CM Oven Service Manual
Lit. No. 94-30-006B
Page 63
Oven Mounted Switches
The monitor switch is mounted on the left side
of the bracket. It is normally closed. The switch
is opened by the forward motion of the hook
(See Figure A) when the door is closed. The
purpose of this switch is to cause the fuse to
blow if the latch switch is not open when the
microwave door is opened. The switch is wired
across the neutral and positive side of the line.
The fuse will blow if the monitor switch and
the primary switch are closed at the same time.
The right side door interlock switch
(secondary) is mounted on the right side of the
oven bracket. It is normally open. The switch
is closed by side ways motion of the hook (See
Figure A) when the oven door is closed. This
switch provides a current path to the
microwave plate transformer. With the door
open or if the switch fails, there is no current to
the microwave transformer. The oven mounted
switches are mounted as shown in the
illustration above, facing the oven (See Top
View, above)
The secondary and the monitor switches are mounted on a bracket. The bracket is located on the
plenum behind the control panel on the right side of the oven (see Front View, below).
Front View
Top View
➝
➝
Monitor Switch
Secondary
Switch
N.C.
N.O
.
COM
