The simplest thing is that there isn't any hot water! You can check at the hot water heater as well as at the faucets. Check the heater itself and make sure it isn't leaking. If it is a gas heater,...
this question is vast. if no hot water is not coming out the pipes its possible the pipes can be blocked or the valves are blocked. if the temp is not hot, check wiring to the geyser or the element...
Not hard. Take the radiator cap off and crank it up and let it run until it gets to operating temp. You should be able to see the coolant moving inside the radiator. if it is, it's working.
easiest way to tell if water pump is working is to run engine until at running temp. then carefully remove radiator cap. with someone slightly reving engine, look into radiator. if the pump and...