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2018 Tundra Heater Fuse (row) missing?

Discussion in 'Electrical' started by Tightloop, Dec 29, 2023.

  1. Dec 29, 2023 at 3:12 PM
    #1
    Tightloop

    Tightloop [OP] New Member

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    The fan is not blowing on the A/C or Heater. There is a cover with like little (glass windows) where the heater fuse should be. The cover does not look removable & I don't see any fuses in it the little (windows). Any ideas how to change the heater fuse in this configuration? Thank you.20231229_164956~2.jpg
     
  2. Dec 29, 2023 at 3:42 PM
    #2
    Danman34

    Danman34 New Member

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    Heater fuse? Heat is produced by pushing air over tubes with hot engine coolant. There is no heater element. You should be looking for a fuse for the blower motor.
     
  3. Dec 29, 2023 at 3:54 PM
    #3
    Tightloop

    Tightloop [OP] New Member

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    Thanks. I read that this fuse should cover the blower motor. It is labeled HTR. This is the area that the diagram shows the fuse but it is not there (see 1st picture).

    20231229_164945~2.jpg
     
  4. Dec 29, 2023 at 4:12 PM
    #4
    Danman34

    Danman34 New Member

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    The blower motor surely would not be a 50 amp fuse. Canadian models have an optional block heater. That may be what that slot is for, but that is definitely not for the blower motor, which would be no more than a 15 amp fuse.
     
    1lowlife likes this.
  5. Dec 29, 2023 at 4:33 PM
    #5
    TILLY

    TILLY Gently Used Member

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    That's the main fuse block you have circled, no need to touch that. Have you checked the fuse panel under the dash for a blower motor fuse?

    Edit: Just checked, there isn't one that I can see for just the blower motor under the dash, seems the blower is packaged in with the A/C , maybe try the #8 7.5 amp A/C fuse under the dash for the hell of it.
     
    Last edited: Dec 29, 2023
    1lowlife likes this.
  6. Feb 1, 2024 at 7:44 AM
    #6
    meplank

    meplank 2018 Crewmax Platinum 4x4

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    I have the same issue, did you confirm which fuse it is and correct location (engine fuse box or interior)?
     
  7. Feb 1, 2024 at 8:15 AM
    #7
    armyoffoo

    armyoffoo Member

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    Supercharged with all the trimmings
    That should be the correct fuse, you should be able to see if it's blow through the window if you clean if off, not sure how to remove it without disassembling the fuse box.
    upload_2024-2-1_10-14-20.png
     
  8. Feb 1, 2024 at 10:22 AM
    #8
    meplank

    meplank 2018 Crewmax Platinum 4x4

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    So for mine it turned out there was no issue with power at the pigtail. The new blower fan had a slight difference in the cover where the plug goes in so it wasn’t making a secure seal. I swapped out the cover with the old fan and that did the trick. The amount of leaves that I had inside the cabin filter area was insane. Guess I’m going to need to be more proactive in cleaning out the cabin filter area more often.
     

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