C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

72 Heater control light

Thread Tools
 
Search this Thread
 
Old Dec 5, 2015 | 06:59 PM
  #1  
MSS400's Avatar
MSS400
Thread Starter
Advanced
 
Joined: Feb 2015
Posts: 55
Likes: 0
Default 72 Heater control light

I was able to replace the bulb in the bottom of the heater control. The bulb works, but it doesn't make the control light up at all. What sense does that make?
Reply
Old Dec 5, 2015 | 07:06 PM
  #2  
Mooser's Avatar
Mooser
Race Director
10 Year Member
 
Joined: Apr 2011
Posts: 11,183
Likes: 3,334
From: North of Toronto - Ontario
Default

When you say the bulb works, you mean it works when it's installed in the control or are you talking about on the bench?

There's only a few tiny slits that let any light actually make it up to the lens so it's hard to see almost anything unless it's actually dark. Like a lot of the vette lights, it's pretty dim at the best of times. Make sure your light switch is turned to the brightest setting.

I converted to LEDs which are brighter, but honestly not that much, especially compared to the modern stuff
M
Reply
Old Dec 5, 2015 | 07:15 PM
  #3  
MSS400's Avatar
MSS400
Thread Starter
Advanced
 
Joined: Feb 2015
Posts: 55
Likes: 0
Default

I actually went outside in the dark, put in an LED bulb, turned on the car, turned on the headlights, and held the bulb/socket in my hand. I can see that the bulb is lit up. Then I stick it in the bottom of the unit and nothing! It doesn't seem to light it up at all! I'd rather not pull out the unit, but it's like there must be a blockage or something...
Reply
Old Dec 5, 2015 | 07:30 PM
  #4  
Mooser's Avatar
Mooser
Race Director
10 Year Member
 
Joined: Apr 2011
Posts: 11,183
Likes: 3,334
From: North of Toronto - Ontario
Default

Well there should be some light sneaking through if it's on.

Buried in here is what goes on inside of the heater control and a bunch of other crud you don't need to know

https://www.corvetteforum.com/forums...-assembly.html

And yeah it's a PITA to get out, surprised you managed to get the bulb changed without doing a complete frame off

Any chance the bulb got knocked out of the socket when putting the console or heater plate back in?
M
Reply
Old Dec 5, 2015 | 07:36 PM
  #5  
MSS400's Avatar
MSS400
Thread Starter
Advanced
 
Joined: Feb 2015
Posts: 55
Likes: 0
Default

Yeah, I saw that post and it doesn't really make any sense why the light can't get through. And yeah, I don't want to pull the whole thing out just to see what's wrong. Oh well. Thanks.
Reply
Old Dec 5, 2015 | 09:16 PM
  #6  
Mooser's Avatar
Mooser
Race Director
10 Year Member
 
Joined: Apr 2011
Posts: 11,183
Likes: 3,334
From: North of Toronto - Ontario
Default

What did you put in for an LED?
The ones I used are this style



M
Reply
Old Dec 6, 2015 | 01:35 PM
  #7  
MSS400's Avatar
MSS400
Thread Starter
Advanced
 
Joined: Feb 2015
Posts: 55
Likes: 0
Default

Maybe that's my problem. My LED is from some company named Gaatu and maybe has too focused a light beam. Maybe it's just not spreading out well. I'll try another bulb because it makes no sense.
Reply
Old Dec 13, 2015 | 06:06 PM
  #8  
MSS400's Avatar
MSS400
Thread Starter
Advanced
 
Joined: Feb 2015
Posts: 55
Likes: 0
Default

That was the problem. I took out the LED and put in a regular bulb. The LED was apparently casting its light straight up at the plate and wasn't diffused enough. Now it lights up at night.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-1

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-2

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-3

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-4

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-5

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-6

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-7

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-8

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-9

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
Old Dec 13, 2015 | 06:10 PM
  #9  
Mooser's Avatar
Mooser
Race Director
10 Year Member
 
Joined: Apr 2011
Posts: 11,183
Likes: 3,334
From: North of Toronto - Ontario
Default


The LED bulbs sit very close to the bottom of the plate so if there isn't any going sideways it's basically blocked off
Glad you got it resolved
M
Reply

Get notified of new replies

To 72 Heater control light





All times are GMT -4. The time now is 08:13 AM.

story-0
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-1
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-2
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-3
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-4
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-5
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-6
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-7
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-8
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-9
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE