Merrychef eikon e4s - Manual (Page 25)

Service & Parts Manual original Instructions
Part Number 32Z3871 US
Issue 3
25
SER
VICING
E
13.5 VISUAL VIEW
13.5.1 Select VISUAL VIEW (E) to check the main oven
components. Select a component symbol to switch
on (red), select again to increase the level or turn off
(green).
13.5.2 Remove the front air intake fi lter, the colour
should change from green to red on the display
indicating that the magnetic reed switch circuit for the
air intake fi lter is operating. Replace the fi lter and the
colour should change back to green.
13.5.3 Open the oven door and check the colour
changes from green to red on the display to check
the door microswitch/interlock circuit is operating.
Place door spacers onto the oven door (refer to Door
Interlock Adjustment (Testing Components section)
for details), close the door and check the colour on
the display. Green indicates the door adjustment is
ok, red indicates that the Door Interlock Adjustment
procedure must be completed.
13.5.4 Select the cooling fan and check it’s operating
correctly.
13.5.5 Place a microwave safe container of water into
the oven, close the oven door and select a magnetron
to test the current draw at maximum output, this
will time-out after 30 seconds. For dual magnetron
models, test the magnetrons individually and together.
Using heat proof gloves, remove the container and
close the oven door. Individual Magnetron Test. If there
is a magnetron error present, then fi rst reset the error.
If during the magnetron test the Amps show between
1.1 - 2.2 Amps and the error re-occurs after 8 secs then
the failure can be found in the 230V circuit, Refer to
the schematics to fi nd the fault for repair (fuses, SRB,
Door switches, connections, Power supply). If during
the magnetron test 0 amp and the error re-occurs after
8 secsthen the failure can be found in the high voltage
circuit. Replace HV components (diode, Capacitor or
magnetron) to fi nd out the failing component never
measure in the HV circuit and disconnect the oven
from the main supply before working on the HV circuit
also the capacitor has to be discharged.
13.5.6 Select the Convection Fan and check it is
operating correctly.
13.5.7 Select the Heating Element, it increases to
maximum temperature then cycles (the Convection
Fan is on by default). Check the cavity temperature
and heater element current draw at maximum are
correct.