Service manual FB 7100 Programming
4 - 86 January, 2005
Sub menu Description
Test FB1 positions Tests that Freshbrewer 1 can move to three positions:
Fully open, Close and Bottom.
To perform the test:
1. Press ‘Sel’. The brewer will move to “Fully open”
position.
2. Press any key to go back, and press ‘Sel’ again. The
fresh brewer now moves to “Close position”.
3. Repeat to go to the “Bottom position”.
If the test is not successful, either the general error
message mentioned at the beginning of this section or
one of the following messages will appear in the
display:
1. “Brewer moved but no switch activation”
Possible causes: Brewer is not working satisfactory.
Disassemble brewer and check. See chap. 5B,
page 5B-4.
2. “Brewer clogged up, filter needs cleaning”
Remove filter plate. Clean, descale or replace filter,
see Operating instructions.
3. “Brewer blocked or not connected”
Possible causes:
- Foreign body stuck between piston and filter plate.
- No tacho received or no current. This error may
arise if the door has been opened and closed again
while the brewer tried to find its position. Otherwise,
check wire connections.
- Wires for brewer disconnected or defective.
- FB print defective, see how print is replaced in
chap. 5K, page 5K-10.
4. “Unexpec. current”
Possible causes: Unexpected current from brewer.
Short circuit of FB1 print or defective FB1 print.
Check print, replace if necessary, see chap. 5K,
page 5K-10.
5. “FB1 short circuit”
Possible cause: Fatal short circuit of FB1 print.
Replace print, see chap. 5K, page 5K-10.
6. “Brewer or IN motor moved unexpectedly”
Possible causes: The brewer or IN motor has made
unexpected movement, e.g. if IN motor has been
turned by hand.
Move piston up Tests that the piston can move to a selected position
(upwards in cylinder).
To perform the test, press ‘Sel’, enter a value between
0 and 255 millimetres to tell the system how far you
want the piston to move. Press ‘Sel’ again to start the
test. Now two things may happen:
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