The O and B terminals are not properly enabled in the thermostat or not correctly hooked up in the unit. Some units energize the O or the B terminals to activate the reversing valve for heating or cooling, Check with the manufacturer or just try to make the swap and see if it corrects the problem.
In my house there is. I call it "my arm". If you have really high ceilings, I suppose you could use a pole of some kind.
The person who does the ceiling of a house is commonly referred to as a "ceiling installer" or a "ceiling contractor." They are responsible for installing, repairing, or renovating ceilings in residential or commercial buildings.
The architectural term is "vault"; some call it a cathedral ceiling.
a 'storey'
It can be repaired if you call an electrician.
Its is called a chandelier.
Heatsink uses what they call passive cooling where as liquid cooling systems use active cooling.
Yes. Most ceiling fans have parts that let you either put the fan close to the ceiling (which is typical for an 8' ceiling) or let it hang down farther from the ceiling. All my ceilings are 8' and I have 4 ceiling fans in 4 different rooms and they work good by letting me reduce my AC usage, which is much more expensive.
ceiling
Laptops should be put on a "Cooling Tray" or "Cooling Pad" as most people call it. If you do not wish to invest in a "Cooling Tray/Pad", do not set your laptop on a bed or carpet during use. A laptop, without a "Cooling Tray/Pad" should be on a desk or table at all times, so there is good ventilation. Failure to have ventilation can cause problems within the laptops hard drive. (Over heating) With a "Cooling Tray/Pad", a laptop may be placed anywhere, as long as the vents have space to maintain air flow to prevent over heating.
Dome
an igneous rock