A/C quit working
#1
A/C quit working
This afternoon my a/c quit blowing. All the way on, the motor doesn't come on, I don't feel any air at all. Now, when I switch the switch all the way off, the a/c light stays lit, before it would go off. The truck is an '05 Dodge Ram 1500 with a 5.7 Hemi, 4x4, 157K miles.
#2
#3
First, check your fuse box and fuses. Good? Proceed to 2
2nd, disconnect the plug to the blower motor and jump 12 to it to check the motor. Good? Proceed to 3
3rd, check for voltage before the fan motor resistor block (with the key on). Good? Proceed to 4
4th, trace your wiring and make sure all plugs are connected good. It is a good idea to disconnect each and test for voltage with the key on. Good? Go to 5
5th, check and replace ignition switch
2nd, disconnect the plug to the blower motor and jump 12 to it to check the motor. Good? Proceed to 3
3rd, check for voltage before the fan motor resistor block (with the key on). Good? Proceed to 4
4th, trace your wiring and make sure all plugs are connected good. It is a good idea to disconnect each and test for voltage with the key on. Good? Go to 5
5th, check and replace ignition switch
#5
I know this is an older post but I finally fixed my issue. My controls stopped working and it was difficult to see going to work one morning. The A/C light would stay on even if the controls were off. I started moving the steering column up and down and the blower would kick on when the steering wheel would tilt down. My issue ended being the ignition switch. Swapping this also fixed my windshield wiper/high low beam multifunction switch. Hope this helps anybody who might have the same issues.
#6
Edit - Found an old switch. Here's the failure mode I'm talking about
I believe this one I've sanded the channel to allow the blower to turn on, but it failed again shortly after.
Last edited by Prismatic; 11-14-2014 at 03:10 AM.