This manual is designed to take a more in depth look at the E27 convection ovenfor the purpose of
making the unit more understandable to service people.
There are settings explained in this manual that should never require to be adjusted, but for
completeness and those special cases where these settings are required to change, this manual
gives a full explanation as to how, and what effects will result.
WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED
OUT BY QUALIFIED PERSONS ONLY.
It is most important that the oven is installed
correctly and that the operation is correct
before use. Installation shall comply with local
electrical, health and safety requirements.
BEFORE CONNECTION TO POWER
SUPPLY
Unpack and check unit for damage and report
any damage to the carrier and dealer. Report
any deficiencies to your dealer. Check that
the available power supply is correct to that
shown on the rating plate located on the righthand side panel.
To ensure correct ventilation for the motor,
and controls the following minimum
installation clearances are to be adhered to:
Top 200mm / 8”
Rear 25mm / 1”
Left-hand side 25mm / 1”
Right-hand side 25mm / 1”
ELECTRICAL CONNECTION
E27 convection ovens are supplied with
pre-fitted cords. Ensure unit is fitted with the
correct cord and plug for the installation.
Refer specifications section.
Should changing of the cord be necessary,
gain access to the electrical connection
terminal block, grounding lug, and strain relief
by removing the back panel (four screws).
L1L2
Phase
RED
BROWN
BLACK
WARNING:
Neutral
BLACK
BLUE
WHITE
THIS APPLIANCE MUST
BE GROUNDED / EARTHED
Ground
GREEN
GREEN/YELLOW
Figure 2.1
RATING PLATE LOCATION
The rating plate for the E27 convection oven
is located at the bottom left corner of the RH
side panel.
IMPORTANT: THE OVEN VENT
LOCATED ON THE CABINET TOP
MUST NEVER BE OBSTRUCTED.
Position the oven in its allocated working
position. Use a spirit level to ensure the oven
is level from side to side and front to back. (If
this is not carried out, uneven cooking could
occur). The feet used with bench mounting or
provided with stands are adjustable and will
require adjusting in levelling the unit. It should
be positioned so the operating panel and oven
shelves are easily reachable for loading and
unloading.
BEFORE USE
Operate the oven for about 1 hour at 200°C
(400°F) to remove any fumes or odours which
may be present.
The E27 Turbofan convection ovens feature
multi-function operator controls for which a
correct understanding of their operation is
required before carrying out any service or
fault repair work. The control device functions
are explained as follows:
A power switch on the control panel isolates
power to all the controls of the oven. With the
power switch Off all functions of the oven are
inoperable.
NOTE:
side of the heating element power relay
whenever the electrical supply is on.
With the power switch On (illuminated) power
is directly supplied to the 60 minute bake
timer, door microswitch, and the light switch.
The light switch will turn the oven light on
when the door is closed, but only whilst the
light switch is held in.
The door microswitch on the E27 oven
controls the light, the circulation fan, and the
fan element. Hence, opening the door on the
E27 oven causes the circulation fan and fan
element to switch off, as well as causing the
oven light to come on.
The 60 minute timer is a mechanical timer and
can therefore be operated with the oven’s
power switch On or Off. However, only with
the oven’s power switch On will the switch
contacts of the 60 minute timer turn on the
time-up buzzer and illuminate the time-up
indicator on the control panel. The buzzer
and time-up indicator provide indication that
the time setting has run down to zero and at
this point will remain On continuously until the
60 minute timer has been manually set back
to the Off (vertical) position. The 60 minute
timer does not control any other part of the
oven’s operating system as this timer is
independent of the temperature control and
heating system.
The temperature control of these ovens is with
a capillary type thermostat which can be set to
a required cooking temperature.
The E27 has an element coiled around the
circulation fan in the rear of the oven. Power
to the element is provided via a heating power
relay located at the rear of the oven. When
the thermostat calls for heat, it energises this
relay, which switches power to the fan
The supply voltage is fed to the input
element. The control panel indicator light
above the thermostat knob cycles on and off
with the thermostat to indicate when the
element is on and the oven is heating. In the
‘Off’ position, the element relies on the
thermostatic control to prevent it switching on.
Accordingly, if the oven temperature drops
below approximately 20°C the thermostat and
element may cycle on at this setting.
