Blower Motor Stopped Working 1991 LS400
#1
Blower Motor Stopped Working 1991 LS400
Hey Guys,
Sorry if this is a re-post, but i've searched forums now for over 3 hours and no one has a solid answer to this common issue.
My Blower motor stopped working recently. I have hooked up power directly to the blower and it does work fine. I have changed the following parts
Transistor
Resistor
Control Unit
All my buttons work and "beep" as they are selected on my control unit, and you can even hear the High relay kick in when the high setting is selected.
Any information on this issue is greatly appriciated
Thanks
Sorry if this is a re-post, but i've searched forums now for over 3 hours and no one has a solid answer to this common issue.
My Blower motor stopped working recently. I have hooked up power directly to the blower and it does work fine. I have changed the following parts
Transistor
Resistor
Control Unit
All my buttons work and "beep" as they are selected on my control unit, and you can even hear the High relay kick in when the high setting is selected.
Any information on this issue is greatly appriciated
Thanks
#2
Run the diagnostic test on it. If you can't find it, maybe when I get the time I'll post it. Lots of typing .......
Hmmmm its our lucky day I just found this. It still needs better instructions though.
Hmmmm its our lucky day I just found this. It still needs better instructions though.
Last edited by dicer; 01-30-16 at 12:29 PM.
#5
Yea im about 8 hours in, diagnosing this issue, and cant quite figure it out. I have hooked power up to the blower and it seems to work fine. Also put a new resistor in. I have put a different climate control unit in as well, and still nothing. Im noticing that i do not have a hot wire, or constant power to my High relay, no matter the setting. From my understanding the high relay then feeds to the resistor, and this will determine the fan speed. I have reset all the breakers as well. Checked all fuses more than once. Im wondering if i have a grounding issue, or possibly a bad breaker? Something that would eliminate the blower from seeing power. Any suggestions?
Would really like to get back to winter in the lead sled......
Would really like to get back to winter in the lead sled......
Last edited by Guywithcar; 02-01-16 at 03:13 PM.
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#9
So i ran the diagnostic, and i got code 21. (dont worry i ran the test during the day) to my knowledge i should have either an open or a short in my solar circuit? Has anyone ever run into this?
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