Oven Calibration; Relay Contacts Operation Test And Control Voltage Check - GE Profile J2S968 SERIES Technical Service Manual

Oven Calibration

Testing has shown that this oven has the best
cooking performance at a control setting of 350°F
(177°C) when the average center oven
temperature is between:
All Gas Range - 350°F and 390°F (177°C and
199°C).
Dual Fuel Range - 340°F and 380°F (171°C and
193°C).
Customers may change the average center oven
temperature by ± 35°F (± 2°C) to satisfy their own
cooking needs.
To change:
• Press and hold BAKE and BROIL pads until
SF appears in display.
• Press BAKE pad to enter oven calibration
mode. 00 appears if oven calibration has not
been changed previously. If oven calibration
has been changed previously, a temperature
between ± 35°F (± 2°C) will be displayed.
• Press increase or decrease pads to change
average oven temperature.
• Press START pad to return to Time of Day.
Relay Contacts Operation Test and
Control Voltage Check
All Gas Range
TERMINALS
VOLTAGE
L1- TO N 120 VAC ALL THE TIME
120 VAC when in BAKE mode
BAKE TO N
BROIL TO N 120 VAC when in BROIL mode
SWITCH CONTACTS
DOOR
MOTOR TO N 120 VAC locking or unlocking
Note: Temperature/Mode selection necessary for
operation of relay contacts.
Note: Voltage must be present across terminals
L1 to N for control to operate. Transformer
primary is 150 Ω to 200 Ω measured L1 to (N)
with power removed.
Dual Fuel Range
TERMINALS
TERMINALS VOLTAGE
L1-N
120 VAC ALL THE TIME.
COM to N
120 VAC ALL THE TIME.
L1-BA-DLD
240 VOLTS when oven is not
calling for heat (BAKE, CONV.
and BROIL relay contacts open).
*Light-L1
120 VOLTS when light is on.
COM to MDL 120 VOLTS not locking or
unlocking, door closed.
L1 to CF
120 VOLTS when oven door is
closed and CONV. BAKE and
Conv. Roast not operating.
CIRCUIT TERMINALS
Oven sensor
Temp.
Door
Unlatched
Door Latched
*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.
– 52 –
VOLTAGE
OHMS
1100Ω @ Rm
6 to 8
2650Ω @ 865°F
0Ω
3 to 5
open
4 to 5
0Ω
4 to 5
open
3 to 5