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Electromagnetic interference aka "EMI"

This invisible problem has effected audio equipment, ignition systems, fuel injection systems, and even alternators.  The wire from the controller to your fan is emitting this EMI invisible noise.  The best way to deal with this is to shield the wire from the controller to your fan.  See our MORE/PDF on this EMI cure.

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We received this email from Frank on his alternator EMI problem:

"Its hard to count the number of people who insisted that either the alternator or your controller was defective.  No description of how or why, just EMI can't do that!

If I ever do this again, I'm buying shielded wire to start with!"

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    Before you purchase that brand X controller, check their DC current rating and history of failures!   The Auto Cool Guy starts at 55 amps - to a monster 200 amp unit!

    The On Line Store Page 1 below. . . .

    DIESEL RADIATOR TEMPERATURE CONTROL

    HF-125 BLACK B.JPG

    The Auto Cool DX-150 for push button radiator temperature control.

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    * Rated at 150 amps max

    * 10 LEDs show % of Pulse Width

    * Temp memory hold when off

    * Push button temp control

    * Soft Start limits inrush current

    * Cool down timer on or off

    * A/C fan speed control

    * No calibration required

    * 1/4 inch brass studs fan & ground

    * Use any of our sensors

    * One year warranty

    * Base: 6.0 x 7 inch

    Our brand new HF-125 controller.

    * Operates at 7 KHz (7,000 cycles)

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    * Constant radiator temperature control

    * High frequency = no fan buzz

    * Order yours in gloss Black or Blue

    * Rated at 125 amps max

    * Standard rotary pot to set temperature

    * Soft Start limits inrush current

    * Cool down timer on or off

    * A/C fan speed control

    * No calibration required

    * 1/4 inch brass studs fan & ground

    * Use any of our sensors

    * Heavy 1/8 inch aluminum case

    * All our controllers are made in the USA

    * One year warranty

    * Base: 5 x 6 inches

    Make sure you send us your mailing address!

    Be sure you email the size sensor you need!

    We are not getting Pay Pal notes?

     

     

     

     

     

     

     

     

    The Auto Cool Guy is

    # 1 in customer service!  

    call or email 7 days a week!

    562-367-3225

    please try to avoid voice mail!

    autocoolguy@yahoo.com

    Auto Cool controllers

    are proudly made in America!

     

    The Auto Cool Guy supplies the Standard Brass Sensor with your controller.   

     

    However, if you purchase a Brass Plug Sensor or one of the Copper Inline Sensors,  we do not supply the Standard Brass Sensor as the default sensor with your order.  

     

    Send us an email on the size of sensor you have ordered!   We are not getting the pay pal notes?

    We get a vast amount of calls and emails from pissed off guys that purchased the brand X controller from that 

    "Racing Company."

    The Auto Cool Guy

    ends up selling them a reliable Auto Cool Controller!

    Patch of the First Log Command, aka, the leaning S**T house.  Our mission was ammo supply from Chu Lie to Quan Tri City.

    MADDOX.jpg

    USS MADDOX DD731

    GULF OF TONKIN 1964

    LBJ JFK.jpg
    The Auto Cool III is rated at 125 amps and fused at 150 amps.
    It has Fail Safe to turn fans to full RPM with a small switch on the dash.
    A/C fan speed control with a small pot on the side of the of the controller.
    Radiator temperature will over ride the A/C fan RPM.
    This controller is made with stainless and brass hardware.
    The case is powder coated for long life in BLUE OR GLOSS BLACK.
    FAN and GROUND terminals are 10-32 studs.
    You can find the PDF install data on this site at MORE/PDF.
    Case size: 4.7 X 4.5 X 2.2 height

    AUTO COOL III 125 A PWM CONTROLLER BLACK

    $210.00Price