I have 2 issues that I have been unable to resolve and my mechanic shop can't either. (Re. #1 problem) The fact that the HVAC Display in the dash doesn't Light up any more is not the problem. It's been that way for years now and the fan always worked fine. The compressor turns on and off just fine, just no blower fan. I live in Mobile Alabama and there isn't much in the way of Corvette Help available here, that I can find that is.
1) My HVAC blower fan stopped blowing a couple of years ago. My mechanic shop replaced the blower motor and it worked fine for about one year, then started working intermittently and finally stopped working at all. I had them look at it again and they couldn't find the cause of the problem. The fan motor when removed worked fine, but not in the car. They could find No solution. I wonder if the fan motor could be wired directly to the battery with an inline fuse and a 3 way switch with an on and off position? I bought the car new.
2) I also have a slow current drain on the battery that they couldn't find. After 2 or 3 days of not running the engine, the battery goes dead and must be jump started.
*If I lived in a big city instead of the middle of "nowhere", a Corvette Shop might be available. Chevrolet Dealer is completely worthless and won't touch older Corvettes here in Mobile. I think there is one Corvette shop in Pensacola Florida, maybe. Thoughts and suggestions are very welcome.

 

Sounds like a wiring issue with your blower motor if the fan only works by “hot wiring” it…find yourself an auto electric shop in your area…most shops or dealerships don’t know how to diagnose a parasitic drain.

 

Two to three days to kill the battery - that's a big enough draw you should be able to find where the draw is coming from.

You can find the detailed Current Draw Test procedure in other threads - but basically you are going to monitor current flow - and pull each fuse - one by one - till you find the circuit that seems to be causing the problem. If no fuses impact the draw - it could be the alternator or the starter wiring.....

 

If you have the automatic temp control, the blower resistor unit may be bad.

 

It probably isn’t the main issue causing draw but C5’s have known rust issues with grounding points. That’s worth checking out while your poking around.

 

There is a sticky thread on this site titled Battery will not stay charged on my 97 c5 corvette, one of the posts has a video explaining how to check for excessive current drain by measuring millvolt drops across the fuses. The car has to be off for 15-20 minutes before starting the measurements.

 

^ This
It's always preferable to find someone with Corvette experience, but few people genuinely have a grasp of electrical theory and diagnosis. If it was easy, everyone could do it, eh? But, everyone can't do it (mostly because you can't actually see electricity - you need the ability to visualize electric flow) and all the Corvette experience in the world isn't going to help if your tech isn't comfortable with electricity. In your situation, more than anything else, you need to find someone that understands electricity. If you live near a small town, ask your neighbors for a referral. Ask the local hot rdders for a referral (custom cars require custom electrical circuits). Track down some local techs and ask them for a referral. In a small town, all of the techs likely know each other.

When you find someone, download the workshop manual and electrical schematics from the sticky in the General section of this forum and supply it to your electrical tech on a thumb drive. It will save him from scrounging around on the Internet looking for this information.

There is one other option. You can learn this electrical stuff for yourself. There are plenty of electrical theory vids on the youtube. There are also plenty of practical vids on how to check for quiescent drains, voltage drops and etc. Prior car experience is irrelevant, so don't be intimidated. Once you have a decent idea about what you need to do, there are folks here who can hold your hand and make suggestions. You may find that you have a knack for this electrical business. But, in the event that you find that you don't have a knack for it, don't fret. I expect that most professional techs merely get by with their skills and fewer than 25% are particularly gifted at it. Also, you don't need a ridiculously expensive Fluke meter. You can get by with some reasonably inexpensive tools.