Douwe Egberts Cafitesse 700, Back Office Manual

Page: 43 / 265

*errors will be logged ** errors will not be logged *** UI-error messages: higher priority overrules lower priority, with same priority message of first appearance is shown
July 2004 3 - 5
No. Description Over-
rules Set condition Reset condition Remarks Cause Remedy Prio-
rity***
20* First boiler flling takes
too long Software calculation
during initial filling (after
startup or
ON /OFF/CLEAR switch):
counts time for an extra
long interval (150 sec. to
fill boiler until normal
level sensor)
After ON/OFF/CLEAR
switch in OPERATOR or
SERVICE mode, the
refilling starts again. Operator resets
error 1. Water supply tap not
open or blocked
2. Water filter clogged or
defective
3. Water pressure too
low
4. Inlet valve defective
5. Hoses clogged or
defective
1. Open or clean tap
2. Clean or replace water
filter
3. Check water pressure
(see chapter 2)
4. Replace inlet valve (see
chapter 5A)
5. Clean or replace hoses
100
21* Boiler water heating is
defective Software calculation:
1. Expected temperature
rise of 5K in the first
15 min. not achieved
2. Heating system
staying on for more
than 45 min.
After ON/OFF/ CLEAR
switch in SERVICE
mode
May occur after
ERR 10 and
ERR 11 1. Heating elements or
relays defective
2. Wiring incorrect or
connections defective
3. Temperature sensor
defective
4. PCB A not inserted
correctly in the rack or
defective
1. Replace heating
elements or relays (see
chapter 5A)
2. Check wiring or replace
connections (see
chapter 5K)
3. Replace temperature
sensor (see chapter 5A)
4. Insert PCB A correctly or
replace PCB it (see
chapter 5K)
115
22* Boiler water temperature
too high Temperature sensor
reading:
measured temperature >
T
set
+7K OR temperature
> 107°C (217°F)
After ON/OFF/ CLEAR
switch in SERVICE
mode AND water
temperature in boiler
within normal range
After changing
T
set
in the
SETTINGS
menu, this error
is ignored for 30
min.
1. Heating elements or
relays defective
2. Temperature sensor
defective
3. Wiring incorrect or
connections defective
4. PCB A not inserted
correctly in the rack or
defective
1. Replace heating
elements or relays (see
chapter 5A)
2. Replace temperature
sensor (see chapter 5A)
3. Check wiring or replace
connections (see
chapter 5K)
4. Insert PCB A correctly or
replace it (see chapter
5K)
100