If you are handy with small electrics, or know someone who is...
I had a similar problem and just solved it.
My cooler was leaking and had trouble keeping the proper temperature.
It was also making a buzzing sound which is what lead me to my solution.
BTW - The liquid that was leaking was condensation, probably because the unit was not holding a constant temperature.
Unplug the unit first - no need to get electrocuted.
These units use peltier cooling- essentially a large heat sink with three fans attached.
for more info regarding peltier cooling.
The peltier unit is not repairable, but the fans are; which was what my problem was.
There are three fans on this unit, one on the inside and two on the outside.
Follow these steps to remove them.
- Remove the rear cover. It is held on with ten screws. This exposes the two exterior fans and the peltier heat sink
- The heat sink is held on with four screws - remove them and pull the heat sink out. The third fan is on a short wire lead, so be careful when removing the heat sink from the body of the cooler.
- The two exterior fans are connected to a control panel, the electrical connection is easy to disconnect.
- Once all of the wires have been disconnected, you can remove the fans from the heat sink.
- The fans are screwed to a mounting plate, which is screwed to the heat sink
- You must remove the mounting plate first to expose the screws that hold the fan to the mounting plate. The fans are typical computer case cooling fans
- I only needed one fan, but replaced all three because I didn't want to do this job again.
- I purchased my fans from Newark.com the prices were better than what I found at the computer websites. Also, these fans are much better than the original and will hopefully last much longer than the three I got from the old ones.
- You need one of these and two of these. The total with shipping was around $30
- You will need to splice the old electrical connection sockets onto the new fans using wire crimpers or solder them on.
- Attach the components in reverse order and power on the unit.
- These fnas may move more air than the originals, because the unit seemed to cool much quicker than I remember.
- Total time for repair is about 45 minutes
Hope this helps and Good Luck