Pub No. 31-14348
06-05 JR
IMPORT
ANT
SER
VICE INFORMA
TION
DO NOT DISCARD
JS968
MODEL NUMBERS
229C4059P536
To Replace:
1. Place the drawer rail on the guides.
2. Push the drawer in until it stops.
3. Lift the front of the drawer and push in until the stops clear the guides.
4. Lower the front of the drawer and push in until it closes.
——— If Drawer is Crooked ———
——— If Drawer Won’t Close ———
STORAGE DRAWER REMOVAL
To Remove:
1. Pull the drawer out until it stops.
2. Lift the front of the drawer until the stops
clear the guides.
3. Remove the drawer.
STOP
STOP
GUIDE
RAIL
Drawer does not close completely
Power cord may be
obstructing drawer
in this area
Drawer front panel tipped
away from body side
Rear drawer support
is resting on top of
guide rail
Drawer front panel tipped to one side
Rear drawer support
on top of guide rail
on the high side
NOTE: Control display will flash “LOCK DOOR”
if the door switch is in the “C” to “NC” position
(door open).
• The words “LOCK DOOR” will flash on and
off in the display while the lock motor is in
motion. When the door is locked, the words
“LOCKED DOOR” remain illuminated 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 lock switches which tell the
control if the door is unlocked or locked
and ready for Clean operation.
NOTE: When
door is
either being
locked or
unlocked,
both lock
switches will
be in the
open
position.
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.
MOTORIZED DOOR LOCK OPERATION
The lock motor is energized when the control is set for Clean and Clean Time
is selected. The K4 Relay contacts will close and complete the circuit that
supplies the voltage to the lock motor.
HTI
HTI T
ech
& Ind
HTSYG048B0
02FL45
-0001
Date:
Made in China
LOCK SW.
N.O. CONTACT
CLOSED
UNLOCK SW.
N.O. CONTACT
OPEN
CAM IN
LOCK POSITION
LOCKED
FAN
BLADE
OVEN
LINER
ELEMENT
OVEN
INSULATION
OUTER
BACK
PANEL
CONV.
FAN
(3)
SCREWS
(4)
SUPPORT
OVEN
CAVITY
MOUNTING
SCREWS
(3)
CONV.
FAN
MTG.
SCREWS
FAN
BLADE NUT
L1
N
NO
C
NC
LOCK RELAY
LOCK
MOTOR
DOOR
SWITCH
L1
N
NO
C
NC
LOCK RELAY (K4)
LOCK
MOTOR
DOOR
SWITCH
DOOR LOCKING/OR UNLOCKING
ALL OTHER MODES WITH DOOR CLOSED
COM
MDL
COM
MDL
TO REMOVE CONVECTION BAKE
ELEMENT:
Remove 3 screws mounting element
to back wall and pull forward and
disconnect wires.
TO SERVICE FAN:
Fan blade can be replaced from
inside oven. Oven must be
removed from installation to
access convection fan motor.
TO ACCESS CONVECTION BAKE ELEMENT:
1. Disconnect power to range; remove oven door and
oven racks.
2. Remove 4 screws mounting panel (2 on each side)
and pull forward.
CONVECTION BAKE ELEMENT AND FAN ASSEMBLY
The convection bake element and fan assembly are located on the back wall
of the oven liner behind the panel with the screen in the center.
FAILURE
CODE
MEANING
CORRECTION
Determine if problem is with key panel or control by
disconnecting ribbon cable and measuring flat cable pins
13 to 14. Should be open. Should be 100–150 ohms while
pressing OFF key.
-F2-
1. Inside oven cavity as measured by
sensor over 650
°
F unlatched or
915
°
F latched
• Welded relay contacts
• Cooling fan stalled or blocked
• Airflow to rear of unit
• High resistance in oven sensor leads/connectors
(especially at sensor in rear)
Shorted OFF key
-F0-
Over temperature
ERC FAILURE CODES
The oven may stop operating but not give an F code on the display immediately.
F codes are stored in nonvolatile eeprom memory until the same fault occurs
twice consecutively. After that, the F code will be displayed. F codes can be
recalled by pressing together TIMER, CLOCK, MIN DOWN or 9. While F codes are
displayed, pressing MIN UP or 8 and HR DOWN or 6 together will clear them. A
fault must exist continuously for 5 minutes before an F code is recorded (F2 and
F8 are sooner).
THERMAL SWITCH
The thermal switch is located on the floor of the component compartment in
front of the fan motor. The thermal switch is wired in series with the lock
motor switches. The limit switch opens at 240
°
F and closes when
temperatures cool below 190
°
F. If the thermal switch opens during:
1. Oven Temperature Below 600
°
F, program is cancelled when thermal
switch opens. Lock motor will run and the words “LOCK” and “DOOR”
will be flashing in the display.
2. Oven Temperature Above 600
°
F, any mode of operation control will go to
-F2- failure code. When this condition exists, check the fan operation (look
for obstructions), inspect oven installation (make sure grille areas are not
blocked), oven insulation and lock circuit.
