The switch is not stuck mechanically but does not light up. I was using it just prior and I then cleaned the steam spout without shutting it off and returned to the machine to use it again and the lights were off and now will not turn on again. Is there a safety switch incorporated? I would love a coffee right now. Thanks
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Hi, I dont know which brand machine you have, but I should be able to work out what is wrong. If your machine has a press button or turn knob steam tap, then it could be the solenoid which opens the steam flow. The solenoid itself maybe stuck or the coil maybe faulty. You just need to work back from the steam arm to work out which solenoid it is. It should make a clicking sound when activated. Commercial machine solenoids canbe disassembled and cleaned. If its a domestic machine, then just replace the solenoid. Also, some machines have a micro switch that activates the steam valve. If its faulty, then replace it. If its a domestic machine you have, then another thing that maybe at fault, and that is the thermoblock (small boiler). If it doesn't heat up then no steam canbe made. The thermoblock has an element inside, and they can not be replaced. You have to replace the whole thermoblock. It can be easily checked with a multi meter to see if the circuit is broken. On some thermoblocks, is a thermostat or overload sensor. It is also easily checked with a meter. So lets break it down a) solenid b) micro switch c) Thermoblock d) thermostat/ thermol overload Hope this has help you. Id be looking towards the thermoblock. Dazza
This is hard to picture. The only way water can come out the brew spout is if the brewing mechanism inside in the position to make coffee. The only way to get that mechanism into that position is to either select one of the three coffee buttons (you'd hear the grinder run, then you'd hear the motor putting the brew mechanism into place and then the pump start and water would then come out the brew spout. OR to select preground coffee and then select one of the three coffee sizes - in that case you wouldn't hear the grinder but you'd still hear the motor turn the brew mechanism into brewing position and then start the pump.
When you simply select hot water and then open the steam valve - I can't imagine any possible way for water to come out the brew spout.
Now if you mean that you don't see any water come out but water is leaking inside the cabinet and ending up in the drip tray - then that would mean a leak inside the machine. It could be the valve that the brew group locks into when it goes into brew position (you see this valve in a little recess behind the brew mechanism when you take the brew group out to clean it). Or it could be a leaking steam valve or hose inside.
You might try getting a flashlight and a cleaning brush - take out the brew mechanism and then clean around that little nozzle/valve that is in the recess just the left of center behind where the brew mechanism was. That valve should shut when you are not in brew position and not allow any water out - but it may be gummed up with coffee grounds.
If you are feeling brave - you would need a deep socket and a lot of patience with a small breaker bar (a ratchet head is too big to fit in there) and you can remove that nozzle/valve and then clean it or replace it. But it is very slow going to remove it (there must be some special tool they use at the factory). I had just the right size deep socket (like what you'd use for a spark plug in a car) but there wasn't room for a ratchet so I had to use a small breaker bar and I could only turn the valve about 1/4 turn at a time then I'd have to reposition the socket to do another 1/4 turn. It took 5-10 minutes to remove it - then it was easy to clean. I think you could clean it in place with a stiff bristle brush and some q-tips.
I don't know if that valve is the problem - but that's the only thing I can think of that would have your hot water and steam running into your drip tray instead of out the steam wand.
It seems that the steam solenoid valve is stuck open. This can be because of a small part from water usualy scale or lese is stuck in bettween the solenoid valve rod, or the whole valve rod is full of scale so it can not move. You can open the valve an by using a wire brush you can clean all the parts and the valve can work perfect again. If the valve is rusty or full of hard scale then you need a new one.
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The only thing that comes to mind is that the machine is in steam/hot water mode. Unless you replace the switch and turn off the steam light so that it sends the water to the correct location. Also you might want to remove the shower screen and make sure it is clean.
Try this, open steam wand, if it calls for ventilate pusi in steam knob, if that works then the tap rod on the steam valve needs to be replaced. To me it sounds like the machine is building up pressure and the discharge is not releasing through the water circuit.
This may be something you can fix. It depends on your comfort level with mechanical repairs. You probably need to replace some o-rings in the steam valve. Don't keep trying to brew or steam because leaking water or steam inside may cause an electrical short. Decide if you want to delve into the repair, or locate a repair center near you. I could put you in touch with some.
I have had similar issues with my 40729. Assuming that when you turn on the steam switch, the steam light goes on and then off when up to temp: I have resolved this by filling my steaming pitcher with boiling water, remove the end-cap from the frothing wand and soak the end of the steam pipe in the hot water for several minutes. Then fire up the steam and blow it out. if the obstruction is more serious, then you may need to unplug the machine and run a thin and stiff wire ( like a guitar string ) up through the wand to break up the clog.
This unit uses one heater for both the extraction and the steam, so if you are getting extraction then the heater is good. You may also have either:
a bad needle valve in the steam knob on the right.
a bad thermostat that regulates the heater temp when you turn on the steam switch.
sounds like there maybe a vapor lock problem... where there is a problem with the hosing... or vaccuum-like mechanics inside of the machine... Perhaps even there is "gunk" or milk stuck in the steam wand. you have a few options... get a milk pitcher that reaches almost to the top of the steam wand and fill it with ice and water. Allow it to soak for a period of time until, say, there is a decent amount of condensation that has gathered on the outside of the cup. then clean the inside with something that can reach and is non-abbrasive... *a straw may work* clean it out manually... then soak again. try opening the steam wand again and let it steam in the water... if it's not working... preform a cleaning cycle... and include a 'smigin' 1tsp. or 1 tbsp. of vinegar in the water resevior. and let it run all the water through the steam wand... if possible. if it is still posing a problem definantly contact warranty services... or seek a saeco tech in your neck of the woods!
hope this helped!