The circulation fan on the E27 oven reverses
direction every 90 seconds for a 50Hz supply
(every 75 seconds for 60Hz). Prior to a
change of direction the fan motor is switched
off for 10 seconds (8½ seconds for 60Hz) to
allow the motor/fan to slow down. Cycling of
the fan motor is controlled by a continuous
cam timer with electric motor. The timer has
two cams and switches which supply power
alternately to one of two motor supply wires,
causing the motor to alternate direction.
During the fan motor slow down periods, both
cam switches are open and power is not
supplied to either of the motor supply wires.
When the oven door is opened or the power is
switched off the cams will stop. When the
oven door is closed or the power switched
back on the cam timer will resume its cycle
from the point where it stopped.
The fan motor is a split phase continuous
capacitor motor with the capacitor externally
connected across the motor supply leads.
The motor also incorporates an internal
thermal trip switch for overheat protection
which is auto resetting.
The following Troubleshooting Guide (section
5) should be used to identify any incorrect
oven operation. On correct identification of
the operating fault the Troubleshooting Guide
will make reference to the corrective action
required, or refer to the Fault Diagnosis
section and/or Service section to assist in
correction of the fault.
WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED
OUT BY QUALIFIED PERSONS ONLY.
4.1 CLEANING
WARNING: ALWAYS TURN THE
POWER SUPPLY OFF BEFORE
CLEANING.
IMPORTANT: THIS UNIT IS NOT
WATER PROOF.
DO NOT USE A WATER JET SPRAY TO
CLEAN INTERIOR OR EXTERIOR OF
THIS UNIT.
EXTERIOR
Clean with a good quality stainless steel
cleaning compound. Harsh abrasive cleaners
may damage the surface.
INTERIOR
Ensure that the oven chamber is cool. Do not
use wire brushes, steel wool or other abrasive
materials. Clean the oven regularly with a
good quality oven cleaner. Take care not to
damage the fan or the tube at the right side of
the oven which controls the thermostat.
OVEN RACKS
To remove, slide out to the stop position, raise
the front edge up, and lift out.
SIDE RACKS
Undo the thumbscrew (anti-clockwise rotation)
securing rack to oven wall, swing rack
towards centre of oven to disengage location
pin at front of side, and pull rack forward to
remove. To replace, engage rack in rear
holes, swing towards side of oven to engage
in front hole, and replace thumbscrew.
FAN BAFFLE
To remove, loosen thumbscrews (anticlockwise rotation) at top of baffle. Lift baffle
to disengage from locating studs and thumbscrews then pull forward to remove. Replace
in reverse order.
OVEN SEALS
To remove, hold at their centre point and pull
forward until they unclip. Remove side seals
first, then top and bottom. The seals may be
washed in the sink, but take care not to cut or
damage them. To replace the top seal,
ensure that the lip is facing the oven opening.
The left, right and bottom seals have the lip
facing out. Fit the top and bottom seals first,
then the side seals.
OVEN DOOR GLASS
Clean with conventional glass cleaners
4.2 ROUTINE PROCEDURES
DOOR SEALS
Check for deterioration 12 months
ELEMENTS
Check that element resistances
12 months
are correct to their ratings (refer
Check that the voltage across phase and
neutral (L1 and L2) terminals of terminal block
is the voltage as stated on the unit’s electrical
rating plate.
If incorrect, check electrical connection of
supply wiring and / or check electrical supply.
Power switch faulty
Check if power switch latches. If the switch
does not latch, then switch is faulty—replace.
With switch latched, check voltage across
terminal one to terminal three or four. If there
is no voltage, check for fault in wiring.
Check voltage across terminal two to terminal
three or four. If there is no voltage, then
switch is faulty—replace.
NOTE:
6.1.2 FAN DOESN’T OPERATE
Microswitch out of adjustment
Open oven door and manually depress door
microswitch actuator at top right of oven. If
this activates the fan, then the microswitch
actuator arm inside control cavity requires
adjustment.
Microswitch faulty
Check voltage from microswitch terminals to
neutral.
With the door closed there should be power to
the com terminal and the n.o. terminal.
With the door open there should be power to
the com terminal and the n.c. terminal.
