After changing blower resister, fan works. blows hot on one side and cold on the other

wires get hot through either a bad connection or too much power being drawn through them, as for the heater blowing cold is there any hot water flowing through the heater check the pipes for the heater that pass through the bulk head

may be something plugging the heater tube itself, maybe a rodent has set up camp, fan resister works both cold and heat fan speeds, unless they have a resister for cold and hot which I have not heard of.

I would turn the fan on with the van off and listen to see if just the blower is working at all or a slower speed. . If you have a volt meter you could make sure it was getting power by unplugging the wire to it and testing there.. If you have power then the blower motor is the problem . If it was a resister it would not work at all normally. or it would work on one speed but not another speed in most cases.. I would think by the age of it more likely a bad blower fan motor .the part is about 73 dollars to replace complete with fan and the resisters are 15-20 at your local auto parts store .
This could also be a wire harness issue with the resister plug which supplies the power to the blower . it very common that the wires got hot and melted from old age or from a blower that was old and drawing too much power .The resister and harness or located under the hood on the firewall of the passenger side of the van .Yes there is a fuse for the blower fan under the dash .If it has blown it could be the blower drawing too much power.or other issues .
Yes we sure do feel the heat here in Florida .

Replace blower motor Dodge Grand Caravan 1996 2000 chrysler Town Country...


Replace Blower Resistor for 2000 Chrysler Town and Country

To troubleshoot this types of problem,click the link below :----http://howtobyme.blogspot.in/2012/02/heater-blows-only-from-defrost.html
--------Go through the procedure to confirm the issue.

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Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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No heat on car? http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

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Heater blows intermittently and temp gauge goes erratic? http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html------------Heater blows cold? http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html
---------Car heater blowing warm, but not hot air? http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html-------- Heater/AC blower motor not working?

http://technoanswers.blogspot.in/2012/02/heaterac-blower-motor-not-working-on.html

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A/C, heater, defroster fan, not working? http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html Heater problem? http://technoanswers.blogspot.in/2012/02/heater-problem-on-isuzu-trooper.html---------

This will help.Thanks.

is the blower fan working? does not sound like it.. I think its located under the hood on passengers side of engine compartment, either the motor is bad or the blower resister could be bad, if its not blowing any air...

there is a blower motor resister which controls fan speed i believe its located pass side of dash by blower motor has one plug about 5 wires red ,orange .blue yellow

Well had the same issue on my duel climate controll 04 2500HD but changing the heater control solved the different temp.The only other thing would be your mixer door motor.There are two,one for DR side is probibly stuck..As far as the blower motor.The resister should have taken care of that.Sounds like you may have another bad one.May want to take a volt meter to the resister plug in and run you different fan speed just to make sure that you get voltage to the different conecters.

It sounds like your blower resister blew it operates all the speeds except high blower speed that is a direct feed no resistance

Either Your fan switch is burned out or you blower motor is no good, your blower motor is on the passenger side under the dash. Before you replace any parts you need to check your fuses and relays under your hood and in the car. Usually if your fan switch goes bad you will still get some air blowing thru the vents, so my guess would be blower motor, If its not a blown fuse or relay.

did you put power to the fan to see if it is good? did you check the fuse ?did you look at the blower resister?