Douwe Egberts Cafitesse 700, Back Office Manual

Page: 44 / 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 - 6
No. Description Over-
rules Set condition Reset condition Remarks Cause Remedy Prio-
rity***
23* Water temperature too
low (drink quality) Temperature sensor
reading below or equal
82°C Automatically when
temperature has reached
T
set
Drink delivery is
blocked until
error is reset.
This can be
disabled Not enough heating
capacity 1. Use internal elbows
2. Increase heating
capacity (3-phase
connector or pre-heater)
100
24** Water temperature too
low (hygiene block) Temperature sensor
reading below or equal
60°C Automatically when
temperature has reached
T
set
Dispensing is
blocked, this
cannot be
disabled - - 105
25* Water temperature
sensor defective 22, 23
24 Temperature sensor
reading (measured
temperature below
0°C (32°F) (>16400
Ω
) or
above
107°C (115°F) (<280
Ω
))
Automatically when
temperature reading is
within limits 1. Temperature sensor
defective
2. Incorrect wiring or
connections defective
3. PCB A not inserted
correctly in the rack or
defective
1. Replace temperature
sensor (see chapter 5A)
2. Check wiring or replace
connections (see
chapter 5K)
3. Insert PCB A correctly or
replace it (see chapter
5K)
120
26* Boiler bottom is scaled
up Software calculation After ON/OFF /CLEAR of
the dispenser
This is a
warning –
delivery is not
blocked Boiler is calcified Decalcify boiler 10