Welbilt MERRYCHEF conneX Service & Repair Manual page 47

5 Service information
Diagnostic view
Merrychef conneX ® service and repair manual
1. Select 'diagnostic view' from the service settings
to check the main components of the appliance.
Diagnostic view can also be selected from the 'Event Details'
screen in the Event Log.
2. Select a component symbol to switch on (red).
Select again to increase the level (remains red) or turn
off (blue). Except for the magnetron(s), all the
component tests will work with the door open or
closed.
3. Remove the air filter at the front of the oven.
The colour of the air filter symbol on the display should
change from grey to green indicating that the microswitch
circuit for the air filter is operating correctly.
Replace the air filter and the colour should change back to
grey.
4. Open the oven door.
Check the colour of the door symbol changes from grey to
green on the display to check that the door microswitch /
interlock circuit is operating.
Place door spacers onto the oven door (refer to "Adjusting the
door microswitches / interlocks" in the "Replacing
components" within section 6.5 for details), to confirm the
door switches are adjusted correctly. Close the door and
check the colour of the door symbol on the display.
5. Select the cooling fan and check if it is operating correctly.
Repeated presses will increase the fan speed, noticed by an
increase in the fan noise volume and air flow through the
filter (off / 33%, 50%, 75% / 100% / off.
6. Select the convection fan and check if it is operating
correctly.
When increasing the fan power gradually, in 10% increments,
to 100% the fan noise should become louder.
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