If not, microswitch is faulty—replace.
When power switch is latched, it
should illuminate if operating
correctly.
Fan motor timer faulty
With oven switched on, and door closed,
ensure that the cams on the motor timer are
rotating.
Motor
Cams
(Rotate one
revolution every
3 minutes)
Figure 6.1.2
If cams are rotating, then isolate the power
supply from the oven. Remove the bottom
wire from the left hand switch terminals.
Rotate the cams manually whilst testing for
continuity through the left hand switch. Check
that the continuity cycles as the cams are
rotated. Re-secure the left hand wire, and
then repeat test for right hand switch.
When operating, 50Hz models should cycle
the power for approximately 80 seconds
through each switch, with a 10 second delay
between each cycle.
On 60Hz models the power should cycle
for approximately 65 seconds through each
switch, with an 8 second delay between each
cycle.
If there is no continuity, or the continuity does
not cycle correctly then timer is faulty -
replace.
Fan motor capacitor faulty
Ensure that oven is isolated from the power
supply. Disconnect all wires from the motor
terminal block, except for the two capacitor
wires. Briefly short across the capacitor
terminals, to ensure that it is fully discharged.
Using a multimeter, measure the resistance
across capacitor terminals.
The resistance should start low and quickly
increase to infinity within 5-10 seconds. If the
resistance does not increase at all, then the
capacitor is shorted - replace. If the capacitor
is infinite resistance straight away then it is
open-circuit - replace. If the resistance never
goes very high then the capacitor is leaky replace.
Fan motor faulty
At rear of oven, check that there is supply
voltage from neutral to both of the phase
terminals on the motor terminal block.
Neutral
Phase
Phase
bottom terminal. If there is no voltage, then
replace the switch.
If voltage is correct, then check wiring to light.
NOTE:
Alternately, perform a continuity test
across the terminals with the light
switch depressed.
6.1.5 60 MINUTE TIMER NO TIME UP
BUZZER
Buzzer faulty
With timer in ‘zero’ position, check the buzzer
at bottom of control panel (inside) for voltage
across terminals. If voltage is correct then
buzzer is faulty—replace.
If there is no voltage, then check wiring.
Buzzer Terminals
Figure 6.1.4
If the voltage to the motor terminal block is
correct, and the capacitor is not faulty, then
check the oven fan for free rotation. Remove
any obstruction.
If fan is free to spin and the voltage supply is
correct, then the motor is faulty—replace.
6.1.3 OVEN LIGHT NOT ILLUMINATING—
DOOR OPEN
No power to light
Check the supply voltage across lamp
housing terminals at rear of oven. If the
voltage is correct, replace the bulb (if faulty).
If the bulb is OK, check lamp housing.
Replace if faulty.
If there is no voltage, check voltage across
micro-switch terminals to neutral.
With the door closed there should be power to
the com terminal and the n.o. terminal.
With the door open there should be power to
the com terminal and the n.c. terminal.
If not, microswitch is faulty—replace.
Buzzer
Figure 6.1.5
Timer not switching on buzzer
With timer in zero position, check voltage to
terminal 1 and terminal 2 of timer. If there is
no voltage at terminal 1 then check wiring.
If no voltage at terminal 2 then timer is
faulty—replace.
NOTE:
Buzzer and time up indicator will continue until the timer manually switched off (to
vertical position).
6.1.6 60 MINUTE TIMER NO TIME UP
INDICATOR
Indicator faulty
With the timer in the zero position, check for
voltage across the indicator light. If correct,
then the indicator light is faulty—replace.
If there is no voltage then check wiring.
6.1.7 NO HEAT
6.1.4 OVEN LIGHT NOT ILLUMINATING—
DOOR CLOSED
Light switch faulty
Check voltage to the top terminal of the
switch. If there is no voltage, then check
wiring.
With switch depressed, check voltage at
Revision 4/F3563
No power to thermostat
With door closed, check voltage to terminal P
of the oven thermostat. If there is no voltage
then check voltage to terminal NO of door
microswitch. If there is no voltage then refer
6.1.2, microswitch out of adjustment / faulty.
If there is voltage then check wiring to the
thermostat.
