Question about DeLonghi DCM485 Coffee Maker

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I have a Delongli EC330S and has reduced it coffee flow to a very slow drip, pump sounds ok, can't see any pipe blockages,I need help

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I have the same problem with the EC330S model.
I can restore the flow by removing the parts where the water comes out. First a metal plate with small holes held by one central screw. Then there is a piece of metal in the middle with a slot in it which can also be screwed out to release a spring with a little plastic domed piece on the end. It seems to be this plastic part which sticks when the flow is reduced.
However I am also looking for solutions because checking these parts only fixes the problem temporarily.

Posted on Feb 06, 2010

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I think I have solved this problem quite simply by buying a new pack of Expresso coffee, it seems that I must have ground the coffee beans I had too finely if that is possible, But it does seem to be working ok now
thanks

Posted on Nov 24, 2009

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Posted on Jan 02, 2017

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I have a 1994 ford Taurus that has new plugs new thermastat new water pump new coil wires but car is still overheating


does putting heater on hot prduce hot air.on full with fan on does it reduce temo?is ur radiator fan coming on? hard to give one answer.as dont know if its overheating in traffic or on the move?there could be air stuck in pipes slowing water flow.or a pipe/radiator blockage so coolant doesnt get to flow around engine so it gets hot.u could check radiator by touching see if hot or cold where pipes enter(prob switch off engine first) try bleeding system squeesing pipes to push air out

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1 Answer

Just dribbling, not filling up with coffee


If the coffee is flowing over the top and not going through the filter holder. into the flask below, check that there is no blockage under the filter holder or if fitted ensure the anti drip under the filter is open this is usually activated by the lid on the flask, which presses this open to allow coffee to fill the flask, when fitted, then to stop the coffee dripping onto the the hot plate below when removed. so ensure any lid for the flask is fitted and that the flask is in correct position on the hotplate to allow coffee to flow through.

I hope this was helpful.

Apr 04, 2015 | Coffee Makers & Espresso Machines

1 Answer

Coffee won't come out of the machine, tried cleaning out the tubes but that just made it worse


You need to advise the model .. but assuming its the CVA 40XX series ... the frist thing to check is the dispenser which has the two pipes comming out of the bottom. This can get coffee residue build up which usually causes 1 or both pipes to have reduced coffee flow. Indication that this is at fault are if the flow is uneven between the pipes or if coffee flows down the outside of dispenser. You can chck this pipework for blocages by openeing door and blowing air though the pipe extending on inside of door. The the dispenser is blocked you need to remove from rear of door and then clean out thoroughly in running water. If this pipework is not and

You need to advise the model .. but assuming its the CVA 40XX series ... here is what I would do;
1. First check is the coffee dispenser on front which has the two pipes coming out of the bottom. This can get coffee residue build up which usually causes one or both pipes to have reduced coffee flow. The indication that this is at fault is if the coffee flow is uneven between the pipes or if coffee flows down the outside of dispenser. You can also check the dispenser for blockages by opening door and blowing air though the pipe extending on inside of the door. The air should flow through easily. If the dispenser is blocked you need to remove from rear of door and then clean out thoroughly in running water.
2. Next check the pump and water path. The pump for the coffee is also used for producing hot water. So if the hot water is working normally then you can rule out the pump. If you not getting hot water then its likely to be the pump or a blockage in the flow through water heater.
3. If above OK then it's a fault with Brew Unit. Follow procedure to remove the brew unit, clean unit and test the air path through both pipes by blowing. Note: When you take out brew unit it not possible to access one of the pipes because its protected by a plastic shield. There is a manual procedure to manipulate the brew unit to expose this pipe so you can blow through it. However the likely cause is not a blockage in these two pipes but the stainless steel filter that the coffee must pass through. You will need an Allen key to remove the bolt holding this in place. Once removed you need to check all holes are free of blockage by inserting a very small wire in each hole. Alternately you can replace this part. If the filter is clogged then you should consider using a different type of coffee as some types coffees cause this problem and others do not.
I hope this helps. regards

Mar 24, 2014 | Miele Coffee System

1 Answer

Slow drip process


Sounds like your on the right path, this is what I would look at next.

Nov 25, 2011 | Coffee Makers & Espresso Machines

1 Answer

I have a De'Longhi EC330S Pump Espresso Maker, 15 Bar it has been making great coffee for a year, but now the seals have blown and water just pours out from everywhere. Can it be repaired?


