Temperature Sensor - Amana ARGS7650 Service Manual

Testing Procedures
sensor and the self-clean latch switch.
The failure codes and warnings which may appear on the
display are listed below. A brief description of the failure
codes is also listed:
DIGIT FAILURE DISPLAY
F1- A shorted input pad/button.
Verify function pad/buttons are not binding on control
panel glass. Reposition glass and/or the ERC. Make sure
buttons spring outward after being depressed.
F2- Oven cavity over temperature.
Check sensor resistance, wiring harness and connections.
F3- Open circuit in oven temperature sensor circuit.
Check sensor resistance, wiring harness and connections.
F4- Shorted circuit in oven temperature sensor circuit.
Check sensor resistance, wiring harness and connections.
F5- Defective watchdog circuit in control.
Check all components and wiring prior to replacing the
ERC.
F7- Failure of door lock switch sensing with door locked.
Check latch switch, door motor, and wiring.
F9- Failure of door lock switch sensing with door unlocked.
Check latch switch, door motor, and wiring.
Door- door not closed/malfuction in door switch
circuitor latch switch
"Lock"-flashing malfuction in door switch or lock
switch ciruit
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before servicing, unless testing requires it. before servicing, unless testing requires it. before servicing, unless testing requires it. before servicing, unless testing requires it. before servicing, unless testing requires it.
B–7
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Temperature Sensor

Sensor resistance may be checked by removing the
sensor interconnect plug from the ERC J2 connector and
inserting ohmmeter leads into the harness connector
plug (pin one and two). Refer to the appropriate wiring
diagram/schematic for exact pin placement and color
coding. A resistance reading of approximately 1075
ohms should be indicated at room temperature (75
degrees F). If a higher resistance is indicated, disconnect
wire harness from sensor and recheck sensor resistance
to verify the failure is in sensor and not in wire harness or
connections. The following list gives corresponding
resistance for different oven temperatures.
Temperature
75 degrees F
350 degrees F
550 degrees F
880 degrees F
Replace sensor if it does not meet these specifications.
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Approximate
Sensor Resistance
1075 ohms
1625 ohms
2025 ohms
2675 ohms
RS2310002 Rev. 1
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