Diagnostics - Jenn-Air JMD2124WS Technical Education

Do not continue with the diagnostics of appliance if the
household fuse is blown, a circuit breaker is tripped or if there is
less than 120-volt power supply at the wall outlet.
Complete the following steps before checking microwave oven
circuitry:
1. Unplug microwave oven or disconnect power.
2. Discharge high-voltage capacitor and disconnect white wire
from power transformer.
(L)
B K
Unit Plugged In
(L)
Relay 1
Cavity Lamp On
BK
Fan Motor On
Stirrer Motor On
(L)
High
BK
Voltage
Section
Touch Panel Continuity Diagram
J 4 -
- - - - - - - - - - - - - - - - -
J-12
- - - - - - - - - - - - - - - - -
J-11
- - - - - - - - - - - - - - - - -
J-10
- - - - - - - - - - - - - - - - -
J-9
-------------------------------
J-8
-------------------------------
J-7
R e h
J-6
Stop/Clear
J-5
TROUBLESHOOTING

DIAGNOSTICS

AC Line Filter
Fuse
20A
AC Line Filter
Fuse
20A
BK/BK/BU
Thermostat
AC Line Filter
Fuse
20A
BK/BK/BK
Thermostat
- - - - - - - - - - - - - -
- - - - - - - - - - - - - -
- - - - - - - - - - - - - -
- - - - - - - - - - - - - -
Sensor Cook
Sensor Reheat
e t a D
Start/Add 1 Minute
3. Check for loose wiring or incorrect wiring within microwave
oven.
4. All testing must be done with an ohmmeter having a
sensitivity of 20,000 ohms per volt DC or greater, and
powered by at least a 9-volt battery.
5. All operational checks using microwave energy must be done
with the microwave oven loaded with a minimum of 8 oz (250
mL) of water in a microwave safe container.
Low Voltage
Transformer
B K BK/BU
Thermostat
Relay 1
Cavity Light
R
Y
Relay 2
Touch Panel
J 3 -
6
1
2
7
Sensor Popcorn
f e o r t s
-------------------------------
6-3
AC Line Filter
W/W/W
W
CL
Primary
Cooling Y
Interlock
Fan Motor
Switch
FM
W
SM
Stirrer Motor
High
W
W
Voltage
Primary
Section
Interlock
Switch
J 2 -
9
8
3
4
Open -------------------------------
Setup Custom Help
K e e p W r a m C
(N)
W
AC Line Filter
(N)
W
W
AC Line Filter
(N)
W
J 1 -
T m i r e C o l k c
0
5
P o w r e L e v l e
o n r t l o L o c k O / n O f f
Close