Machine has stopped working with error given "Brewunit Block". I've tried to take the brew unit out but it appears to have stopped midcycle and so will not slide out.
Is there any way of resetting the machine so the brewunit will go back to it's original position?
You have got the gears out of alignment. You don't really want to take
out brew group unless at end of cycle. You can fool machine to get brew
group back in.
Here is how :
BREW GROUP REMOVAL AND DRIVE GEARS ADJUSTMENT
FOR AUTOMATIC MACHINES
If you ever find yourself in need of removing a Brew Group that has jammed. This will assist you in doing so correctly.
To fix this problem follow these simple steps:
You will need a #1 Philips screwdriver
1.) First, open the door on the machine and remove the drip tray and dredge drawer
2.)
Locate the nickel size hole in the brew group. It will have an "N" next
to it. At the 9 o'clock position, you will see another hole about 1/3
of the size of the first. Directly behind this hole, or about an inch
up depending on the position the machine was stopped in you will see a
single philips head screw. You may have to look around the side of the
brew group to locate the screw as it is not always visible from the
smaller hole. Remove this screw; it holds a small coupling water inlet
(it is similar looking to a tobacco pipe) to the brew group.
3.)
Remove the brew group by pressing/pushing (depending on your machine)
on the part that says “Press" or "Push”. Pull firmly and straight out.
Be cautious to not break the brew unit. Also be aware of the door of
your machine as it can break as well.
4.) With the brew group
out, remove the small coupling water inlet (tobacco pipe) that is
probably still stuck to your machine and reinstall it in the brew group
as it was before. Make sure the screw is installed snugly but not too
tight.
5.) Turn the brew group around so you are facing the
back. Now imagine what a check mark looks like, the top we will call
position A (longer part of the checkmark) and where the checkmark ends
(the smaller portion) is point B. You will notice what looks like a
large checkmark where the coupling water inlet is located. The water
coupling can slide up and down in this checkmark opening. The water
coupling should be in the B position.
REINSTALLING THE BREW GROUP
To
do this, the gears will have to be reset to the start position. In
order to do so, you will have to bypass the three micro-switches (Brew
Group, Dump Box and the Door switch).
Bypassing the micro switches:
1.)
Looking at the back-side of the brew group, not the side that says
"Push" or "Press," you will notice something fin-like or nose shaped.
This piece fits into a keyhole or coin slot looking slot in the machine
and that is where the brew unit micro-switch is located. Take something
like an index card, envelope, or folded up piece of paper, and insert
it into that keyhole so that it will trick the machine into thinking
that the brew unit is installed. Start the piece of paper at the top of
the slot and slide it to the bottom of the slot. The paper should be
thick enough so you can let go and it will remain in place. Leave this
object in there until the following steps are complete.
2.) WITHOUT putting the brew group back into the machine, reinstall the drip-tray and dredge drawer and close the door.
3.)
After doing so you can then turn the machine ON. At this time the gears
will begin moving until they return to the correct start position. At
this point remove the object from the keyhole position and you can now
reinstall the brew group. If the brew group does not go back in
correctly, try a few more times. The machine will return to its home
position. Note: The two large spokes of The brew drive shaft should in
the Up position
At times, the gears in the brew drive assembly will not complete the cycle to the proper
start position for different reasons. Some of the reasons are:
• Brew group jammed or blocked
• Either one of the micro switches in the brew drive have gone bad.
• Brew drive motor Failure.
• Broken teeth on either of the brew drive gears.
• Dirty brew group, covered by coffee grinds.
• Brew group or gears not lubricated.
• Connections to the board from brew drive assy., or motor have gone bad.
A jammed or blocked brew group happens when the brew group starts the cycle but doesn’t finish it.
Because no logical reason the error “BREWUNIT BLOCKED” appears also when the cup heating circuit is open... because heater or fuses are wrong..,
Gaggia should have informed about this anomaly in the net.
So, before you change your Brew Unit or you CPU..,, just check continuity between the two yellow wires... and bingo!
Your machine has stopped mid-cycle.
1. Open the brew group door and look for a screw holding the the coupling to the water inlet, lower left side of the brew group. Remove the screw with a phillipshead screwdriver.
2. Remove the brewgroup by holding the handle and pressing on the "press" button. The brew group will slide out.
3. Remove the water inlet piece left behind from the machine and re-attach it to the brewgroup.
4. Now you must reset the machine. Bypass the three microswitches to the door, the dump box and the brew group by taping them down. Once they are all bypassed the unit will move the gears to the correct position with the two larger cams on top.
Put in your brew group and you are good to go.
If this problem persists you need to send it in for service.
2,795 views
Usually answered in minutes!
×