73-87 Chevy _ GMC Trucks > Heating, Ventilation & Air Conditioning (HVAC)

Heater & A/C blower doesn't work on high speed

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batcomm1:
I'm having an issue with no high speed but all other speeds work fine, is there a location for a high speed fuse only to check?

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bd:
What year/model truck?  Does it have an inline fuse connected to the firewall junction block stud?

batcomm1:
84 Silverado

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batcomm1:

--- Quote from: batcomm1 on September 09, 2021, 03:27:36 PM ---84 Silverado

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--- End quote ---
Has all speeds but high, ran a 12v directly to it, got nothing, but as I said still works on all speeds but high...

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batcomm1:
Here ya go

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