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Ena 9 micro

Error 6, power electronics, ceramic valves

Quieu

July 08, 2019 12:17 pm

Unregistered

I have problems with the machine since today, try it short and sweet
: The machine
was on, I heard it go out automatically in the kitchen. In the afternoon the problem was when the
brewer
was switched on
:- The movable part of the brewing group was at the bottom, so
that the collecting bowl could not be pulled out. - Error 6 in the display and automatic switch-off -
when switching on again you hear
a click, when switching off again you click -

Internet says either the power electronics

or the ceramic valve is defective
.

I
removed the ceramic valve

:- I first pulled a few plugs on the power electronics, then went back in and then the brewing unit went up again so that I could pull out the complete drip tray again.

However,

the error

is still there. -

the two switches switch through correctly (tested after

passage with multimeter

) - the DC motor induces voltage when I turn it (also multimeter)

. Assume that

the complete

ceramic valve is OK.
What's your opinion?
Power electronics?

Live on Lake Constance, absolutely no lime

in the water.

Power electronics cost around 100 clocks in the network, is repair worth

it at all?
Many thanks and greetings

Schlawi

July 08, 2019 02:10 pm

*

Expert

Group: Mitglieder

Posts: 1104

Member No.: 14628

Joined: December 26, 2011

If the driver is broken in the ceramic valve then the valve does not switch.
Best to check that out.
In
the bay you can get the drivers in case it's broken
.

I

don't

know if they fit, though

.

Quieu

July 08, 2019 08:44 pm

Unregistered

Hi, thanks for your quick answer. I'm afraid the coffee's a long time coming. I took the valve apart. The driver is OK. When I had reassembled everything and switched it on, the brewing unit went down again and got stuck. This shows on the one hand that the geared motor is ok:P and that everything is as before mad.gifagain.
The geared motor hums when switching on, it tries to drive the brewing unit either up or further down and gets
very warm.

Suspect it may be the encoder of the transmission system. If I disconnect it and switch it on again, I have behaved the same:

The

buzzing of the gear motor and sometime automatic shutdown, before

Error 6
.Does the brewing unit, the miserable one have a limit switch?

Quieu

July 08, 2019 10:49 pm

Unregistered

New symptom and determines the most revealing.
I removed the brewing unit and switched on the machine. The geared motor rotates and rotates and
does not stop.

Why doesn't he stop?

Schlawi

July 09, 2019 09:20 am

*

Expert

Group: Mitglieder

Posts: 1104

Member No.: 14628

Joined: December 26, 2011

That's normal. The motor has an encoder which measures the revolutions of the Moros. The brewing unit moves up to the stop. This is detected by the machine and then the machine usually knows the position of the brewing unit. If no brewing unit is installed, the motor will rotate forever and at some point fault 8 will appear.

Quieu

July 09, 2019 05:28 pm

Unregistered

Almost - there is a disturbance 6 :-)

Schlawi

July 09, 2019 05:46 pm

*

Expert

Group: Mitglieder

Posts: 1104

Member No.: 14628

Joined: December 26, 2011

Which is due to the ceramic valve. Since you live at Lake Constance and are probably stuck, see if Dicofema can help you.

Quieu

July 09, 2019 07:54 pm

Unregistered

Hi
,one last
objection from me. I'm

wiring the motor and it

's turning nicely.

Then I measure the passage of the two limit switches. My multimeter beeps both periodically, i.e. not permanently, whereby one

beeps

more often or

faster.

For me the valve is in order because on the one hand the feedback of both switches is there and the engine turns.

In

both

directions, by

the way

.

How else would a defective valve become noticeable

?

Then the electronics does not recognize the feedback, or do I have a thinking error?

Schlawi

July 09, 2019 08:18 pm

*

Expert

Group: Mitglieder

Posts: 1104

Member No.: 14628

Joined: December 26, 2011

Does the valve start briefly when you switch on the machine? Or does the message appear immediately after switching on?
Could of course also be that the control has something.


Quieu

July 10, 2019 04:21 pm

Unregistered

The message does not come immediately, only after the engine has worked something.
I have
tested the components several times over
the last few days
.

Ceramic valve with the two

switches are OK.

Geared motor

OKEncoder

also OK, also the lines of the

encoder OKSems to be
really the power electronics
.

Are there any tips on how to test the electronics?