Caple SO209WH User manual

SO209WH
Caple Steam Oven 460mm
Service Manual

7
Steam Oven Service Manual
Models SO109 – SO209
This document has been published to be used for service only.
The contents are subject to change without notice
CONTENTS
1. SERVICING REQUIREMENT
S
1.1 HEALTH & SAFETY
1.1.1 Electrical Safet
y
1.1.
2
Good Working Practice
s
1.1.3 Insulation Test
1.1.4 Sheet Metal Edge
s
1.2 SPECIAL TOOLS & MATERIALS
1.3.1 Tool
s
1.3.
2
Necessar
y
Measuring Instrument
2. TECHNICAL OVERVIE
W
2.1 OVEN SPECIFICATION
S
2.1.1 Oven Weight
2.1.
2
Power Ratin
g
2.2 SERIAL PLATE
2.2.1 Location
2.2.
2
Model and Serial Number
2.3 COMPONENT SPECIFICATIONS
2.3.1 Heating Element
s
2.3.2 Motors
2.3.3 Electric Components
2.4 SYSTEM DESCRIPTION
2.5 TEST PROCEDURE
2.6 FAULT NUMBER
S
2.
7
OVEN SAFETY FUTURE
S
2.7.1 Child – Safe Locking System
2.7.
2
Safet
y
Thermostat
s
2.8 CLEANING PROCEDURE OF STEAM CIRCUIT
4. TROUBLE SHOOTING GUIDE
4.1 ERROR MESSAGE
4.2 OVEN DOESN’T WORK

4.
3
COOLING FAN PROBLEM
S
4.4 CONVECTION FAN PROBLEMS
4.5 OVEN LIGHT PROBLEMS
4.6 DISPLAY PROBLEMS
4.7 DOOR HINGES PROBLEMS
4.8 BAD COOKING PERFORMANCE
4.9 STEAM PROBLEM
7. COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDUR
E
7.1 OVEN REMOVAL
7.2 COOLING FAN MOTOR SUBSTITUTION
7.3 OVEN DOOR REMOVAL
7.4 CONVECTION FAN MOTOR SUBSTITUTION
7.5 RING ELEMENT SUBSTITUTION
7.6 GRILL ELEMENT SUBSTITUTION
7.7 BOTTOM ELEMENT SUBSTITUTION
7.8 DOOR GASKET SUBSTITUTION
7.9 SAFETY THERMOSTATS SUBSTITUTION
7.10 TEMPERATURE PROBE SUBSTITUTION
7.11 DOOR HINGES SUBSTITUTION
7.12 ELECTRONIC CONTROL BOARD SUBSTITUTION
7.13 LIGHT BULB SUBSTITUTION
7.14 LOAD & DRAIN PUMP SUBSTITUTION
7.15 STEAM GENARATOR SUBSTITUTION
7.16 WATER SOFTENER SUBSTITUTION
7.17 WATER COUNTER SUBSTITUTION
7.18 DOOR SENSOR SUBSTITUTION
7.19 DOOR EXTERNAL GLASS SUBSTITUTION
7.20 DOOR MIDDLE GLASS SUBSTITUTION
7.21 DOOR INTERNAL LABYRINTH GLASS SUBSTITUTION
7.22 DOOR INTRENAL LABYRINTH GLASS GASKET SUBSTITUTION
7.23 GLASS CONTROL PANEL SUBSTITUTION
7.24 DOOR MAGNET SUBSTITUTION

Servicing Requirements
1.1
Health & Safety
Note: When servicing the oven, health and safety issues must be considered at all times. Specific safety issues are listed below with their appropriate icon. These are
illustrated throughout the service information to remind service people of the health and safety issues
1.1.1 Electrical Safet
y
WARNING! TO AVOID ELECTRIC SHOCK!
Do not attempt to service this oven without suitable training and qualifications.
Though it is free from danger in ordinary use, extreme care should be taken during repair.
BEFORE TOUCHING any parts of the oven, always remove the power plug from the outlet.
Ensure the main power has been disconnected before servicing any part of the oven. If the power is required to be on for electrical fault finding, then
extreme care should be taken not to make contact with electrical components other than with testing probes.
Ensure the oven is turned off when removin
g
an
y
electrical component or connection.
1.1.
2
Good Working Practices
Ensure the work areas are kept tidy and free of hazards while servicing the oven. On completion of the servicing, ensure the oven and work areas are left
clean and tidy.
1.1.
3
Insulation Test
Megger test to check insulation.
1.1.
4
Sheet Metal Edges
When working around cut sheet metal edges use appropriate gloves or protection to eliminate the chance of receiving a laceration.

