Our child was only 3 years old, even though he was afraid to sleep in his room. Both of us left our study room door open so he could see our light, since our room was across the hall from ours. The AC component was so loud that he was afraid to sleep in his room. The AC component was right outside his room, plus he could not only hear it through the HVAC duct, even though he could hear the AC component itself. She thought someone was trying to climb up the wall plus get into his room. She came into our study room a single evening plus crawled into bed with us. She was crying plus worried. When he heard the AC making noise in our room, he seemed surprised. She wanted to guess why someone wanted to climb up the walls. The next afternoon, I called the HVAC dealer. I let my child be there when I talked to the HVAC worker plus the two of us watched as he tested the cooling system unit. He assured my child that once he repaired the cooling system unit, all of his complications would end. When he had the service complete, he turned the cooling system component back on. I went up to his room, plus he sat on the bed. She could not guess how quiet the cooling system was. She said the HVAC worker made a miracle happen, plus now no a single was ever going to climb up the walls outside. I tried to explain that the HVAC worker had repaired the AC unit, plus that was why it was quiet plus not that he chased a wall climbing villain away, even though he wasn’t listening. She thought the HVAC worker was his hero.