Some of these models had problems with the switch itself; You may want to replace it.
Blown fuse, defective blower motor resistor pack, blower motor, or blower motor switch. This happened to me and I found a connector at the fan motor had fried. I changed the connector and it worked great.
Probably the blower motor resistor, check blower motor at the same time
just worked on a 95 Dakota it was on the firewall in the engine comp. Has a wire connector & is just over the pass side valve cover
This happened on my wife's 2005 Jeep Grand Cherokee. She took it in to Chrysler for diagnostics and they found the blower motor resistor was bad and replaced it. part no# 5143127-AA Resistor Blower - 803502 $11.12 Electrical System Tech labor $149.21 It worked.
I just replaced the front heater motor in my 99 Suburban, it worked great, now the heater/ac absolutely does nothing. Could the switch be bad, the motor, I am stumped and need help. Thanks Jim.
It means that when it only worked on high, that the resistor in the blower fan wiring went bad and the only speed the fan would run on would be a speed where NO resistor was being used, which is the high setting. Your fan went bad because it WAS only running on high for so long and now the entire assembly needs replaced. It's a PITA to get to because it's up in the dashboard so while you're in there, change out your heater core and wipe everything clean.
check to see if you have fire to the motor with a test light.if you have fire there it's the motor if not it could be a relay or the switch. also check the heater motor resistor (bottom of heater box, front passenger side, left foot area) I have replaced 2 on mine in 30k miles. first time failed only the low blower setting worked, second time I had nothing. its a dealer item, about 12 bucks, simple install.
Well i heard plenty of reasons but the one that actually worked for my olds intrigue 98' was replacing the blower motor resistor which cost about 20 bucks or so.....hope this helps
Heater core may be air-bound and need to be bled or heater core may be plugged Remove one water line to heater to see if there is water flow to same. Connect 1st water line and disconnect 2nd to see if there is water flow through heater coreAnswerThe first question that would come to you? 1= are the heater controls operating properly? if they are then 2= is the heaters thermostat operational?Another possibility might be that your radiator fan is not turning off, this happened to mine (though mine is a 1998) my heater had worked the year before but this year it wasn't... we replaced the thermostat and still nothing, on a warmer winter day we flushed the system to clean it, and nothing, finally my dad noticed my radiator fans seemed to be staying on all the time, he looked it up, pulled the fuse for them out and the heater worked just fine, later we replaced the fuse (didn't even buy a new one) and since then the fans and heater work perfectly normally... kinda random but it worked...
I accidentally used low sulfur diesel in my kersoene heater on its first use and it worked without incident. The flames stayed in the "too low" range and produced a slight odor while burning, but nothing seemingly dangerous.
AnswerCheck the heater core and the heater hose.. might have a leak.. i had the same prob..
I had the same problem, no radio or blower or heater controls. It was fuse f11, on the top row of the two, nearest the back. It looked ok, but when I changed it anyway, they all worked again. Hope this helps