Servicing Requirements
1.2
Special Tools & Materials
1.3.1 Tools 1.3.
2
Necessary Measuring Instruments
z7.5V Power Screw / Nut Driver Recommended
z3” socket extension bar
z7mm socket
z10 mm socket
z12mm socket
zFlexible shaft socket extension
z#1 and #2 Short Phillips Screw driver
zDiagonal pliers
zLong nose pliers
zFlat blade screwdriver
zVinyl insulation tape
zPolishing cloth
zTESTER (VOLTS-DC, AC, Ohmmeter)
zGlass thermometer: 100°C or 212°F (1 deg scale)

Technical Overview
2.1
Oven Specifications
2.1.1 Oven Weight
lbs /Kg =79/36
2.1.
2
Power ratin
g
TECHNICAL DATA
MULTIFUNCTION OVENS Electrical Ratings and Maximum Connected Load
@
220-240 Volts 50Hz
A
mperes Watts
SO109 – SO209 13.9 3200

Technical Overview
2.2
Serial Plate
2.2.1 Location
The product serial number plate is located on the bottom frame.
2.2.
2
Model & Serial Number
The numbers printed on the plate contains the following information:

Technical Overview
2.3
Components Specifications
2.3.1 Heating Elements Volts Freq. Watts Note
Grill 230 -- 1500
Ring (if present) 230 -- 1500
Bottom 230 -- 300 (Temperature limiter 240V 10A T250)
Boiler heating element 230 800
2.3.
2
Motors Volts Freq. Watts Note
Convection Fan 220-240 50/60 22 CL H
Cooling Fan 220-240 50/60 30 CL H
Pump for 50Hz 230-240 50 21 CL 155
Pump for 60Hz 220 60 17 CL F
2.3.3 Electric Components Volts
A
Watts Note
Lamp 230 -- 25
Pump self resetting thermal-
cutout 250 -- -- T175
Safety Thermostats 250 16 -- T 250
Water flow sensor 4.5÷24 Vdc Max
20mA -- T 65

Technical Overview
2.4
System Description
zELECTRONIC CONTROL. The control consists of a main power board and Full Touch Keyboard.
zCOOKING MODE & TEMPERATURE SELECTION. The Multifunction oven is full touch control for the set cooking modes and set temperature.
zTEMPERATURE SENSOR. There is one NTC sensor, fixed on the top of the internal cavity.
zHEATING ELEMENTS. Several heaters are available in the multifunction steam ovens. They are combined together in different ways, depending on the
selected mode, but the maximum power never overtakes 3200W.
{GRILL ELEMENT 1500W at 230V.
{RING ELEMENT 1500W at 230V.
{BOTTOM ELEMENT 300W at 230V.
{PUMP HEATING ELEMENT 800W at 230V.
zCONVECTION FAN. This fan is available in multifunction cavities; it works always at the same speed in all convection modes, dehydrate.
zCOOLING FAN SYSTEM. A cooling fan keeps the internal parts temperature within acceptable values.
zOVEN LIGHTS. Halogen 230V lamp. They turn on when a cooking mode starts.
zSTEAM SYSTEM. The steam ovens incorporate a steam generator that allows steam to be injected into the oven at the start of the baking process.

Technical Overview
2.5
Test procedure Steam Oven Control
IMPORTANT: The MANUAL TEST procedure can be activated only after power on.
To enter in the MANUAL TEST follow the following procedure:
a) NEW CONTROL BOARD (unprogrammed): When the oven is plugged in to the power the language mode appears to the
display Holding simultaneously the & the control switch in the Manual Test procedure (its takes about 30 seconds to
enter in this mode).
b) CONTROL BOARD (programmed): When the oven is plugged in to the power the DEMO mode appears to the display, PRESS
to exit .
2. Holding the the control switch in the Manual Operation (the steam oven have to be completely cold).
3. Check (by amperometer or wattmeter) the power in the function selected and proceed to the next function until the verifying the change in light of the
selected icon.
4. During the steam cooking function the following parameters should be checked:
1) Hold key (Steam 100): the cooling fan switches ON; Verify immediately the power (1800W)+(50aux);
2) The function have to run for 5 minutes. Check that the function steam is ok and the steam generator works properly.
3) Hold and proceed with water circuit discharge following the display indication.
4) When this operation ends close the door.

5. During the traditional coking functions the following parameters should be showed:
5) Hold key (ON/OFF)
6) Hold key Ring: preset 165°C; Verify the power (1500W)+(50aux);
7) Hold key Ring + Grill: preset 210°C; Verify the power (3000W)+(50aux);
8) Hold key Convection Grill: preset 165°C; Verify the power (1500W)+(50aux);
9) Hold key Grill: preset MAX°C; Verify the power (1500W)+(50aux);
10) Check all function keys.
NOTE: During the manual test the cooling fan operates only in some functions.

