branches or tall lawn covering it. I cleared a few sticks and trimmed the bushes back, even though I still didn’t notice a difference in my furnace efficiency. I broke down and hired an Heating and Air Conditioning professional because I knew I’d done what I could to get my furnace running normally again. The Heating and Air Conditioning professional was kind and considerate and he was honestly impressed with me for replacing the air filter and clearing the outside unit, and unluckyly, the real issue was the fan limit switch. The switch was faulty and the thermostat wiring was tangled. I was upset about the cost to repair the limit switch, but the Heating and Air Conditioning professional said it was legitimately incostly. I’m glad I did what I could before calling an Heating and Air Conditioning professional, and I’m glad the situation wasn’t worse than it was.