Set thermostat to 200°C or 400°F. Check the
voltage out of terminal 1 on the thermostat. If
there is no voltage (and there is voltage at
terminal P) then the thermostat is faulty—
replace.
If the voltage is correct and the heating light is
on then check all wiring to elements.
Fan element faulty (blown)
With the thermostat on and heating check
voltage across fan element terminals at rear
of oven. If the voltage is correct then check
the current draw of element. If there is no
current draw then element is faulty—replace.
NOTE:
Correct fan element current draw:
E27 208-220 V: 13.4A ± 1.5A
E27 230-240 V: 12.1A ± 1.5A
Element
Wires
6.1.9 SLOW RECOVERY
Thermostat out of calibration
Place an accurate digital thermometer probe
in centre of oven. Set thermostat to 180°C or
355°F. Close the oven door and allow oven
thermostat to cycle on and off twice. Record
oven centre temperature for the next
thermostat on and off cycle. The thermostat
should cycle on and off between 165°C and
195°C or 330°F and 385°F when set to the
above temperature. If oven temperature is
outside these ranges, then the thermostat
requires recalibration.
NOTE:
Thermostat cycling span should be
±15°C or 27°F
6.1.10 NO THERMOSTAT HEATING
INDICATOR
Indicator faulty
With the thermostat on and heating, check the
voltage across the indicator terminals. If the
voltage is correct then the indicator is faulty—
replace.
If there is no voltage then check wiring.
Figure 6.3.10
Heating power relay faulty
Set thermostat to 200°C or 400°F. With door
closed, check voltage from terminal B to
terminal A of heating relay. If no voltage
check wiring. Check voltage to terminal 6. If
voltage at terminal 6 but no voltage at terminal
4 then the relay is faulty - replace.
6.1.8 NO TEMPERATURE CONTROL
Thermostat faulty
With thermostat in ‘off’ position (knob vertical),
slowly turn thermostat up until heating
indicator just comes on. Wait for heating
indicator to cycle off. If indicator has not
cycled off after 10 minutes then thermostat is
faulty—replace.
NOTE:
E27 thermostat may cycle on and off
with the knob set to the ‘off’ position if the
oven temperature is below 20°C.
Heating relay faulty
With power switch off on control panel, check
for voltage at terminal 4 of heating relay. If
there is voltage then the heating relay is
faulty—replace.
2) Lock hinges into position by rotating the
hinge locking clip over the hinge locking
notch.
Hinge Locking
Notch
3) Uncrimp the retaining lugs of the window
spacer and remove the spacer and glass.
Retaining
Lugs
Figure 6.3.20
Hinge Locking Clip
Figure 6.3.17
3) Lift door away from the oven and place on
a flat surface.
4) Undo three screws and remove the trim
from the bottom of the door. Carefully
withdraw the glass.
Three Screws
Figure 6.3.18
5) To replace, ensure that the two silicone
rubber seals are in place on the left hand
and right hand side of the door frame.
Clean the inside of the glass and refit it,
ensuring that the silicone rubber seals
cover the outer edges of the glass. Refit
the bottom trim, and fit the door to the
oven.
6.3.15 INNER GLASS (E27)
4) To replace, ensure the silicone rubber seal
has not been displaced. Clean the glass
and refit it. Place the window spacer in
position and crimp the retaining lugs over
to hold the glass in place. Refit outer
glass as above.
6.3.16 DOOR SEALS
1) Open oven door.
2) To remove, hold at their centre point and
pull forward until they unclip
3) Refit new seals.
Note:
Fit top and bottom seals first, with
open side of seal facing
downwards. Fit side seals with
open side facing outwards.
6.3.17 DOOR HANDLE (E27)
1) Remove the door (refer 6.3.14).
2) Undo four screws and remove the top trim
and handle assembly, taking care not to
dislodge the outer glass.
3) Undo two bolts securing handle to top
trim. Replace handle and reassemble in
reverse order.
1) Remove the outer glass (refer 6.3.14).
2) Undo four screws and remove the top trim
and handle assembly.
10) Prise open the insulation panel to allow
access to the right hand counter bracket.
Undo two screws securing bracket, and
remove bracket.
Two screws
Figure 6.3.28
11) Replace, ensuring roller to top of bracket.
