fan runs all the time

HVAC, heating, cooling, air handling. Anything air temp related.
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thegreenmachine
I get chills without my van.
Posts: 81
Joined: Sun Oct 03, 2010 9:50 am
Location: chilliwack B.C.

fan runs all the time

Post by thegreenmachine »

hey all, glad to be back! had to take a breif hiatus due to not actually having a van anymore.

so i bought another one. 2003 astro awd.

just one weird thing. even when the key is off, and the switches are off, the fan for the hvac still blows......had to take the fuse out so it didnt kill my battery. any ideas????
2003 Chevrolet Astro 4wd np233c transfercase 245/75/16 ETS Trailermaster tires
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Previous:
1995 Safari AWD (death by torsion bar. a.k.a. "the final straw")
1999 Safari AWD ( death by tree x2 )
1997 safari rwd cargo ( sold @ 450,000+ km )

LiftedAWDAstro
I have my van tatooed on my cheeks
Posts: 4379
Joined: Sat Sep 09, 2006 3:35 pm
Location: New Haven, NY

Re: fan runs all the time

Post by LiftedAWDAstro »

Is it the high speed that blows? If so it might be the relay is stuck closed. It is part of the resistor assembly so you'll have to replace the whole pack. You could tap on the resistor pack to see if it releases. It is located behind the washer fluid reservoir and coolant overflow bottle in the heater / A/C duct work.
Current rides:
2013 Toyota Tundra DC 4x4
2008 Dodge Nitro 4x4
2005 Nissan Sentra 1.8S Special Edition

Mileage spreadsheet

Vans owned:
1986 Safari 2.5L 4 speed manual - scrapped
1995 Astro 2WD conversion 4.11 posi, shift kit, DHC rock rails - sold to Skippy
1998 Astro 4x4 D44, D60, NP231, full hydraulic system with 9k# Milemarker winch and snow plow - sold to Lockdoc
2003 Astro AWD all stock - traded for a 3/4 ton truck
2005 AWD, 4.10's - sold to skippy
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