GE JS966, Техническое обслуживание руководство, Страница: 42 / 52

40
Door Lock Thermostat
The door lock thermostat is located above the
oven cavity in front of the fan motor.
The thermo-
stat is wired in series with the lock motor switches.
Note: The limit switch opens at 240°F and closes
when temperatures cool below 190°F.
If the door lock thermostat opens when the oven
temperature is:
z z z z z
Below 600°F. The program is cancelled when
the door lock thermostat opens. Lock motor will
run and the words LOCKED DOOR will be
flashing in the display.
z z z z z
Above 600°F. Any mode of operation control will
go to -F2- failure code. When this condition
exists, check the fan operation (look for obstruc-
tions), inspect oven installation (make sure grille
areas are not blocked), oven insulation, and lock
circuit.
Fan Thermostat
The fan thermostat is located above the oven
cavity in front of the fan motor. The thermostat will
turn the fan on in any mode of operation when it
detects a temperature above 138°F. The fan will
turn off once the temperature has cooled below
106°F.
Convection Fan
If convection fan is not working, make the follow-
ing checks:
1. Check the voltage from terminal CF to N on the
control. It should read 120 V in Conv. Bake or
Motorized Door Lock
The motorized door lock assembly is located
above the oven. The assembly consists of a lock
motor cam and switch assembly, lock hook, and
mounting plate.
The lock motor is energized when the control is
set for Clean and Clean Time is selected. The K1
relay contacts will close and complete the circuit
that supplies the voltage to the lock motor.
Note: The display of the control will flash LOCK
DOOR if the door switch is in the C to NC position
(door open).
The words LOCK DOOR will flash in the display
while the lock motor is in motion. When the door is
locked, the words LOCK DOOR remain illumi-
nated in the display.
CAM - The cam on the motor performs two
functions:
1. Positions the lock hook in the door to prevent
opening during clean operation.
2. Operates the 2 lock switches which tell the
control if the door is unlocked or locked and
ready for clean operation.
Note: When the
door is either
being locked or
unlocked, both
lock switches 1 &
2 will be in the
open position.
LOCKED
UNLOCKED
HT
I
HT
I Te
ch &
Ind
HT
SYG
048
B00
2FL
45
-00
01
Date
:
Ma
de in
C
hin
a
LOCK SW.
N.O. CONTACT
CLOSED
UNLOCK SW.
N.O. CONTACT
OPEN
LOCK POSITION
LOCKED
HTI
HTI T
ech
&
Ind
HTSYG048B002FL45
-0001
Date:
Made in China
LOCK SW.
N.O. CONTACT
OPEN
UNLOCK SW.
N.O. CONTACT
CLOSED
CAM IN
UNLOCK POSITION
UNLOCKED
3
2
1
Door latch output pin -25VDC
at all times measured to ground
Door Unlatched Input Pin
Sensor and Lock
Switch Connectors
LOCK SW.#2
LOCK
SW. #1
LOCK SW. CIRCUIT
Thermal Switch
4
6
Locked
Door latched Input Pin
6
4
3
Door latch output pin -25VDC
at all times measured to ground
Sensor and Lock
Switch Connectors
LOCK SW.#1
LOCK
SW. #2
LOCK SW. CIRCUIT
Door unlatched Input Pin
Thermal Switch
2
1
Door latched Input Pin
GEA01059
Roast mode. If not, replace the control.
2. If voltage is OK, check the convection fan
motor. It reads approximately 15 to 20
Ω
at
room temperature. Check to make sure the fan
shaft is not rubbing on the oven liner.
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