Question about Philips Senseo HD-7810 Coffee Maker
Three way valve is broken and need to be replaced
Posted by Anonymous on
SOURCE: Senseo coffee maker
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
Posted on Jan 06, 2009
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.
Posted on Feb 03, 2009
SOURCE: stuck senseo maker
The locks shut due to a pressure build up in the pod chamber usually caused by a blocked filter in the centre of the pod holder.
The only way to open the unit is to releive the pressure. The pressure will normally reduce over time, the duration being determined by the pressure build up, condition of pod seals and the strength of the blockage.
A quick DIY solution: (small cable tie and screwdriver required)
Un plug the unit from the mains:
Remove the water container and prise open the rear snap fit panel of the unit carefully using a screwdriver to expose the internal workings, the overflow pipe at the top of the cover must be disconnected to gain enough access to work on the unit.
.The small metal boiler in the centre of the unit is used to heat the water for the machine, if the boiler is still hot allow it to cool down sufficiently for work to commence.
The exit pipe at the top of the boiler feeds directly to the pod chamber, if you squeeze this pipe you will feel that it is under pressure. Cut the cable tie connecting the pipe to the boiler (be careful, dont cut the pipe) and remove the pipe to release the pressure, a small ammount of water will be released during the procedure. The lid should open.
Reconnect the pipe to the boiler replace the cable tie, refit the rear cover making sure to push the overflow pipe back on before you snap the cover shut.
Remove the pod holder and clear the blockage blow through the holder in the reverse direction to ensure the filter is clear.
Replace the pod holder and pour a small amount of water on to it. The water should exit through the delivery spouts if the path is clear.
Posted on Feb 23, 2009
Believe it or not, vinegar is a blessing for cleaning nearly anything out of your coffee maker.
Fill your water reservoir 1/4th full with vinegar, then fill it the rest of the way up with water.
Run the coffee maker, then let it sit for about 10 minutes. Pour the mixture back in to the reservoir and run it again. Let it sit another 10 minutes.
Dump the mixture and use plain water this time. Let it sit for another 10 minutes. Dump the water, then repeat with clean plain water.
Wash the filter basket and pot with hot soapy water. If the vinegar smell is still present, just run it again with plain clean water.
Posted on Oct 10, 2009
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