C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

heater and A/C not working

Thread Tools
 
Search this Thread
 
Old Jan 3, 2022 | 03:46 PM
  #1  
lmallia's Avatar
lmallia
Thread Starter
7th Gear
 
Joined: Nov 2021
Posts: 7
Likes: 0
Default heater and A/C not working

I have a 2003 vette and the heater and ac do not work. What is puzzling to me, is when I turn either of them on, absolutely nothing happens. I do not get anything out of the vents. Any ideas would be greatly appreciated.
Reply
Old Jan 3, 2022 | 05:41 PM
  #2  
1999corvettels1's Avatar
1999corvettels1
Safety Car
15 Year Member
Photogenic
Liked
Top Answer: 1
 
Joined: Jul 2010
Posts: 4,009
Likes: 386
From: Chandler AZ
Default

Sounds like blower motor is not spinning.

Might be a fuse to check, but I’ll let someone else who knows tell where to check for it if there is one.
Reply
Old Jan 3, 2022 | 10:18 PM
  #3  
ncali's Avatar
ncali
Pro
Conversation Starter
All Eyes On Me
Liked
 
Joined: Nov 2018
Posts: 674
Likes: 102
Default

I dont know why but every time I disconnect the battery on my 2000, the same thin happens with my ac/heater. The blower will not work.
I then hook up my tech 2 and run the blower motor using the tech 2 controls and it works again until I disconnect power.

See if you can find someone with a tech 2 and try running the ac /blower using its controls
Reply
Old Jan 8, 2022 | 09:14 PM
  #4  
RandolphB's Avatar
RandolphB
Team Owner
15 Year Member
Community Builder
Community Influencer
Conversation Starter
 
Joined: Dec 2010
Posts: 21,157
Likes: 41
Default

Sounds like the heater/ a/c control is bad. It turns everything on and off.
Reply

Get notified of new replies

To heater and A/C not working





All times are GMT -4. The time now is 08:40 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE