blower not working

[dexter2500]

ok i read most of the threads about the blower system..i have a 200 grand prix 3.1 no heat so i replaced blower motor now it works on high so i replaced the resistor also and it still only blows air on high really lost on the next step and fuses are ok any help?..thks

[BNaylor]

Just to clarify blower speed position 5 works and 1-4 still don't?

Did you check to see if 12 volts is at the fuse socket that feeds the climate control unit? If the 12 volts is not there then back track to the ignition switch. If present forward to the climate control unit. Position 5 hi speed uses 12 volts straight off the battery so that would explain why it is working,

[dexter2500]

right the 5 high speed still works great just no 1-4 i tried it again today and the speeds actually worked but for ony a second then nothing but high..could it be the switch?..i couldnt get it to work again thks for the help

[BNaylor]

What brand blower motor resistor (BMR) did you use?

When you have unresolvable blower motor problems such as this like after replacing the BMR the ignition switch is suspect but it is better to try to troubleshoot it a little better. It is a common problem so it is a possibility.