7 questions from our users
my cooler will not work on 12 volts does it have a fuse
Turn my fridge on, was left on for a full day and not even the slightest bit cold. Can anyone tell me what is wrong please
The fan runs on my unit and its been plugged in for hours but not cooling down at all.
Put an ammeter on it and measure the current in the 10 amp range. Might have to go to an auto electrician to do this as a hobby type ammeter will probably deliver an 'out of range error' if it's working properly.
If, however, your $10 multimeter indicates a current draw is minimal, like 600ma or something in the range of what a larger brushless computer fan would draw, then the Peltier device won't be working. If that's the case it will be a 'pull it apart' scenario to see if perhaps a wire has fused a connection.
How many amps on 12 volt does tc 21 draw per hour?
Has anybody a proposal how to dismantle the inner fan? My TC-21FL does not cool well. While the outer fan is running non-stop, I cannot hear anything inside. I thought checking the inner fan but do not know how to access it. Any suggestions?
Easy check - take a flashlight and a phone camera. Stick them in the box, close the lid and you should see the fan come on in the recording. If it does, cool! (har har), if not:
Remove the front panel. There are two connections on the circuit board labelled 'fan'. The one on the right is the external fan, the one on the left is the internal fan. VERY CAREFULLY (so as not to short your power supply) supply 12V to the one on the left (black negative, red positive) and watch/listen to see if the fan comes on. You don't need the lid on for this one because you are bypassing the switch. If the fan still does not come on, go to '1'. If it does come on go to '2'.
1) You need a new fan. The internal bit of plastic seems to be purpose-designed to be non-serviceable. You will have to cut the plastic down each side and pry it open. The will give you access to the fan, and once the fan is removed also to the three screws that secure the bit of plastic in place. Undo the screws, cut away the centre portion of the plastic at the bottom and now you have a removable cover that is secured in place by the plastic tabs at the top and the plastic tabs at the bottom, just not screwed in. You'll have to glue the side bits back on. Incidentally mine was really nasty inside that bit of plastic. Its crazy that Weico haven't made it possible to remove the piece for cleaning. Remove the fan, pulling a piece of fishing line through from the circuit board side so that you can re-lead the wires on a new fan. Buy a new fan from a computer shop for not-very-much money and install it.
2) If the fan DOES come on when you give it power directly then the problem must lie in the circuitry or the lid switch or something. Easiest solution I can come up with is to wire it in with the external fan so that it is always on. You'll lose a bit of efficiency because it will blow cold air out every time you lift the lid but it's better than nothing and provided the box is pretty full (of cold stuff) it shouldn't be too big a current draw. The fan itself only draws 0.22A which should be manageable.
Disclaimer: I'm not an electrician, a Weico aficionado or in any way technically or officially qualified to do this stuff in any way. I'm just a dude with a cool box that isn't working armed with a multimeter, a battery and some bits of old wire trying to bumble my way to a solution
Good luck. Hope this is useful to somebody else.
I have no instruction book
Do I leave on overnight & use it the next day without power of any sort? How long will it stay cold?
I have run on 240 volt and 12 volt each for over 12 hours and has got as far as slightly chilled, why?
Do you have a thermometer to accurately read the inside temperature? Around $30 will buy you a Waeco or Engel, and about $35 will get you a cordless temperature read out model. Anything less is pure guesswork with the inside temperature. I have just finished cleaning out the fluff and dust build up in the electrical end of my TC35. Within an hour, the inside temperature has dropped from 8 to 4.6C and is still falling.
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