# 2000 Chrysler 300M - Crazy fan **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** chrysler\ **Created:** [November 30, 2022, 7:55pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678 "2022-11-30T19:55:55Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![JimL913](https://avatars.discourse-cdn.com/v4/letter/j/c0e974/32.png) [@JimL913](https://community.cartalk.com/u/JimL913)\ **Post date:** [November 30, 2022, 7:55pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/1 "2022-11-30T19:55:55Z")
My climate control fan is out of control. I can change from dash vents to defrost to floor heat and ac works so the door actuators are working but the fan runs on high regardless if it is on auto or manual. Fan relay ??? ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [November 30, 2022, 8:30pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/2 "2022-11-30T20:30:12Z")
The blower motor control module has failed. ![image](https://global.discourse-cdn.com/cartalk/original/3X/2/2/221fb616e46ae7525909040a86c73dc33ebd6bb4.png) ---
**Author:** ![JimL913](https://avatars.discourse-cdn.com/v4/letter/j/c0e974/32.png) [@JimL913](https://community.cartalk.com/u/JimL913)\ **Post date:** [December 7, 2022, 9:54pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/3 "2022-12-07T21:54:07Z")
Sorry for the delay- Thanks for the answer. Would you know the location ? in dash ? under hood ? Any help is appreciated. ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [December 7, 2022, 9:59pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/4 "2022-12-07T21:59:15Z")
The blower control module is located under the dash near the blower motor. ---
**Author:** ![JimL913](https://avatars.discourse-cdn.com/v4/letter/j/c0e974/32.png) [@JimL913](https://community.cartalk.com/u/JimL913)\ **Post date:** [January 6, 2023, 9:15pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/5 "2023-01-06T21:15:45Z")
OK so I got a new module from Rock Auto-installed it and now the fan will not come on in any mode. I’m stumped. ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [January 6, 2023, 9:20pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/6 "2023-01-06T21:20:07Z")
Is the electrical connector burned? Wiggle the connector. Check for power to the blower module using a test light. ---
**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\ **Post date:** [January 6, 2023, 9:22pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/7 "2023-01-06T21:22:52Z")
Just a thought. Did you disconnect the battery when installing? if not you could have blown a fuse or relay. ---
**Author:** ![JimL913](https://avatars.discourse-cdn.com/v4/letter/j/c0e974/32.png) [@JimL913](https://community.cartalk.com/u/JimL913)\ **Post date:** [January 7, 2023, 7:15pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/8 "2023-01-07T19:15:12Z")
Connector is not burned. Have power to the 2 connectors on the left plug(green & black wires). No, I did not disconnect battery when installing.(DUH) Will be checking fuses next. ---
**Author:** ![JimL913](https://avatars.discourse-cdn.com/v4/letter/j/c0e974/32.png) [@JimL913](https://community.cartalk.com/u/JimL913)\ **Post date:** [January 7, 2023, 7:34pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/9 "2023-01-07T19:34:20Z")
#23 30A blower fuse ok- #17 10A Heater AC ATC fuse ok These are located on the side panel to the left of the steering wheel. I don’t see anything else listed for ac-fan-heater on that panel. The panel under the hood has nothing listed that sounds related. I don’t see any relays labeled AC Heat or ATC on either panel ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [January 7, 2023, 7:48pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/10 "2023-01-07T19:48:26Z")
The green wire is the power supply from fuse #23. The small connector goes to the blower motor, one wire should have power, the other ground. ---
**Author:** ![JimL913](https://avatars.discourse-cdn.com/v4/letter/j/c0e974/32.png) [@JimL913](https://community.cartalk.com/u/JimL913)\ **Post date:** [January 7, 2023, 7:52pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/11 "2023-01-07T19:52:06Z")
I have noticed that the small port on the dash control panel below the fan speed knob is not moving air - related maybe ? ---
**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\ **Post date:** [January 7, 2023, 7:57pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/12 "2023-01-07T19:57:28Z")
I believe that just senses the air temp. in the car cabin area. ![image](https://global.discourse-cdn.com/cartalk/original/3X/b/2/b2e657ce06d48941bee4cd90bb6170fa9453cd81.jpeg) ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [January 7, 2023, 7:58pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/13 "2023-01-07T19:58:16Z")
The in-car temperature sensors get clogged with lint, that won’t keep the blower motor from operating. ---
**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\ **Post date:** [January 7, 2023, 8:05pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/14 "2023-01-07T20:05:39Z")
Well, the only thing i can think of is… the blower motor worked only on high before you put in the blower control module. now you have nothing working. so, it might be a defective module or something shorted when you installed it, being you did not disconnect the battery. I would think a fuse would have blown. so maybe just a bad module. ---
**Author:** ![JimL913](https://avatars.discourse-cdn.com/v4/letter/j/c0e974/32.png) [@JimL913](https://community.cartalk.com/u/JimL913)\ **Post date:** [January 7, 2023, 8:05pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/15 "2023-01-07T20:05:39Z")
OK- Went back to square one. I have a dual plug on the left with green & black wires with power on both. I have a triple plug on the right with green, red w yellow stripe and black wire showing in that order. There is power at the green wire on the right plug and no power on the red or black wires. ---
**Author:** ![JimL913](https://avatars.discourse-cdn.com/v4/letter/j/c0e974/32.png) [@JimL913](https://community.cartalk.com/u/JimL913)\ **Post date:** [January 7, 2023, 8:06pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/16 "2023-01-07T20:06:31Z")
That is when ign is on and fan on manual set to high. ---
**Author:** ![JimL913](https://avatars.discourse-cdn.com/v4/letter/j/c0e974/32.png) [@JimL913](https://community.cartalk.com/u/JimL913)\ **Post date:** [January 7, 2023, 8:13pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/17 "2023-01-07T20:13:20Z")
well since there is no power to the module when the ignition is off that would keep from blowing a fuse and my fuses checked good . Sounds like a defective module to me also. I’ll be contacting Rock Auto ---
**Author:** ![JimL913](https://avatars.discourse-cdn.com/v4/letter/j/c0e974/32.png) [@JimL913](https://community.cartalk.com/u/JimL913)\ **Post date:** [January 7, 2023, 8:57pm UTC](https://community.cartalk.com/t/2000-chrysler-300m-crazy-fan/187678/18 "2023-01-07T20:57:56Z")
Thanks for your help with this problem. I’ve set up return to Rock Auto & will send it out Monday. They will ship replacement when I provide tracking # for the return.