AC blower only works on high - The 1947 - Present Chevrolet & GMC Truck Message Board Network

aggiedave98 · 08-22-2005, 11:26 AM

The AC blower only works on high. I thought it was the resistor pack, but that is actually fine.

What else can it be? The switch itself??

Thanks.

mhicks · 08-22-2005, 01:08 PM

What year is it?

aggiedave98 · 08-22-2005, 01:57 PM

sorry. it's actually an '89 suburban, but I posted it here since the controls are all the same for the '89 burban and '87 and earlier trucks.

Justins76 · 08-23-2005, 01:46 AM

Might want to check the relay that's in the enigine bay on the blower box. I've had to replace a few of those.

aggiedave98 · 01-03-2006, 04:04 PM

just went back and found this... turns out it was the wire going to the relay.. it had melted some and had a bad connection... I went ahead and replaced the relay.... thanks!!

Justins76 · 01-09-2006, 01:59 AM

About every 10 years I have to replace that darn relay. lol

08-22-2005, 11:26 AM	#1
aggiedave98 Senior Member Join Date: Aug 2003 Location: Sugar Land, TX Posts: 1,007	AC blower only works on high The AC blower only works on high. I thought it was the resistor pack, but that is actually fine. What else can it be? The switch itself?? Thanks.

08-23-2005, 01:46 AM	#4
Justins76 OutOfMyMind & I'llNeverKnowWhy Join Date: Apr 2004 Location: Another world, some other time Posts: 672	Might want to check the relay that's in the enigine bay on the blower box. I've had to replace a few of those. __________________ -Justin-Out of my mind and I'll never know why 1976 Chevrolet Silverado C10 350 4bbl / TH350 Big10 longbed 1986 Pontiac Firebird T-Top 5.0L TPI 700R4 WS6 1992 Pontiac Firebird T-Top 5.0L TBI 700R4 My cardomain page I don't like to save, it's more fun to spend!!

01-03-2006, 04:04 PM	#5
aggiedave98 Senior Member Join Date: Aug 2003 Location: Sugar Land, TX Posts: 1,007	Re: AC blower only works on high just went back and found this... turns out it was the wire going to the relay.. it had melted some and had a bad connection... I went ahead and replaced the relay.... thanks!!

01-09-2006, 01:59 AM	#6
Justins76 OutOfMyMind & I'llNeverKnowWhy Join Date: Apr 2004 Location: Another world, some other time Posts: 672	Re: AC blower only works on high About every 10 years I have to replace that darn relay. lol __________________ -Justin-Out of my mind and I'll never know why 1976 Chevrolet Silverado C10 350 4bbl / TH350 Big10 longbed 1986 Pontiac Firebird T-Top 5.0L TPI 700R4 WS6 1992 Pontiac Firebird T-Top 5.0L TBI 700R4 My cardomain page I don't like to save, it's more fun to spend!!

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08-22-2005, 01:08 PM	#2
mhicks Registered User Join Date: Jan 2004 Location: Weatherford,Tx Posts: 747	What year is it?

08-22-2005, 01:57 PM	#3
aggiedave98 Senior Member Join Date: Aug 2003 Location: Sugar Land, TX Posts: 1,007	sorry. it's actually an '89 suburban, but I posted it here since the controls are all the same for the '89 burban and '87 and earlier trucks.



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