I had similar problem. I would get blinking red light after 3 seconds of use but only with hot. The cold function worked fine. I googled how to repair this error but it seem everyone had different solutions. I opened up the unit to try to see what could be wrong with it.
1. Check if the metal springs are even. Try to bend them up more so they would touch the heating board better.
2. The heating board has 3 squares where the metal springs touch. Look if you notice any scratches on these squares. If you do it means when then engine starts it shakes too much and it shutdowns. (This was my problem) . I had too much movement between base plate and the plastic frame that holds the engine.
To fix this I used rubber band to make it hold it place. Then I also put in rubber shims where the base plate clicks onto frame that holds the mother board because when I was pressing the frame it still would wabble. ( I guess you could use glue to bond base plate and mother board frame for good.)
3. On the heating plate where the 3 squares are make sure the solder is connecting good to those squares. If it looks that there might be a break in the solder use iron to melt down solder where the connection is to the squares. You can also use a tool to check if connection is good between the squares and electricity goes thru it.
4. Clean your unit good and make sure there is no milk residue on the button of the jug. Clean it with soft cloth because if you scratch the bottom of the jug you might damage it for good.
These 4 problems where the most common ones I found when they had red blinking light errors. I hope this will help you to troubleshoot your unit.
Problem: the unit is overheating and the thermostat will soon go out. its common and can be fixed
tools: security-screwdriver-bit-set-102 or flat head or three paper clamps
parts: use a stronger thermostat 250v 5a 115 celsius
SOURCE: I have an Nespresso Aeroccino
Sorry, but it looks as though you have the classic Aeroccino-problem. Nespresso states that leaving the Aeroccino on its base while it is plugged-in to the wall, will cause it to short-circuit (because there is no off-switch on the base, it is continually feeding full power to the frother), and the result is that it makes only warm milk. Replacement is the only solution...I hope you are still under warranty.
SOURCE: not making froth
Had the same problem, but called Nespresso. Their tech suggested the following: 1) always leave off the base - will stay on even if button not pressed 2) invert the Aerocinno for 24-48 hours to "reset" the thermostat in the device. I began leaving the base plugged in, but immediately after using and cleaning (don't get ANY water in the bottom of the machine!), I invert the Aeroccino and leave it that way. My machine began making great froth with any tyoe of milk, and continues to do so a month later -
Sounded crazy to me initially, but it works.....Never returned the device, and no need to do so now - Good luck!
SOURCE: aeroccino deosn't make froth
Our aeroccino worked fine for 2 years and suddenly it didn't made foam anymore. We tried the "inverting trick" without much success. We contacted Nespresso and they suggested switching from regular fresh milk (we used 2%) to UHT milk (harder to find in US) and to use it cold and freshly opened. So we tried that and it works.
Hope this solution works for you too
SOURCE: red light flashes
It means that the paddle has come off of its post and thus is no longer frothing the milk.
SOURCE: My Aeroccino doesn't froth the
We had the same problem and it could be that you need new whisks. If you phone Nespresso they will send you out new ones (one of each).
Betteboo
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