Welbilt Merrychef eikon e1s, Manual

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119
eikon e1s
Service and repair guide
Component List
Item Name Function
1 Front panel The front panel houses the touch screen and the QTS assembly.
2 Smart Relay Board (SRB) The SRB controls all electrical oven components.
3 Stirrer Motor A stirrer motor turns a stirrer distributing microwave energy in the cavity.
4 Diode (high voltage) The diode completes the magnetron circuit for required high voltage.
5 Cavity Thermostat The thermostat continuously measures the temperature in the cavity and
prevents it from overheating. A reset button is found on the thermostat rear
which is accessible through the rear panel (see Item 22).
6 Cavity temperature sensor wire
(thermocouple) The sensor wire extends between the thermostat and the interior of the cavity.
7 Cavity The cavity (cooking chamber) for cooking food can be accessed by opening
the oven door.
8 Door microswitch(es) The microswitches are connected to the door hinges and switch off the
magnetron(s) when the oven door is opened.
9 Cooling fan The cooling fan pulls air through the air filter into the interior of the casing in
order to cool the electrical components.
10 Convection (hot air) fan motor
speed controller This component controls the speed of the convection fan motor depending on
specific oven settings.
11 Transformer (low voltage) The low voltage transformer feeds the SRB.
12 Capacitor (high voltage) The capacitor completes the magnetron circuit for required high voltage.
13 Magnetron (high voltage) A magnetron generates microwaves.
14 Cooling duct The cooling duct leads heat generated by the magnetron(s) to the rear of the
oven.
15 Overheat sensor Used by the cavity thermostat to detect overheating.
16 Element Heater element.
17 Exhaust pipe
The exhaust pipe leads excessive steam from the cavity to the cooling duct
and the rear air outlet of the oven.
18 Convection (hot air) fan motor The convection fan motor is controlled by the speed controller and drives the
convection fan.
19 Transformer (high voltage) A high voltage transformer feeds a magnetron.
20 Electromagnetic Compatibility
(EMC) Filter and Fuses EMC filters reduce the transfer of electromagnetic noise. The fuses protect the
oven from high voltages and currents.
21 Equipotential bonding connection
(CE appliances only) This is an electrical connection that ensures that the frames of electrical
equipment and any external conductive components are at an equal (or
practically equal) potential.
22 Cavity thermostat reset button Press to reset a cavity overheat.
23 Air vent grille Allows air to flow from the magnetron.
24 Exhaust outlet protection Prevents touching the hot steam outlet.
Table 3.9: Components and their functions