Please review the "Related Questions" below for more specific details regarding the temperature blend door and its actuator motor.
there is a short somewhere in dash or heater, you need to fix that to stop fuses blowing
Could be a bad thermostat or heater core
Could be a Faulty relay.
depends. is the fan blowing? if not could be switch. if so you may need to replace the heater core first thing is see if your coolent is low. if it is you will not get any heat
it could be a couple of things you could have a bad thermostat or a bad heater core
mor vehicle info would help, but blower motor can be shot without blowing fuse
If the heat is not working on a 1992 Mercedes 400e, there could be a number of problems. The thermostat could be sticking if the car is only blowing cold air. If there is no air at all, the blower motor or the heater core could be at fault. There could also be a burned out fuse for the entire system.
Your heater may be blowing cold air because there could be a problem with the thermostat, a lack of fuel or a clogged air filter. It is recommended to check these components and consult a professional if needed.
If the heater in a 1997 Mercury Mountaineer is not working, it could be due to several issues. Common causes include low coolant levels, a faulty thermostat, or a malfunctioning heater core. Additionally, problems with the heater control valve or a broken blower motor can also prevent warm air from circulating. It's best to check these components to diagnose and resolve the issue.
If you have lost a sufficient amount of coolant this will stop the heater working because there will be no hot water in the heater rad.
Possible causes are low anti freeze in radiator. Heater core could be plugged. Your dash controls may not be working. Plugged heater hoses.
There could be multiple reasons why a heater would stop working in a truck. There could be low coolant or a bad fuse to make a heater stop working in a truck. The best way to find out the reason is to take it to a certified auto mechanic.