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It is important to have a diagram when repairing a heating system in a car. A Mercury Mountaineer heating system diagram can be found in its maintenance manual that can be found at auto part stores.
The answer depends on the thermostat setting as well as the kind of heating system that you have.
A thermostat senses the air temperature and turns on or off the switch that controls the heating or air conditioning system, according to the set-point.
By locating the thermostat and turning it down
thermostat
change the thermostat setting
Plugged heater core maybe. Maybe the thermostat. Coolant keeps your engine cool under duress. If the thermostat is stuck open, the engine is staying too cool. Your heat is run off of your engine temperature.
A thermostat in general, is an assembly that measures temperature (if it measures room temperature then we are talking about a room thermostat) and trips an electrical contact on and off comparing measured temperature to a temperature setpoint (the temperature setting we set on the thermostat by means of a rotating knob or a digital screen and buttons. In an hvac system, we install a thermostat inside the room in which we want to control temperature and we set the desired temperature. If current temperature is below setpoint, then the contact trips, and the heating system heats the room. When measured temperature reaches the desired setpoint, thermostat trips off and the heating system will stop giving energy to the room. By starting and stoping the heating system, we achieve to set room temperature within some limits.
why is my 2001 dodge stratus se over heating after i replaced thermostat and bled the system
This vehicle does not have a bleed valve, it is not needed.
form_title=Install a New Thermostat form_header=Programmable and energy efficient thermostats can save you money. Do you want to have an energy-saving thermostat installed?= () Yes () No Are you interested in a thermostat for a residence or business?= () Residence () Business What type of heating and cooling system do you have?=_
A thermostat controlling a heating/cooling system. The thermostat is set at a certain temperature. If the inside temperature drops below this setpoint, the heating system is signalled to raise it. If the inside temperature rises above the setpoint, the cooling system is signalled to lower it. Doing this maintains the temperature within a small band, keeping things relatively homeostatic. This is the best example I can think of.