Re-assemble in reverse order.
6.4 ADJUSTMENT / CALIBRATION
6.4.1 THERMOSTAT CALIBRATION
IMPORTANT: IF THE OVEN
TEMPERATURE NEEDS TO BE
INCREASED, ENSURE THAT THE
THERMOSTAT IS IN THE ‘OFF’ POSITION
BEFORE CARRYING OUT ADJUSTMENT.
IF OVEN TEMPERATURE NEEDS TO BE
DECREASED, ENSURE THERMOSTAT IS
IN THE ‘MAX’ TEMPERATURE POSITION
BEFORE CARRYING OUT ADJUSTMENT.
1) Turn off power.
2) Remove thermostat knob by pulling it
firmly away from control panel.
3) Adjust the calibration screw located in the
centre of the thermostat shaft.
To increase oven temperature, turn
calibration screw anticlockwise.
To decrease oven temperature, turn
calibration screw clockwise.
Adjustment of the calibration screw by 1°
angular will alter oven temperature by
approximately 0.8°C (1.5°F).
Calibration Screw
Revision 4/F3563
Figure 6.4.1
6.4.2 DOOR MICROSWITCH ADJUSTMENT
1) Open oven door.
2) Open control panel (refer 6.2.1).
3) With fingers, bend actuator arm of
microswitch so that switch operates when
door is in closed position.
OVEN FAN ELEMENT (2800W) - 230-240V
OVEN FAN ELEMENT (2800W) - 208-220V
FAN MOTOR
CAPACITOR 3µF
MOTOR TIMER 208-220V
MOTOR TIMER 220-240V
FAN
BAFFLE SECURING SCREW
COMPLETE DOOR ASSEMBLY (E27)
COMPLETE DOOR ASSEMBLY (E27MS)
OVEN DOOR SEAL ASSEMBLY SIDE
OVEN DOOR SEAL ASSEMBLY TOP/BOTTOM
HANDLE (E27)
HANDLE (E27MS)
DOOR OUTER GLASS (E27)
DOOR INNER GLASS (E27
DOOR INNER AND OUTER GLASS (E27MS)
DOOR HINGE
OVEN SIDE RACK LH
OVEN SIDE RACK RH
SIDE RACK SCREW
WIRE OVEN RACK (NORTH AMERICAN MODELS)
M024398 BAFFLE BRACKET TOP
M024507 BAFFLE BRACKET BOTTOM
HINGE COUNTER BRACKET
OVEN ELEMENT 2800W – 240V
OVEN ELEMENT 2800W – 208V
OVEN FAN
M014031STANDOFF
11
12
13
14
15
16
16
17
18
19
20
21
22
23
24
M024526
M021698
M017770
M024406
M023068
M024408
M025349
M024407
M024413
M021468
M024394
M024477
M024377
M004919
M024378
M090201
25
26
27
28
29
M024392
M024414
M004918
M023218
MSA1550
MSA1551
30
31
32
33
M024394
M013908
M024396
M024503
M024567
34
35
M024504
M017185
M010162
M017453
M012206
36
37
M019213
M018251 38 M002138
M002441
39
40
41
42
43
44
45
M013586
M019238
M024505
M024395
M024404
M024379
M021637
M021638
BAFFLE
BAFFLE SCREW
PHIAL GUARD
LEFT HAND SIDE RACK
SIDE RACK SCREW
OVEN RACK (NORTH AMERICAN MODEL)
OVEN RACK (ALL OTHER MODEL)
RIGHT HAND SIDE RACK
TOP TRIM
(Refer Section 11.3 for E27MS Door Assembly)
DOOR HANDLE (Refer Section 11.3 for E27MS Door Assembly)
HANDLE STIFFENER (Refer Section 11.3 for E27MS Door Assembly)
OUTER GLASS SEAL (Refer Section 11.3 for E27MS Door Assembly)
DOOR OUTER GLASS
GLASS CLAMP ANGLE (Refer Section 11.3 for E27MS Door Assembly)
DOOR INNER GLASS (Refer Section 11.3 for E27MS Door Assembly)
INNER GLASS SEAL (Per meter)
INNER GLASS (SEAL Refer Section 11.3 for E27MS Door Assembly)
BOTTOM TRIM (Refer Section 11.3 for E27MS Door Assembly)
DOOR INNER PANEL (Refer Section 11.3 for E27MS Door Assembly)
HINGE
CONTROL PANEL ASSEMBLY BAKBAR (REFER SECTION 11.2)
CONTROL PANEL ASSEMBLY MOFFAT (REFER SECTION 11.2)
OVEN BODY
FOOT ASSEMBLY
INSULATION PANEL
MOTOR TIMER 208-220V
MOTOR TIMER 220-240V
MOTOR TIMER MOUNTING BRACKET
