Main L1 & L2 Filters; Grill & Convection Thermostats - KitchenAid KEMS378S Technical Education

Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
MAIN L1 & L2 FILTERS
Main L2 Filter
P34
P33
P31
P32
Refer to page 4-11 for the procedure for ac-
cessing the main L1 and L2 filters.
1. Unplug oven or disconnect power.
2. IMPORTANT: Discharge the main L2
filter by touching the leads of a 20,000
ohm resistor to the terminals and chassis
ground.
3. Disconnect the wires from the main L1 or
L2 filter terminals.
4. Set the ohmmeter to the R x 1 scale.
5. Touch the ohmmeter test leads to the fol-
lowing L1 filter terminals:
Connectors P31 & P32, and P33 & P34 =
300 Ω or more (100 Ω or less is abnormal).
Connectors P31 & P34, and P32 & P33 =
0 Ω (100K Ω or more is abnormal).
6. Touch the ohmmeter test leads to the fol-
lowing L2 filter terminals:
Terminals 1 and 3 = less than 1 Ω.
Terminals 2 and 4 = less than 1 Ω.
Terminals 3 and 4 = 660 to 700 Ω.
Electrical Shock Hazard
4
3
1 2
Main L1 Filter
WARNING
GRILL & CONVECTION
THERMOSTATS
Grill Thermostat
Refer to page 4-11 for the procedure for ac-
cessing the grill thermostat, and page 4-22 for
the convection thermostat.
1. Unplug oven or disconnect power.
2. Disconnect one of the wires from the ther-
mostat terminals.
3. Set the ohmmeter to the R x 1 scale.
4. Touch the ohmmeter test leads to the
thermostat terminals. The meter should
indicate a closed (0 Ω) circuit.
NOTE: The grill thermostat opens at 266°F
(130°C) and closes at –31°F (–35°C).
The convection thermostat opens at 293°F
(145°C) and closes at 221°F (105°C).
5-5
Convection Thermostat