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Americana and New Generation Refrigerators Diagnostic Procedures
Component Diagnostic Question Action Based On Status Page
Thermistor
Is the refrigerator not operating but the
interior light turns on?
Is the refrigerator or freezer not cold
enough in any operating mode?
Does the fresh food compartment freeze?
1. Confirm that the resistance of the
thermistor is within specification.
2. If the resistance is out of specification,
replace the thermistor.
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Is E2 displayed? (New Generation
models only)
Is the middle thermostat range setting
light flashing? (First generation DMR702
and DMR702-D models only)
1. Confirm that the resistance of the
thermistor is within specification.
2. If the resistance is out of specification,
replace the thermistor.
3. Test each pin of the thermistor for
continuity.
4. If the thermistor is shorted to ground,
replace it.
Thermocouple (Older Americana Models Only)
Does the refrigerator operate in electric
mode but not in gas mode?
Is the check indicator lamp on?
I
Models with integrated ignition where
the re-igniter is on the lower control
module do not use a thermocouple.
1. Confirm that the gas is lighting but not
staying lit or that the electrode continues
to spark while in the flame.
2. Confirm that the voltage of the
thermocouple while in the burner flame is
between 25–35mV.
3. If the voltage is out of specification,
replace the thermocouple.
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Thermo Fuse (Americana Models Only)
Is the refrigerator not operating and the
interior light not on?
1. Test for continuity through the thermo
fuse.
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2. If there is no continuity, and a reset fails
to restore continuity, replace the thermo
fuse.
Thermofuse (New Generation Models Only)
Is E3 displayed?
Are two thermostat range setting lights
flashing? (First generation DMR702 and
DMR702-D models only)
1. Test for continuity through the
thermofuse.
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2. If there is no continuity, and a reset
fails to restore continuity, replace the
thermofuse.
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