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Fan Control

Discussion in 'General Tundra Discussion' started by Russ296, Mar 1, 2020.

  1. Mar 1, 2020 at 6:50 PM
    #1
    Russ296

    Russ296 [OP] New Member

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    01 White Tundra
    Bluetooth radio, bone stock otherwise
    Found this while replacing the radio in my 01. Anyone else have an issue with this control? Or have a lead on a replacement? It still works, but I’m not crazy about operating my truck with a switch that has got hot enough to do this.
    9C72D9D9-CD99-4B44-8D6D-50C0CC26EBFB.jpg
     
  2. Mar 1, 2020 at 11:25 PM
    #2
    johnvan

    johnvan OG

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    Rensselaer,New York
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    That's the heater control housing, look like it got hot,it's plastic. If the switch still works, I wouldn't worry about it. If you want to replace it,get your wallet out, not cheap.For the part check with Roman from Cool Springs Toyota, He's a member here. Great guy.

    I attached 2 pfd's that might help.
     

    Attached Files:

    Last edited: Mar 1, 2020
    Russ296 [OP] likes this.
  3. Mar 3, 2020 at 3:06 PM
    #3
    TechWrench

    TechWrench New Member

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    Hawley, PA
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    Toyota Bedliner, Under Cover Bed cover, Oem back-up camera system.
    I would recommend you start looking for a replacement. From your pic, I am going to guess that one, or more of the resistors on the fan control circuit board are overheating. Best case, the individual resistor burns up and fails, which usually means you will lose one or more fans speed. Worst case, the resistor could heat up enough to burn the control board, and possibly cause a fire. Most heater fan control systems use a combination of different resistors to regulate how much current is sent to the blower motor, based on the fan speed switch setting, in order to change the fan speed. This is not that uncommon a failure. I have seen it for many years, across various manufacturers. Usually the fan speed control is replaced to fix it, but I have seen where some individuals with electrical experience have replaced the specific resistors instead of replacing the entire unit.
     
  4. Mar 3, 2020 at 4:27 PM
    #4
    hagrid

    hagrid Ich habe sie gespritzt

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    Spraynard
    Pittsburgh
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    Good Lord, I hope not. Need to save money for fuel.
    If the fan motor is going south (bearings) that will create more load, thusly drawing more amps through the resistor bank. That has the net effect of raising the thermal output of the resistors.

    While you are neb-nosing under there check to see if the fan moves freely.
     
    TechWrench likes this.
  5. Mar 3, 2020 at 4:33 PM
    #5
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    Hand Protectors
    Also, check the blower motor resistor located next to the blower motor itself.

    Your plastic shouldn’t be melted like it is in your pic. Something is causing it to overheat.

    Junk yards sell replacement control panels.
     
    TechWrench likes this.
  6. Mar 3, 2020 at 4:37 PM
    #6
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    Hand Protectors
    I’d buy a new OEM blower motor and resistor as they are both relatively inexpensive. Buy a used control junk yarder as those are high dolla brand new.
     
  7. Mar 21, 2020 at 9:34 AM
    #7
    Russ296

    Russ296 [OP] New Member

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    Bluetooth radio, bone stock otherwise
    All the fan speeds work, but I tried to use the air conditioning yesterday with no luck. Had no indication that the compressor is cycling. Could this be the reason I have no ac?
     

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