No steam or hot water

Try adding vinegar to the iron to dissolve any built up mineral deposits inside the steam passages. Put the vinegar in place of water, heat the iron and let it sit for 10 or so minutes. Dump out the vinegar and put water back in the iron and heat again. if the water starts sputtering out the steam holes, then repeat the process a few times to clear the passages.

First I'm not a Delonghi tech. But I have worked on similar table top "Super Automatic" machines. You should call your vendor for service as there is no customer serviceable parts in this machine.
*** the following is for information only. ***
* There are usually separate boilers for table top units. There is a pump and heater system for each section. (usually 2 for this type of machine. But there may be a third system if you have the Coco option.
* Since each system is separate then your Latte/cappucino system has a problem. I will list the most common but all require a qualified service tech to repair/replace. (lots of small parts crammed into a very small space.)
* Cap/Latte Membrane button not working. If it feels mushy (not like the other buttons) then the button panel needs to be replaced.
* There is a CPU/PC board malfunction. Replace
* There is air in the water line to the Cap/Latte system. Make sure the water tank is filled. Power down. Wait 10 seconds. Power back up. Press the Cap/latte button to start the pump. Watch the steam wand if water flows out. If it does, then wait 30 seconds and try again. should be steaming.
* No steam or at least hot water? Just cold water? Then the steam heater and/or thermo-fuse, thermo-disk, needs to be replaced.
* Got hot water but little to no steam? Then steam unit and/or thermo disk needs to be replaced. (best to replace both as a whole unit; tank, Heater, and Thermo-disk)
* Heats up very hot but sputters water and steam. Clean steam wand and/or tip (if removable) If it leaks steam at the top of the wand near the body of the machine then the whole wand needs to be replaced.
* Still sputtering? The steam system is clogging up. Call for service.
* Final; I'm not a fan of de-scaling as it causes more problems for the machine. I've always found that using filtered water (bottled ok) is best. Water softeners if available is okay. BUT stay away from HARD water and Ultra Pure (100%) water as it leaches out the metal ions from the machine.
Aloha, ukeboy57

P.S. Since you have already taken things apart, I'm guessing you don't mind jumping to the 'guts'. Your probably looking at a clog at the vibration pump all the way to the hot water (or steam) tip. It can clog anywhere there is water. It may even be the water hose (with filter?) or the water tank. Start from the tank and keep trying to get water to flow through each section. You will need power for this so be careful! There are a lot of you tube vids showing how to check the common vibration pump. Bring your reading glasses as it have very small parts (and don't lose the spring or the small ball!) Good luck! Aloha, ukeboy57

Not sure I understand your question since there are no question marks "?" But assuming you open hot water and nothing comes out. Saeco uses micro switches to activate pump for hot water. Steam sometimes ruin the switch. Open and replace

keep holding the hot water button down until you get a steady stream of water with no air. if you continue to get the error message after the water comes out, you will need to check the flow meter. if water never comes out, you have a leak inside the machine, a pump issue, or a blockage in the water path. That machine uses the same pump for steam and hot water, so if your steam is working, your pump is probably good. Blockages usually occur from not descaling properly. That machine is prone to leak at the hose fittings. the original o rings were black rubber, and failed fairly early. the replacements are red silicone and last much longer.

Do you hear the pump working but no water flows?

You should select hot water (the third button from the right) and the display should say "hot water" at the same time it is saying VENTILATE --- open the steam valve all the way and the pump should start and you should see water from the steam wand.

If you don't hear the pump at all, then that is a different problem.

If you do hear the pump but still don't get any water with the steam valve open, then you need to prime the pump by using a turkey baster or the accordian pump that came with the Titanium to pump water into the valve where water from the tank goes. Remove the tank and use the turkey baster to pump water into that valve while the pump is running and the steam valve is open all the way with HOT WATER selected. the second water starts to come out the steam valve you want to stop the pump (turn the power off or turn the steam knob shut) and put the water tank back on and make sure there is plenty of water in the tank - then start the pump again by opening the steam valve all the way and let it pump water out the steam wand for a few minutes.

You can't manually reset. The machine will have to do it. I had the same problem, two green flashing lights with one red (water) all 3 would just keep flashing and not turn solid. No coffee can be made or hot water. I could not pump prime. The problem was the steam wand was blocked with old milk residue. It needs unblocking or you will never pump prime. I could not unscrew the steam wand...so I let it sink in a glass full of hot water for a few minutes and then turned the water knob counter clockwise to push out the softened residue. After that, everything was good. When water started flowing out of the steam wand, the red light turned off and the green lights turned solid. The obvious answer to why you can't pump prime is there is a blockage somewhere and best to start with the steam wand. --Mabada

There is an air lock in the hydraulic line of the machine, thats why it is calling for ventilate, if hot water valve is open and it is still calling for ventilate, then it is possible that the valve is blocked, it might be at top of the wand or at the tap rod assembly.

hi tried99X. couple of possibilities: have you made sure steam wand is completely clean? allowed adequate time for water to heat? try looking inside: unplug machine, remove the ten screws on the bottom and gently lift away base: it does have wires connecting it to rest of machine so be carefull not to yank on them. locate the hose leading from the pump to the steam-arm (may be hard to see; use a good penlight and a small telescoping mirror if you have to; Autozone & other auto parts stores sell them for a couple of bucks-if you don't want to take off the entire casing of the machine. does the hose look okay?) also see if the pump has vibrated out of position. also, when's the last time you descaled? good luck!

The steam wand has to be removed to be cleaned properly. Unfortunately, this procedure is not outlined in the manual. Just cleaning the wand on the outside or using a clip to clean the tip is not enough.

The other end of steam wand where it connects to the pressuring cabin actually swivels around a fitting. It is this fitting that you need to thoroughly clean. Years of using the machine can cause calcification around this fitting.

If you look under this end of hte steam wand, you should see a philllip-headed screw. Before you loosen this screw, you have to remove the grey trim so that the entire wand can be remove.

Once the entire wand is removed, what I just described will be much clearer.

I fixed my ventilate problem! After 2 days of utter frustration and pushing many buttons, I read another guest comment about resetting to factory settings. Push the up button under the small coffee icon. It should say factory setting with the asterick next to it. Push OK. Then push "yes" for factory settings. Then my machine started working again! Hallelujah! It erased my personal coffee cup setting, but who cares.

Big thanks to the person who posted their solution on Dec. 2007.