Heater problem on 2004 Chrysler Sebring

Bad connection at heater box under to hood

Do you have heat? Does the fan turn on? are you getting air from the defroster vents close to the windshield? If you have heat make sure the defrost control is working. I'd open the outside air vent and turn the blower on high speed. If there is no heat, the heater control valve is not working. Double check the radiator fluid tank, make sure you have enough fluid (antifreeze) Low fluid levels can reduce the hot water flow to the heater coil inside the car. If there
is no air flow through the defroster vents you may have a problem with the fan control, or the fan motor. Good luck.

If the air blows out of all of your other vents then you have either had an actuator go bad which controls which ducts the air flows through, or the shaft that has the "flap" on it has popped loose and no longer moves which will only allow air to go to the vents that are not locked. The easiest way to find out would be to get under the dash and start at the fan and trace air flow til you find the problem.

ckeck your blower resistor and the connection

Hello and welcome to FIxYa!
You may want to check on the vents for it can be closed half way. If the vents are good then the problem will surely be on the blower itself. It can be worn out that's why the blower motor blows weak. Once replaced I believe you'll be good.
Hope this helps and thank you for using FixYa! Have a good one!

replace blower motor resistor

CHECK FOR VOLTAGE AT HEATER BLOWER MOTOR IF NOT YOU COULD HAVE A FAULTY BLOWER MOTOR RELAY.IF YOU HAVE VOLTAGE AT BLOWER MOTOR THEN BLOWER MOTOR FAULTY.

First off, time for a thermostat change if not done recently. Where does your temperature gauge ride when at normal operating temperature? Same as usual, or lower? As far as fan goes, sounds like fan resistor has gone and will need to be replaced. I'll double check to see if it's an inline resistor, or part of blower motor & get back to you. Are you planning on attempting all this yourself?

If it is noisy when it runs and sounds like it is slowing down, then starting up again, you probably need to replace the entire blower.

You need to replace the blower motor resistor...