20-second Defroster?
Thread Starter
TECH Resident
iTrader: (13)
Joined: Jan 2006
Posts: 982
Likes: 1
From: Gainesville, FL
20-second Defroster? Not sure if this is the right forum, but... My rear window defroster is malfunctioning. When I hit the button on my 99 TA, it lights and stays lit for about 20 seconds, then goes out. The rear window defroster seems to work for that short period, and won't come back on for a few minutes, and then repeats. Seems like it may be like the circuit that people have trouble with on the window motors that heats up. Anyone have any fix ideas?
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Thread Starter
TECH Resident
iTrader: (13)
Joined: Jan 2006
Posts: 982
Likes: 1
From: Gainesville, FL
So I replaced the 30A fuse this afternoon and ran the defroster for a while. Seemed to run longer, I haven't had a chance to try it with actual frost yet. I'll update when I get a chance to see how it works.
Yea mine would stay on for 25 seconds then the circuit breaker would overheat and kill both my rear defroster and power seats. After I replaced it with a 30a fuse the problem with that stopped for good. Hope it works for you guys like it worked for me
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
I have had the defroster problem for a few years now but living in Florida it isnt a big deal. However i needed it Monday as we had a 30 degree morning here in Orlando(current temp of 85) and my seats quit working. I was so pissed I could have ripped the steering wheel off. A minute later the seats started working.
Glad I found this post.
Glad I found this post.
Thread Starter
TECH Resident
iTrader: (13)
Joined: Jan 2006
Posts: 982
Likes: 1
From: Gainesville, FL
With the mornings getting a bit warmer, there are less opportunities to test the defroster. After replacing the breaker with another breaker and blowing that, I tried kyleholt11's advice and grabbed a 30A fuse. The result has been perfect performance on the three mornings I have tried.
