Rational CombiMaster Plus CMP User Manual

- 67 - V08 en, SCC
Error message Service
Display Denition Reason - Remedy
Service 10 water is not pumped o
during SC-Automatic
SC pump defective or blocked
Drain hose of SC pump blocked
Check SC pump and hose
Service 11 CDS sensor sends too many
pulses during relling steam
generator
CDS sensor not set to 1000 pulses / liter
Air brake valve above steam generator not closing during lling
Check level electrode and water path to steam generator for leakage
Service 12 CDS sensor
without signal
CDS sensor defective, but level electrode senses water
Check water pressure, replace CDS sensor
Service 13 Steam generator is not
relled during steam mode
Steam generator is not relled during steam mode => foced lling
check 0-1 signal of level electrode to PCB
Service 14 Level electrode doesn`t
recognise water;
CDS sensor measured enough pulses but level electrode does not sense water
Check water conductivity possibly too low, osmosis water treatment
Service 17 Conict with external me-
mory SD card
essential unit data are missing (energy, size, etc)
Run recovery soware
Service 19.1 Conict with external me-
mory SD card
Data can not be written successfully onto SD card
Change SD card
Service 20 -x- Thermocouple
defective
thermocouple defective.
20.1=cabinet B1
20.2=control B2
20.4= humidity B4
20.8= steam generator B5
(e.g. 20.12 = B4 + B5)
Service 21 (only
error history)
Voltage and current moni-
toring on PCB
1- 18V from T1, 2 - 12V on PCB, 4 - high current MMI, 8 - high current Drain
valve M7, 9 - high current humidity valve Y5
Service 25 No water ow detected
during CleanJet
during CleanJet+Care the fan motor does not an increase in power demand
when water hits the fan wheel. -
check water pressure, water supply, moistening valve and nozzle and CDS
sensor.
GN racks or trolley properly inserted.
Service 26 Drain valve does not nd
the open position
Micro switch drain valve not working properly
Initialise drain valve in basic settings, water, Cleanjet/Care, drain valve
time ration should be 1/4 : 3/4, e.g 9:27 sec or 6:18 sec.
test drain valve in function test
if drain valve not working change drain valve assembly
Service 27 Drain valve does not nd
the closed position
Micro switch drain valve not working properly
Initialise drain valve in basic settings, water, Cleanjet/Care, drain valve
time ration should be 1/4 : 3/4, e.g 9:27 sec or 6:18 sec.
test drain valve in function test
if drain valve not working change drain valve assembly
Service 28 Thermocouple B5 above
180°C
Indication goes o when temperature below 110°C (230°F)
check if steam element is covered in scale.
Service 29 PCB temperature above
85°C (185°F)
Check air lter, cooling fan and control panel gasket
Check for external heat sources
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Rational CombiMaster Plus CMP Specifications

General

Brand	Rational
Model	CombiMaster Plus CMP
Category	Commercial Food Equipment
Language	English