Rational CombiMaster Plus CMP User Manual

V08 en, SCC - 68 -
Error message Service 30 - 44
Display Denition Reason - Remedy
Service 30
(only error
history)
humidity control not
working properly
humidity control via P1 not working.
no humidity control above boiling point
Steam is controlled via B2 quenching sensor (bypass control)
Check P1 and B4 in diagnostic mode
Service 31.xx Core probe faulty Most cooking processes do not work with defective core probe!
31.1: sha probe 31.2- 5th probe (close to sha)
31.4: 4th probe 31.8: 3rd probe
31.16: 2nd probe 31.32: 1st probe in tip
- Combination of faults possible i.e.: 10 -->2+8)
Change core probe
Service
32.0-1-2
no ame detection aer
ignition
0 - top, 1 - bottom, 2 - both
Only change ignition box when gas error 33, 36, 39 or 42 happened more
oen than 5x
refer to gas error list
Service
33.0-1-2
no ame detection aer
ignition
- Appears aer 3x Reset command without positive result
- 0 - top, 1 - bottom, 2 - both
- Check ignition wire, ignition box, gas valve and gas supply.
refer to gas error list
Service 34.xx Bus signal does not res-
pond to PCB
Bus cable, bus component or power supply to bus component faulty
34.1: Motor top 34.2: Motor bottom
34.4: Ignition module top 34.8: Ignition module bottom
Combination of faults possible i.e.: 10 -->2+8
Check power supply and LED ON
Check jumper on oor unit bottom motor and ignition box
Change bus connection sequence
if error message changes bus cable is defective
if error message remains the same, component is defective
Service 35 Ultravent does not process
bus signal
Ultravent PCB not processing bus signal
Check power supply to UV
Blinking LED means power supply and PCB ok.
Service 36 Dierential pressure sensor
P1 defective
No oset signal (0.5V)
P1 must be installed horizontally!
Check 12Vdc power supply to P1, plug,
Change P1
Service 37 Dierential pressure sensor
P1 out of range
Dierential pressure sensor P1 not in expected range,
check connection / blocking of P1 hoses.
Service 40 Care pump doesn`t pump
enough volume into steam
generator
Care pump blocked or defective or hose from care pump to steam generator
(partially) blocked
Check care pump in function test - Caution: Y4 is active at the same time, care
container might overow when activating too long.
Check if the hose from the care pump outlet is not kinked;
Reset error by successful completing rinse program;
Service 41 no water ow when Y3 is
active during CJ+C
Solenoid valve Y3 defective or moistening nozzle and connecting pipe is blo-
cked; CDS does not send any pulses;
Check Y3 in function test, Remove nozzle (15mm), decale nozzle and clean pipe
from scale deposit. Rinse pipe in function test Y3 before mounting nozzle back.
Reset error by successful completing rinse program;
Service 42 no water ow when Y4 is
active during CJ+C
Solenoid Y4 Care defective or hose to care container blocked or kinked; CDS
does not send any pulses;
Check Y4 in function test,
Reset error by successful completing rinse program;
Service 44 No steam heating during
CJ+C
No temperature raise above 60°C (140°F) recognised by B1
Check SSR
Reset error by successfully completing rinse program;

Rational CombiMaster Plus CMP Specifications

General

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