check the fuse
A bad control switch can cause your 2003 Nissan Sentra heater blower to stay on. The motor or a bad sensor can also cause the heather not to work properly.
Birth control can help to make your period lighter, and a tad quicker.
No.
A bad heater core / it needs to be replaced
Check the A/C fuse, that's what happened on my '85.
Numerous things could cause the Nissan Altima to stall. One such thing is the idle control valve, also the exhaust system could cause the engine to stall.
the heater core could be pluged or the heater control valve is stuck closed
Most likely it's the heater control valve. If the heater control valve leaks a little it can allow a small amount of heated engine coolant to circulate through the rear heater core.
low coolant? Bad thermostat? Climate control not sensing proper temperature? Heater core plugged or restricted? Heater core airbound?
A Fire!
bad heater core, heater hose blockage, low coolant, bad heater valve, bad control head. With my car, it was Heater matrix clogged with radiator sealant. The workshop cleaned it and it's start working fine!
Either the linkage from the temp control unit to the valve on the heater core (which is behind the radio and temp controls) or it is the heater core itself.