General Procedure to save a water-damaged MacBook

Ouch, a watered-damaged MacBook! Maybe someone spilled some water or other liquid onto the keyboard. This is bad! Immediate action is in order, with seconds to spare.

This is how I address a water-damaged device.

TIME IS OF THE ESSENCE!

If it still works, turn it off immediately!
Make sure it is unplugged. Don't plug it back in.
Do NOT try to plug it in or turn it on again. Really.
Open it up. This requires the appropriate precision screwdriver kit. Don't have one? Take it to a shop! Do NOT use the wrong tools.
Disconnect the battery
Mop up any water with paper towels.
Is there water everywhere? Pull out the board and other components to do some further mopping up in the tight spaces.
Put the parts, except the display and battery, in a slightly warm oven (maybe 90 °C, or 190 °F) for 4 hours to help encourage the drying of parts. Water can get under components, we want to encourage that water to evaporate.
Let everything cool, reassemble, and test.

Fixing a SodaStream Jet, part 1: Disassembly Guide

I've had my SodaStream Jet for years, and once in a while something has gone wrong. Disassembly is the first step to repair. Start with this article to see how to disassemble the SodaStream, and then once you have that down, scroll through my other articles to see how I repaired specfic SodaStream problems. SodaStream Jet Disassembly Guide Tools Required Flat head screwdriver Phillips head screwdriver 1. Remove the Carbonator. Duh. 2. Remove the black panel lever The front big black tilt lever needs to be removed first. Removing this panel is tricky, but it isn't impossible. Looking up at the bottom of the black panel, there are two tabs, one on the left and one on the right. These tabs fully secure the panel in place. The trick is to use a flat-head screwdriver under the plastic to gently lever the tabs out of the way. Note in the pictures how I approach these tabs with my screwdriver. I usually release the left side first, and then I release ...

Fixing my Wahl 9918 Groomsman Beard and Mustache Trimmer

Not everyone would bother repairing a $25 beard trimmer, but why not fix something for under $5 instead of spending another $25? My Wahl 9918 Groomsman Beard and Mustache Trimmer has admirably performed its beauty duty for many years, but the time came when the battery just wasn't holding a charge any more. Most people would just put the trimmer in the trash and buy a new one, but I figured I could repair my otherwise excellent Wahl and save some money. In fact, even high priced trimmer and rotary shaver brands, like Norelco and Remington, can be easily repaired using a process similar to the one I used to fix my Wahl. Read on to find out how. I opened up the Wahl by popping off the black plastic faceplate with a tiny flathead screwdriver, which revealed two screws. By removing the two screws I was able to easily open up the unit, revealing the guts of the device. Backplate off, Revealing the screws The internals are rather simple: a motor, a...

Fixing a SodaStream Jet, Repair #2 - Broken Fill Button

My Soda Stream Jet's fill button broke, which means I can not longer carbonate water by pressing the pushbutton. This caused all sorts of grief in my household. Here is how I managed to repair my Jet to give it another 10 years of life (hopefully). First, a look at the button The fill button on the top of the SodaStream is actually a simple lever. Pressing down on the button moves a pin that does the actual work of pressing open the Carbonator's valve. Unfortunately, the axis point is fairly thin and can see a lot of stress. That's where my Soda Stream button cracked. [ I think the usage tip here is "don't over-press the button like a gorilla, it doesn't do anything but put high stress on the button."] Cracked levering point of the button The Pesky Lever Retaining Pin The Fix It was pretty easy for me to replace the button: Take off the back of the Soda Stream and remove the carbonator. Push out the the button lever's steel retaining pin. This takes qu...

Adding a Water Flood Sensor to my Vista-20p alarm system

My Honeywell Vista 20p alarm system is fairly comprehensive, but I want one more feature: an alarm that lets me know when my sump pump isn't working properly. Here is how I added one for about $8 in special parts. I'm afraid of a flood in my finished basement. I'm fortunate - my basement sump pump system is already redundant, with two independent pumps and two outflow pipes. The primary pump kicks in when the water level reaches 6 inches, and if that doesn't work, then the backup pump kicks in when the water level reaches 7 inches. The backup pump should never kick in unless the primary pump is having a problem pumping. But there is a problem with this setup: I might never know if my primary pump has failed, leaving me with no redundancy. I want to be informed when I have one (or god forbid, two) pump failures. My goal is to have my Vista 20p alert me when the sump's water level is ever beyond the point where my primary pump should have kicked in, alertin...

CFL Globes: Good and Bad

Some Globe-style CFLs are sucky. As you know from reading my blog, I'm a fan of not throwing away my hard-earned cash. So it was obvious for me to replace my incandescent bulbs with much more efficient CFL bulbs. My conversion saved me quite a bit of money, but there was one trouble-spot: the CFL globes I installed in the bathroom. I have one of those old-fashioned bar fixtures in the bathroom, designed for a set of three exposed globe-style bulbs, and so only globe style bulbs would look right in the fixture. I use my bathroom quite a bit, and the fixture with incandescent bulbs would normally require 180 watts to power (3 bulbs @ 60 watts each). Replacing them with CFLs seemed like an easy target for reducing electricity costs. "No problem!" I thought, since globe CFLs are readily available in retail stores. My 1980's Style Bathroom Light Bar with Globe CFLs. GE CFL in the center, Sylvanias on each side. I bought a set of three 14 Watt "Commercial Electri...

Robust Installation of an HDHomeRun Networked TV Tuner. 64 OTA channels!

I added an HDHomerun (HDHR) over-the-air (OTA) streaming box to my home network, bringing over-the-air broadcast TV to my computers, phones and tablets. The HDHR is a big upgrade from my previous setup: using a simple "window mount" antenna directly connected to my TV. A TV-attached antenna is good for watching some TV for free, but the HDHR offers so much more flexibility. Figure 0: HDHomeRun on my basement wall My original OTA TV setup was haphazard at best. It was finicky, ugly, and hard for other people at home to use. I would actually tape my antenna to a window whenever I wanted to watch OTA TV. Plus, it only worked on my TV and not with my other devices. I wanted a cleaner and more modern OTA setup. After looking at possibilities, I developed two goals: (1) bring my OTA TV into the modern Internet-connected era, and (2) set it up in a reliable and pretty way so that other family members wouldn't have to fool around with the antenna or anything else. With that,...

The Lance J. Technoweb

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