The problem seals on my EC330S are the one on the steam frother shaft and the connecting pipe from the pump to the boiler. The steam frother shaft seals are available from Buyspares.co.uk but the ones on the pipe from the pump are not available from them even though the pipe is. Mine are leaking badly so will have to look for some from a seal manufacturer if DeLonghi can't supply them.

Feb 09, 2011 | DeLonghi Pump Espresso Machine Stainless...

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Hi, We have just bought a DeLonghi Caffe Treviso. We are not able to get any coffee/liquid to drip out of the filter holder. The problem seems to occur when we are trying to preheat the machine, for...


Sounds like you need to prime the water pump. Remove the filter holder, open the steam knob and then press the coffee delivery switch. Wait for water to flow consistently from the steamer and then close the steam knob. Water should then be forced to flow through the goup head (coffee head). If you cannot get water to flow from steamer then the pump may have already been damaged or it may have been faulty from the start. If water will flow through steamer but not for the coffee, then the group head is blocked. Good luck hope this helps and remember that all machines should be primed like this before use.

Dec 15, 2010 | DeLonghi Perfecta ESAM5500 Fully Automatic...

2 Answers

Our system continues to give a 90 code reading even though we have a big enough filter pump to push enough water through the system. Everything is tight and the system is clean. how do we correct this...


Code 90 indicates that the water flow rate is not high enough for the system to operate properly. This is measured by a white plastic piece hinged from the top of the pipe. As water flows by the plastic piece gets pushed back and up against the top of the pipe so that it touches a sensor. A couple of solutions are as follows or a combination of these:
1) make sure that all pipes and filters are clean and clear. Leaves or other stuff will slow the water flow.
2) check that the clorinator is clear of any blockage or dirt.
3) unscrew the flow meter and pull out to check that the hinge is clean and the plastic piece moves freely.
4) when you put the flow meter back in place try turning it ever so slightly which might make a difference. This has worked sometimes for me.
5) make sure that the clorinator is level. I tilted my unit so that the inlet side is slightly higher than the outlet as an experiment and this works as well since I was trying to get the flow valve to travel less distance.(it's a geometry issue)
6) make sure there is no air stuck in the lines. Try lifting the pipes/tubes to move air out and make sure you bleed your pump to ensure that it is full of water and there is no air trapped here that would reduce flow.
7) try taking any nozzle off the hose going into the pool. These may slow the flow coming into the pool and cause back pressure in the pipes.
8) I have a solar panel with a bypass valve. The clorinator only works when I run the water using the bypass valve so that no water runs through the solar panel. Try running all water only through clorinator with no other devices in line to slow the flow or produce any restrictions.
9) Try running the clorinator but take out the pump filter as an experiment. The filter may need replacing. Taking the filter out should tell you if this is the case if the clorinator works without the filter in place.
10) As a last resort check the flow rate requirements for the clorinator and on the pump you have. The pump may be undersized.

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Gaggia Carezza pump problem


I had a similar problem. Steam was fine, but just a drip out of the group head. The hoses looked fine, so I ended up taking apart the boiler. This really isn't too hard. You need metric allen wrenches size 3 and 5, a pair of channel locks and a screwdriver. You'll have to take all the wires off the boiler, so make sure you mark them before taking first. Remove the four allen bolts from below and you can take the whole boiler out. Removing the four allen bolts on the boiler will allow you to separate it and clean it. Mine was nasty. When I put everything back together, the pump sounded normal and I got normal flow from the grouphead. Hope that helps.

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I have a new Z5 (less than 300 cups) that began dispensing a slow and reduced volume of coffee and also began leaking approx 3 oz of water into the tray after just 2-3 cups of coffee. I have meticulously...


If the grounds are really wet and not looks like a round firm cake, you need to use coarser grist on the grinder. The water in the drip tray is coming from the brew unit. The o-rings are not holding the pressure inside because the sieve is clogged. It could also be that the o-ring are dirty, then the brew unit needs to be disassembled and cleaned.

A good way to controll if the grist is too fine, is to watch if the coffee is just dripping from the outlet. Then try adjusting the grinder until the coffee flows evenly. You can also hear if the pump works harder during brewing.

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