5-7
Refer to page 4-18 for the procedure for servic-
ing the magnetron thermostat.
1.
Unplug the microwave oven or disconnect
the power.
2.
Disconnect the wires from the magnetron
thermostat terminals.
3.
Set the ohmmeter to the R x 1 scale.
4.
Touch the ohmmeter leads to the termi-
nals. The ohmmeter will indicate a closed
circuit (0
Ω
) at room temperature. NOTE:
The thermostat opens @ 293˚F / 145˚C
and resets (closes) @ 221˚F / 105˚C.
Refer to page 4-22 for the procedure for servic-
ing the magnetron.
1.
Unplug the microwave oven or disconnect
the power.
2.
Discharge the 1100 W inverter
(perform
step 5 on page 4-22).
3.
Disconnect the wire connectors from the
filament terminals.
4.
Set the ohmmeter to the R x 1 scale.
5.
Touch the ohmmeter leads to the filament
terminals. The meter should indicate less
than 1
Ω
.
6.
Touch one ohmmeter lead to the chassis
and the other to each of the filament termi-
nals. The meter should indicate an open
circuit (infinite).
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
MAGNETRON
MAGNETRON THERMOSTAT (N.C.)
Filament Terminals