Error Message Service - Rational SelfCookingCenter SCC Training Manual

Error message Service

Display Definition
Service 10 water is not pumped off
during SC-Automatic
Service 11 CDS sensor sends too many
pulses during refilling steam
generator
Service 12 CDS sensor
without signal
Service 13 Steam generator is not
refilled during steam mode
Service 14 Level electrode doesn`t
recognise water;
Service 17 Conflict with external me-
mory SD card
Service 19.1 Conflict with external me-
mory SD card
Service 20 -x- Thermocouple
defective
Service 21 (only Voltage and current moni-
error history) toring on PCB
Service 25 No water flow detected
during CleanJet
Service 26 Drain valve does not find
the open position
Service 27 Drain valve does not find
the closed position
Service 28 Thermocouple B5 above
180°C
Service 29 PCB temperature above
85°C (185°F)
1 - 29
Reason - Remedy
SC pump defective or blocked
Drain hose of SC pump blocked
Check SC pump and hose
CDS sensor not set to 1000 pulses / liter
Air brake valve above steam generator not closing during filling
Check level electrode and water path to steam generator for leakage
CDS sensor defective, but level electrode senses water
Check water pressure, replace CDS sensor
Steam generator is not refilled during steam mode => foced filling
check 0-1 signal of level electrode to PCB
CDS sensor measured enough pulses but level electrode does not sense water
Check water conductivity possibly too low, osmosis water treatment
essential unit data are missing (energy, size, etc)
Run recovery software
Data can not be written successfully onto SD card
Change SD card
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)
1- 18V from T1, 2 - 12V on PCB, 4 - high current MMI, 8 - high current Drain
valve M7, 9 - high current humidity valve Y5
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.
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
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
Indication goes off when temperature below 110°C (230°F)
check if steam element is covered in scale.
Check air filter, cooling fan and control panel gasket
Check for external heat sources
- 67 - V08 en, SCC