SPECIAL FUNCTIONS
The control has a section that can be entered to change how the control will work.
To enter this section:
Press and hold BAKE and BROIL pads for 2 (two) seconds and “SF” appears in
the display. Select the area to change. When the change has been made, press
START to return to Time of Day.
• End-of-Cycle Tone – Press TIMER pad. Display shows “Con Beep” when control
is set for continuous End-of-Cycle Tone or “Beep” when set for noncontinuous.
•
°
F or
°
C – Press BROIL pad. Display will show either “F
°
” or “C
°
.” Press BROIL
pad again to change.
• 12-Hour, 24-Hour, or blank out Time-of-Day Clock – Press CLOCK pad. Display
will show “12 hr,” “24 hr,” “OFF” for blank clock. Press again to change.
• 12-Hour Shutdown comes set to shut down after 12 hours of continuous operation;
this can be eliminated—press DELAY START pad. Display will show “No Shdn.” To
turn back on, press DELAY START pad again and display will show “12 Shdn.”
• Sales Mode (special feature for sales floor demonstration) – Press CLOCK and
TIMER pads at the same time. Display will start to cycle through the different modes
of operation.
• Sabbath Mode – This feature disables all but Bake and Timed Bake, overrides
12-Hour Shutdown, disables beeps, and puts symbols in the display during Bake.
Access by pressing DELAY START pad until display shows “SabbAtH.” Exit by
pressing DELAY START until “No Shdn” or “12 Shdn” shows.
BAKE THERMAL SWITCH
The bake thermal switch is wired in series with the lock motor switches.
The limit switch opens at 169
°
F and closes at 140
°
F. If the thermal switch
opens during Bake, the program is cancelled and the lock motor will run.
The words “LOCK DOOR” will flash in the display.
TERMINALS
L1-N
COM to N
L1-BA
L1-BR
L1-CONV
*Light-L1
COM to MDL
L1 to CF
VOLTAGE
120 VAC ALL THE TIME.
120 VAC ALL THE TIME.
240 VOLTS when oven is not calling for
heat (BAKE, CONV. and BROIL relay
contacts open).
120 VOLTS when light is on.
120 VOLTS not locking or unlocking, door
closed.
120 VOLTS when oven door is closed and
Conv. Bake and Conv. Roast not operating.
CONTROL VOLTAGE
CIRCUIT
TERMINALS OHMS
Oven sensor 6 to 8
1100
Ω
@ Rm
Temp.
2650
Ω
@ 865
°
F
Door Unlatched 3 to 5
0
Ω
4 to 5
open
Door Latched 4 to 5
0
Ω
3 to 5
open
*If oven light is not working,
make the following checks:
• Check oven light bulb.
• Light is to come on when door
is opened—check voltage
across light socket terminals. It
should read 120 VAC. If 0 volts,
check jamb switch and wiring.
• Light is to come on when
control light pad is pressed.
RLY105 should click. Check
voltage from P104-7 to L1. It
should read 120 VAC. If 0 volts,
check oven light keypad using
ohmmeter test. If keypad is
good, replace the control.
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
5
4
3
6
8
DOOR UNLATCHED INPUT PIN
DOOR LATCHED INPUT PIN
SENSOR AND LOCK
SWITCH CONNECTORS
LOCK SW. #1
LOCK
SW. #2
LOCK SW. CIRCUIT
UNLOCKED
THERMAL SWITCH
DOOR LATCH OUTPUT PIN 5, -25V DC
THERMAL
SWITCH
5
4
3
6
8
DOOR LATCH OUTPUT PIN 5, -25V DC
DOOR UNLATCHED INPUT PIN
DOOR LATCHED INPUT PIN
SENSOR AND LOCK
SWITCH CONNECTORS
LOCK SW. #2
LOCK
SW. #1
LOCK SW. CIRCUIT
LOCKED
THERMAL SWITCH
THERMAL
SWITCH
-F3-
• Disconnect power. Disconnect sensor harness from
control. Measure sensor resistance (white leads) to
be ~1080 ohms at room temperature with 2 ohms
per degree change.
• Look for damaged harness terminals if not a bad
sensor.
Open oven sensor (under 950
ohms)
Shorted oven sensor (over
2900 ohms)
-F4-
• Disconnect power. Disconnect sensor harness from
control. Measure sensor resistance (white leads) to be
~1080 ohms at room temperature with 2 ohms per
degree change.
• Separate sensor from harness to determine fault.
Shorted matrix or START
key
-F7-
Determine if problem is with key panel or control by
disconnecting ribbon cable and measuring flat cable using
pinout chart. Allow up to 1000 ohms when pressing a key.
-F8-
EEPROM data shift failure
If repeated, replace control.
-F9-
Cooling fan stalls while above
650
°
F; open thermal switch in
yellow or blue leads
Cooling fan or airflow to control area.
-FF-
Replace control.
Loss of latch motor safety
circuit