It happened the first night after the first night I spent the night over at his venue, then the HVAC unit broke down while we were having our morning coffee.
The two of us were up at the crack of dawn because we each had our works to go to, and while we were having coffee, we heard the HVAC idea croak and then stopped, a few moments later, we both commented on the decreased indoor comfort, and when our bestie checked the whole system, he noticed it had gone off.
The control unit was still working, though. He said he would get around to fixing it since he worked as an HVAC professional at his HVAC business. He was scheduled to travel to the capital later that morning to attend a conference about the new HVAC technology launched a few mornings before; however, I knew with the trip, and a scheduled couple of mornings ahead of him, he would not be able to run HVAC repair on the unit, but later that night, when we spoke, I reminded him of his malfunctioned unit, but since he did not trust any other HVAC repairman with his quality HVAC, he said to would attend to it once he returned, summer was right around the corner, and I hope he would have fixed it before then for his sake. When he finally returned later that week, he went straight to the HVAC provider to get replacements for the worn-out parts so he could finally get help with indoor comfort. He had bought the entire new HVAC component from the same HVAC brand as repair was easier. He valued his unit and even did the HVAC replacement himself with the help of a single of his colleagues. He finally was able to get it running a morning before summertime had begun.