I installed my new Hook2-5 yesterday running both the transducer and power cables under the front deck to the unit, which I mounted using a Ram mount.

When I hooked up the power cable and attempted to turn the unit on, nothing happened!  Figured I did something wrong, so I put a volt meter to the cable and got 12.6Volts to the connector. What the heck!!!

Am I missing something? The install guide is useless as it only shows drawings and there is no troubleshooting guide.  Does the transducer cable need to be connected before the unit will power up?  I'm leery about attempting anything as I may inadvertently void the warranty.  I'm heading out this Friday and would like to have this thing up and running.  Lowrance is backlogged with inquiries and may not get back to me before then.  HELP

2 minutes ago, papajoe222 said:

Does the transducer cable need to be connected before the unit will power up?  I'm leery about attempting anything as I may inadvertently void the warranty.

My Hook 2-4, I DID hook up the transducer cable for testing before hitting the water. Not a problem...so I'd say go ahead.

Surprise, I just got a call from Lowrance tech support and the guy walked me through things to check. After all the checking was done and the unit still wouldn't power up. To my delight, they are asking that I return the display AFTER RECEIVING A REPLACEMENT.  I thought for sure they'd want me to return the faulty one first, but I'm guessing the tech walked me through every thing he would have done upon receipt of the faulty one and just put the request through.

Talk about great customer service, the guy even gave me his extension number along with the case number if I run into any further problems!

3 minutes ago, papajoe222 said:

Talk about great customer service, the guy even gave me his extension number along with the case number if I run into any further problems!

I'm looking at upgrading my unit next year - this pushes me more towards another Lowrance.

Did you make sure the cables were seated? The hook plugs on the Hook 2 need some "umph" to make sure they're all the way in the head unit. 

Same reply as Smalls

ive had it not turn on and after checking other things it turned out to be I didn’t seat the power plug all the way

Funny you guys mention seating the power plug all the way in. That was the FIRST thing he asked me.  They must get calls about that on a regular basis.  LOL

I’ve been very aware to seat it completely and I still didn’t get it right