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OPERATION
CONTROLS — MODELS GCO4S AND GCO4D/GCO6D (Fig. 4)
Fig. 4
MASTER SWITCH — ON — turns oven control circuits on.
OFF — turns oven control circuits off.
OVEN COOL SWITCH — Allows the fan motor to run with the doors ajar to speed oven cooling.
LIGHT SWITCH — Turns lights in the oven on or off.
THERMOSTAT — Controls oven temperature during cooking operation.
TIMER — Use to set cooking cycle time. Alarm sounds continuously when elapsed
time counts down to 0; oven does not turn off. Turn timer to OFF position
to stop alarm. When oven is not in use, keep timer at OFF position.
ON LIGHT (Amber) — Lit when Master Switch is positioned at ON.
HEAT LIGHT (White) — Comes on and goes off when the burner cycles on and off.
NO IGNITION LIGHT (Red) — Comes on if burner fails to ignite after the third try. When lighting the oven,
the NO IGNITION LIGHT cycles ON during the 5-second purge and OFF
during the 7-second ignition trial.
2-SPEED MOTOR — LO / HI — Adjusts air velocity in the oven.
GAS VALVE — When ON, allows gas to flow to the ignition system.
MODEL GCO4S MODEL GCO4D/GCO6D
PL-51605
ON
H
EAT
IGNITION
T
IM
E
R
ON
OFF
G
AS VALVE
ON
MASTER
SW
ITCH
OFF
GAS VALVE
TH
E
RM
O
ST
A
T
TURN GAS VALVE "ON"
PUSH MASTER SW
ITCH TO
"ON" POSTION. IF OVEN
FAILS TO LIGHT. PUSH
MASTER SWITCH TO "OFF"
TURN GAS VALVE OFF WAIT
5 MINUTES FOR RETRIAL.
LIGHTING
INSTRUCTIONS
OVEN COOL
PUSH SWITCH TO "ON"
TO SHUT
OVEN OFF
PLACE MASTER SWITCH IN
"OFF" POSTION TURN GAS
VALVE OFF
O
N
OF
F
OV
EN
CO
OL
OFF
LOW
HI
OVEN
LAM
PS
2 SPEED
M
O
TOR
ON
40
45
50
55
25
30
35
20
15
5
10
60
0
425
450
475
400
350
300
250
225
150
300
500
T
E
M
P
F
O
F
F
THERMOSTAT
TIMER
MASTER SWITCH
LIGHT SWITCH
2-SPEED MOTOR
SWITCH
ON LIGHT
HEAT LIGHT
NO IGNITION LIGHT
OVEN COOL SWITCH
ON
HEAT
IG
N
IT
IO
N
T
IM
E
R
ON
OFF
GAS VALVE
ON
MASTER
SW
ITCH
OFF
GAS VALVE
T
H
E
R
M
O
S
T
A
T
TURN GAS VALVE "ON"
PUSH MASTER SWITCH TO
"ON" POSTION. IF OVEN
FAILS TO LIGHT. PUSH
MASTER SWITCH TO "OFF"
TURN GAS VALVE OFF WAIT
5 MINUTES FOR RETRIAL.
L
IG
H
T
IN
G
IN
S
T
R
U
C
T
IO
N
S
O
V
E
N
C
O
O
L
PUSH SWITCH TO "ON"
T
O
S
H
U
T
O
V
E
N
O
F
F
PLACE MASTER SWITCH IN
"OFF" POSTION TURN GAS
VALVE OFF
ON
OFF
OVEN
COOL
OFF
OFF
LOW
HI
OVEN
LAMPS
2 SPEED
MOTOR
ON
F
40
45
50
55
25
30
35
20
15
5
10
60
0
450
400
350
250
200
300
500
O
F
F
THERMOSTAT
TIMER
MASTER SWITCH
LIGHT SWITCH
2-SPEED MOTOR
SWITCH
ON LIGHT
HEAT LIGHT
NO IGNITION LIGHT
OVEN COOL SWITCH
PL-51604