My wac 7500 has power but wont light up or start. None of the buttons have any response including the power button.

First, just press and release the power button, you don't have to hold it in.
second, is your battery fully charged?
third, red wire to positive terminal, black wire to negative.
These are obvious things to check, but sometimes the simplest answer is the solution.
Did you install the fuse holder included with the unit? If so dI'd you put in the 3 amp fuse?
If none of these things work, call lowrance. I work in retail and have experienced taking brand new units out of the box and upon hooking them to power discover they were dead. Defective straight from the factory.
Good luck.

Get in touch with Philips support: http://www.support.philips.com/support/contact/contact_page.jsp?userCountry=ca&userLanguage=en

I think you should search for a reset button, beware you loose probably all settings

defective touch pad depending on how old the unit is if your going to fix you might want to call a technician

Is there a light indicator beside the switch button indicating there is a electric current coming in? It should light when youpress the power on button, If none, better check the power supply or the fuse at the back

try to shut it down.....unplug the computer

check battery for full charge and tight cables.use test light check for power to starter when pushing start button.if there is, check starter. if none check for power to start solenoid on small wire going to it w/ testlight when you press start.if none, check start button, & wiring.if youi have power to it,but no start, take large screwdriver & make contact between both solenoid cable posts,make sure bike is in neutral. should crank, confirming that solenoid is bad.also, even if the solenoid has no power going to it to energize it you can still use the screwdriver trick to get bike to crank.

You have the control lock activated. Press and hold the heated dry pad for 5 seconds and it should unlock it

You've either got a short from faulty manufacturing or possibly from moisture entering your unit. Or the wiring may be faulty, if you know how take the unit out and examine the wiring; make sure the wires are all taped with electrical tape and that no bare wires exposed or touching. If everything looks ok then you might as well just exercise the warranty. They come with a 1 year warranty from Dual.

hi this meens the wohle panel is squashed on its buttons the seek button is main 1 and wont let anything work besides it take out the button release the screws all the way jiggle it a little bit, or even take a look inside that nothing is broke or loose tightened the screws but not hard(soo it wont happen again) good luck