Technical Overview
2.6
Fault Numbers
Faults N°
Temperature sensor disconnected or shorted. Err 1
Door micro switch open (if present) Err 2
Electronic boards over temperature (more than 85°C) Err 3
Electronic boards sensor temperature damaged Err 4
Flexible key board damaged Err 5
Anomaly probe Boiler Err 6
Anomaly in the temperature boiler Err 7

Technical Overview
2.7
Oven Safety Features
2.7.1 Child
–
Safe Locking System
This future can be is used on the operating mode in the household where a minor is present to prevent children from possibility to change the oven setting.
The key function is activated/deactivated by pressing the ON/OFF button for at least 3 seconds.
You can activate and deactivate the operating mode of the oven at any time.
2.7.
2
Safety Thermostats
This appliance is built with bi-metal mechanical thermostats. The thermostats are mounted in contact with the metal sheet .
The function of the safety thermostat is to protect the of the oven from overheating in the event of a malfunction of the cooling fan.
In the event that the temperature is rising over the limits, the thermostat will switch mechanically from off position to on position and all of the heating
elements will be cut off from the power. All of the electronics will be still powered.
The reset is automatic when the cooling fan was replaced or the cooling fan problem was solved and the temperature is in the right functioning parameters.

Technical Overview
2.
8
Cleanin
g
p
rocedure of Steam Circuit
To enter in the CLEANING PROCEDURE follow the following procedure:
a) Turn on the oven with the key Select the CLEAN program.
The following screen appears on the display:
b) Using the keys select “STEAM CIRCUIT”. At this point, when you select the START key, which is flashing, the program that
cleans the inside of the CIRCUIT will start.
You will see
once you have turned it on (if you have already turned it on, its also OK), press
START for the second time to start the cleaning cycle.
Several minutes after the start, the oven will have ended the program. A beep will
alert you and the following text will be displayed:
With the door open, the beep is blocked.

Afterwards, with the oven off, it will display together with the beep:
Open the door and remove the tray:
After partially extracting the tray (look at the arrow on the left side or the two
notches above the carafe), press START to empty the steam production circuit
and
the following text will appear:
After discharging, the following text appears:
IMPORTANT NOTE
If the electricity is interrupted during one of the cleaning cycles, when it comes back on, the oven requires you to empty the circuit even though there shouldn’t be any
water in it. This oven is the only one of its kind that has no need for decalcifying products to keep the steam production systems working properly.

BEFORE TOUCHING any parts of the oven, always remove the power plug from the outlet.
Troubleshooting guide
4.1
Error Message
Code Error Description Possible Cause Corrective Action section
ERROR 1 Temperature sensor
disconnected or shorted. The control reads out of range values. Bad connection Temperature sensor broken. Check the connectors and the harness Replace the sensor 7.10
ERROR 2 Door sensor open Hardware failure. Door sensor broken Replace the door sensor 7.18
ERROR 3
Electronic boards over
temperature (more than
85°C)
Overheating of the
internal parts. Cooling fan broken Replace the cooling fan 7.2
Bad connections between cooling fan
and electronics. Check connections --
Air flow through the cooling channel is
not sufficient. Check proper installation. The slot between the control panel and the door must be free. --
Defective cooling fan relay on main
power board Replace the electronic board. 7.12
Faulty NTC sensor on main power
board Replace the electronic board. 7.12
ERROR 4 Electronic boards sensor
temperature damaged Hardware failure. -- Replace the electronic board. 7.12
ERROR 5 Flexible key board
damaged Hardware failure. -- Replace the electronic board. 7.12

Troubleshooting guide
4.2
Oven doesn’t work
Anomal
y
Possible Cause Corrective Action section
Oven does not run
No power supply
Main breaker or main fuses
Replace the fuses --
Short circuit
Find the short circuit and remove it --
Oven does not run
Power supply ok.
Connections to Control Board
Replace Control Board 7.12
Check the main fuse on Electronic Board --

Troubleshooting guide
4.3
Cooling Fan Problems
Anomal
y
Possible Cause Corrective Action section
Fan does not run
No power supply
Control Board relay not switching
Replace Control Board 7.12
Fan does not run
Power supply ok.
Blocked rotor
Replace fan 7.2
Burned coil
Replace fan 7.2
Noisy fan
Lose attachment screws on cooling assembly Check attachment screws on cooling assembly or replace fan
7.2
The cooling fan is always on The control is measuring a high
temperature inside the cavity
Check all the connections between the sensor and the
power board
--
--
Check the temperature sensor
--
Check the power board
--

Troubleshooting guide
4.4
Convection Fan Problems
Anomal
y
Possible Cause Corrective Action section
Fan does not run
No power supply Control Board relay not switching Replace Control Board 7.12
Fan does Not run
Power supply ok.
Blocked rotor Replace fan
7.4
Burned coil Replace fan
7.4
Noisy fan
Lose attachment screws on cooling assembly Check attachment screws Check nut on working fan for tightness or replace it
--

Troubleshooting guide
4.5
Oven Light Problems
Anomal
y
Possible Cause Corrective Action section
The Oven lights are always OFF.
No power supply.
Control Board relay not
switching.
Replace Control Board.
7.12
The Oven lights are always OFF.
Power supply is ok.
Lamps are burned out.
Replace lamps. 7.13
The Oven lights are always ON.
Control Board relay has a shorted circuit.
Replace Control Board.
7.12