The system could sense this plus the heating coil would shut off as it knew it could no longer absolutely heat the air well
I am a woman who notices when things change. I am able to truly see when something is not right. I have never been wrong either. I sometimes consider it one of my genuinely special gifts; Other people might not notice it although I sure do, however paying close attention to weekly details is my job. It even came in handy the one time when my heater was acting up. I notice that everytime when my heater is starting up it makes a certain noise. While doing some work I noticed that it had not been making the official noise it had been all of these years. I had never had a problem with it until now. I have heard the heater start up numerous times before. To make sure that I was regular I did call the local Heating, Ventilation and A/C company near to me. If something was wrong it needed to be fixed. The Heating, Ventilation and A/C professional had come right over. She could tell me that the heater was trying to start up however it was not able to fully supply all of the heat it normally had before. The heating coils were having a hard time heating up because there was a bunch of dirt plus dust covering it. The system could sense this plus the heating coil would shut off as it knew it could no longer absolutely heat the air well. The Heating, Ventilation and A/C professional basically cleaned the heating coil plus the heater was not struggling with the heat any longer. I was able to hear the same noises I had always heard in past years.