CORDSET 15A – NZ/AUST
POWERFLEX CORD 15A – EXPORT
CORDSET 13A FUSED – UK
CORDSET 15A – USA/CANADA
SNAP BUSH 32mm
CABLE ENTRY BRACKET
CABLE CLAMP
INSULATOR
TERMINAL
BLOCK
SNAP BUSH 26mm
RELAY 30A
FOOT CHANNEL
OVEN TOP/BOTTOM SEAL ASSEMBLY
COVER PANEL
MICROSWITCH BUTTON
PIN CIRCLIP
SPIRE CLIP
DOOR BUSH
MOTOR MOUNTING PLATE
OVEN LAMP ASSEMBLY
SILK GASKET
LAMP 40W
LIGHT GLASS
MOTOR
MOTOR SHAFT SEAL
CAPACITOR 3µF
MICROSWITCH
INSULATOR
MICROSWITCH MOUNTING BRACKET
VENT TUBE
CONTROL PANEL °C – BAKBAR
CONTROL PANEL °C – BLUE SEAL
CONTROL PANEL °F – MOFFAT
LIGHT SWITCH
TIMER KNOB
INDICATOR NEON
THERMOSTAT KNOB
POWER SWITCH
THERMOSTAT 50-250°C (120-480°F)
TIMER – 60 MIN
BUZZER
1 x Vent Duct 24306
1 x Vent Pipe 24307
1 x Saddle Clamp 10023
1 x Double Stack Front 04921
2 x Double Stack Side 24509
1 x Double Stack Rear 24510
25 x
2 x ½” x 8 Phillips Head Black Screw 41046
2 x Black Fibre Washer 45605
Assembly Instructions: (THE ELECTRICAL SUPPLY MUST BE DISCONNECTED)
A. Bottom Unit
1. Position vent duct on bottom unit over oven vent. Temporarily locate double stack rear in
correct position on top of bottom unit. Centrally locate the vent duct in the cut-out. Check that
the oven vent is covered and mark the
five hole positions (two down each side
of the flue duct and one at front) on the
oven wrapper.
2. Drill five ø3.5mm holes in the oven
wrapper where marked.
3. Secure the vent duct to the wrapper
with five 3/8" x 8A Pozi screws into
these holes.
4. Undo the three screws securing the top
lintel to the bottom oven, and remove
the lintel. Remove the four screws
from the top rear of the oven wrapper.
B. Top Unit
1. Remove all trays and racks from oven.
Tip oven upside down and remove the feet screwed into the base.
2. Remove the six screws (three each side) securing the oven wrapper to the sides of the oven.
Position the double stack sides flush with the sides and front of the oven, and secure each
with three screws.
3. Remove the three screws along the front bottom edge of the oven. Position the double stack
front over these three screw holes. Flush the ends of the double stack front with the sides of
the unit and secure to the double stack sides using the two black screws (with
fibre washers). Secure to bottom of oven with three screws.
4. Secure the double stack rear to the double stack sides with two screws.
1. With two persons, lift the top oven onto the bottom oven and position slightly forward so that
the double stack front engages with the lintel support on the bottom oven, then slide the top
oven back until the double stack rear locates over the bottom oven.
2. Secure double stack rear to bottom unit with four screws. Secure the double stack front to the
lintel support of the bottom unit with three screws.
3. Remove the rear cover panel from the top unit. Fit the vent pipe to the vent duct then
secure pipe to the rear panel of the top unit using the saddle clamp and two screws.
4. Using pliers or similar, knock out the notches at the top and bottom of the rear cover panel
that allow for the vent pipe. Refit the rear cover panel to the top unit.