Senseo does not pump

There are no moving parts except for the pump. There might be some contamination in the pump (lime?). As this is a low cost machine, replacing the pump is not worth the cost.

This lookes like a problem I experienced with another model of the Senseo. The problem here was the 470nF X-capacitor in the capacitive power supply. (230VAC models) Try replacing.

Senseo coffee pods are available in a variety of locations both locally and online. If you prefer something local, try Wal-Mart. Otherwise, I have compiled a short list of some online options for you to order from.

http://www.senseo.com/

http://www.ebay.com/sch/i.html?_nkw=senseo+coffee+pods

http://www.coffeepodshop.co.uk/Senseo-coffee-pods-c-253.html

Hi. Who says to use vinegar. I wouldn't use that. Sounds like your pump is not pumping at right pressure. Vinegar can make the lime/calcium build up, break up into too large of pieces. which can block the pump. Descale solution breaks these deposits up. allowing it to be flushed from the system. Dazza REPAIRER

When was the last time you clean it with vinegar? Run vinegar through it and you will see hard water scales that were built on the heater. Coffee makers should be clean out every month then with 2 rinse cycles after that.

Eureka! I have solved this problem.
Disconnect your Senseo from the power. Take it to the sink. Hold it upside down and put hot water in the coffee outled. In less than 30 seconds the senseo will open.

The problem with Senseo is that - especially with coffee holders for 2 cups and chocolate - after making the coffee, the pod holder and the pod cool down. This creates an underpressure, that prevents you opening the Senseo. Hot water will increase the pressure and then you can open the senseo very soon.

This solution was found in despair after struggling with all the complex tool involving (knives, pumps, etc.)

Let me know if it works for you

Hans Beers ([email protected]).

If no good,
Call senseo at 866-4-736-736 866-4-Senseo and describe the problem.if you have purchased or received it as a gift less than two years ago they will send a new one FREE.

I'm thinking it needs to be "Descaled" Heres info from Senseo.com:

Does my Senseo® appliance need to be descaled? Yes. Descaling is an important element in Senseo maintenance. It should be done at least once every three months, up to six times a year!

Keeping your Senseo free of scale will:

• Ensure you have maximum cup volume
• Ensure you have maximum coffee temperature
• Make your Senseo produce less sound while brewing
• Prevent your Senseo from malfunctioning
• Prolong your Senseo's life.

The descaling process takes about one hour and should not be interrupted. Only a descaling agent based on citric acid can be used safely in the Senseo. Other agents, including vinegar, may damage your appliance or not remove the scale entirely. If the procedure is not performed correctly, scale residue may remain in the machine. This causes scale to build up more quickly and may cause permanent and irreparable damage to the machine.

For the right procedure to descale your type of Senseo, see attached document.
(links to attachment at the bottom of this page:
http://www.senseo.com/senseous/Templates/NonAuthenticated/FAQs.aspx?NRMODE=Published&NRORIGINALURL=%2fen%2fSenseoUS%2fServiceAndSupport%2fCoffeeMachineQA%2f&NRNODEGUID=%7b5584237E-F754-477A-BDFE-52A5DC85D35C%7d&NRCACHEHINT=NoModifyGuest#a23

Sounds like resevoir was not seated properly or something is in the resevoir. try pushing the pin on the bottom of the resevoir, do it over the sink, and see if water comes out. if tht works then its internal to the machine. Call senseo at 866-4-736-736 866-4-Senseo and describe the problem.if you have purchased or received it as a gift less than two years ago they will send a new one FREE.

Having dismantled and inspected several of this "strange machines" my conclusion is the following:

There is an oscillating-piston pump inside with in- and outlet valve.
It is energized by a microprocessor controlled circuit for a working time depending on the button selected (1 or 2 cups). The pressure and flow are nearly constant for a perfect working pump.
The pod holder restricts the thruput by its central hole. (E.g. you get now an extra pod-holder with a very small hole for expresso type)

So if you don't get enough coffee it may be that
1) the duty-cycle (timing) of the pump has changed.(not often occurring) no repair, you have to undergo electronic and programming work
2) the pump lost efficiency (cylinder of the pump clogged, piston not working with complete stroke, spring force fadening or just one of the 2 valves leaking) ca be "repaired" after dismantling machine ,extracting pump and taking it apart, success not garanteed - grinding valves is already time spending
so my principle before starting this work is to run the machine without the coffee pod to check the water output, use a new holder with clean central hole, if this works it will be nr.
3) the central hole of the holder is clogged, may be not by limestone, but dried coffee extract (grease) clean with needle or even better with micro-drill