Controlling the temperature

Since we are in the midst of a sizzling summer season, we are all cranking our air conditionings.  Every one of us may even be maxing out those air conditioning systems. My mom called me the other day, so I drove over to my parents home only to find that their air conditioning was not working.  My elderly father retrieved numerous fans from his attic to help with the lack of air cooling. The thermostat at his home was showing dangerously high numbers, so I thanked my mom for calling me. My Dad had no idea as to how the air conditioning was not really working well, so I needed to find out.  Although showing a high reading, the thermostat looked pretty normal. I asked my folks when they first noticed a lack of cool air conditioning. They said it appeared warmer last week, but figured it was just another sizzling period. So, I immediately check the air filter and find it to be quite filthy.  Since I am their only kid here, I should take responsibility for not changing their air conditioning filter. My Pop thinks he can handle everything still, and I try to supply him with that respect. Obviously, I will now need to watch over them a bit more carefully. I then went to the outside condenser only to find it frozen.  That is when I called my partner to come get my parents out of the sizzling house. I immediately called the HVAC provider. With my parents safely tucked in my air conditioned home, the HVAC cooling system will be repaired tomorrow. Not long after, they can come back to their air conditioned home.