View Full Version : water damage sensors

Dec 23, 2009, 07:59 AM
Anyone know how I can find the moisture damage sensors on a rev b? I need to get a keyboard replaced, but many moons ago a small amount of liquid may have been spilt on this thing and due to 3rd party repairers over here I dont want to take it in and then find out that I owe loads due to it not being covered. So I want to check first to make sure the sensors are not activated.

Dec 24, 2009, 11:16 AM
I wouldn't worry too much about it in advance. Take it in.

You won't be charged a fee if liquid damage is present and you choose to cancel the repair.

Dec 26, 2009, 02:26 PM
Thanks, but in Sweden its a whole different kettle of fish.
I would be charged an inspection / labour fee which could be really high.

Anyone else know how to check for water damage sensor activation?

Dec 27, 2009, 12:21 PM
On MacBook Airs, there are several liquid submersion indicators on the top casing. They can only be viewed once major components (like the main logic board) have been removed. If you do this at home without the proper equipment to keep your computer's components safe, they'll almost certainly be damaged.

The liquid submersion indicators are not the only criteria that Apple-Authorized Service Providers use to determine whether liquid damage is the cause of a particular symptom. If sticky residue, corrosion, etc., is present, damage will not be covered under warranty. Generally, water is harder to detect than other liquids (like wine and soda).

You mentioned you need to have the keyboard replaced. Are some of the keys not working? If some (but not all) of the keys have ceased to function, that's almost always due to liquid damage and a service provider will inspect the machine very thoroughly. You might try VERY CAREFULLY popping a key cap off and looking for sticky residue underneath. If there is no sticky residue, it's incredibly unlikely that the internal liquid submersion indicators are tripped.

Please don't take your machine apart for the purpose of checking the LSIs.