Parts Layout; Primary, Secondary, And Monitor Interlock Switch Checkout Procedure - Whirlpool MH1150XMQ Tech Sheet

TECH SHEET - DO NOT DISCARD
Cavity Thermostat 1
Opens at 165°C (329°F)
Closes at -35°C (-31°F)
Cavity Lamp
Turntable
Motor
Secondary
Interlock Switch
Hood (Cooktop)
Lamp
Monitor Interlock
Switch
Primary Interlock

PRIMARY, SECONDARY, AND MONITOR INTERLOCK SWITCH CHECKOUT PROCEDURE

Switch
Disconnect the wires at the Primary Interlock Switch.
Primary
Check from the common terminal (White/Brown wires) to
Interlock
the normally open terminal (White wires).
Disconnect the wires at the Secondary Interlock Switch.
Check from the common terminal (Black wires) to the
normally open terminal (White wire).
Secondary
Interlock
Disconnect the wires at the Secondary Interlock Switch.
Check from the common terminal (Black wires) to the
normally closed terminal (Orange wire).
Disconnect the wires at the Monitor Switch.
Monitor
Check from the common terminal (White/Blue wires) to
the normally closed terminal (Red wires).
(+) Continuity (–) No Continuity
NOTE: These diagrams are not intended to show a complete circuit; they represent the position
of switches during "DOOR OPEN" and "DOOR CLOSED" (continuity checks only).
DOOR CLOSED
L
(NC)
(NO)
SECONDARY
INTERLOCK
SWITCH
FOR SERVICE TECHNICIAN'S USE ONLY
Switch
T ouch Panel
(Membrane Switch)
Check By
(NO) (NC)
(NC)
MONITOR PRIMARY
SWITCH INTERLOCK
SWITCH
Hood Fan
Motor Assembly
Cavity Thermostat 2
Opens at 125 C (257 F)
Closes at -35 C (-31 F)
Fan Thermostat
PCB
Opens at 45°C (113°F)
(Control Board)
Assembly Closes at 60°C (140°F)
DOOR OPEN
N
L
(NC)
(NO)
SECONDARY
INTERLOCK
SWITCH

PARTS LAYOUT

Not to Scale
Motor Capacitor
Opens at 145°C (293°F)
Closes at 70°C (158°F)
H.V. Capacitor
H.V. Diode
Exhaust
Door
Open
−
−
+
+
(NO)
(NO) (NC)
MONITOR
SWITCH
PART NO. 8184997/4619-651-98301
PAGE 5
Line Fuse
Fuse Holder
Magnetron
Magnetron
Thermostat
H.V. Transformer
Door
Closed
+
+
−
−
N
(NC)
(NO)
PRIMARY
INTERLOCK
SWITCH