your heater is more than likely to be working at night, but simply retain the temperature rather than increasing it. a solar cover will assist this.
Are you running the pool pump at night too. Pump not working nothing works.
a crime lab works during the day and the night !!!!!!!!!!!!!!!! a crime lab works during the day and the night !!!!!!!!!!!!!!!! a crime lab works during the day and the night !!!!!!!!!!!!!!!!
It could be that your head gasket is blown.
the reason for water coming out from under the dash is that a hose could have broke or you have a problem with your heater. your heater works off of the water in the radaitor and since it gets hot from the motor well it serculates threw the heater and that's who your heater works
That or the thermostat.
i think kideny;
could be head gasket problem. does your heater work? might need heater core , clogged up. do compression test. or bypass heater core and see if that works.
Toaster above is what they are looking for since it has elements like a heater but one could argue an electric stove works the same way-
Maybe low coolant level
The rear defrost is electric. The heater works off the hot water in your radiator running thru it and a fan blowing the heat into your compartment.. check your thermostat, it could be that your heater core isn't getting and water to it, that is were your car get's it't heat from, if not that it could be lack of water
Open your eyes and look up - that generally works.
Get the air out of your heater core.
I would first check either the controls to the front heater core or a blocked front heater core. It could also be a blocked or missing heater hose to the front heater core, although that seems quite unlikley.