Diagnostic Flowcharts - GE ZIC36ON Series Technical Service Manual

Check control settings and temperatures.
Food at setting of 37 ˚F and 0 ˚F with no door
openings for 12 hours should be:
Fresh food 34 ˚F to 42 ˚F
Freezer -8 ˚F to +6 ˚F
Control settings OK
Basic refrigerator checks:
Door gasket seal OK?
Door switch - light turning off with door closed?
Yes
Is evaporator fan running?
Set temperature controls to 37 ˚F and 0 ˚F.
Unplug Refrigerator.
Reconnect power.
Does damper door open immediately after
reconnecting power?
Yes
Is the airflow within the fresh food normal?
YES
Verify thermistors are within proper range
using the thermistor values chart.
Is the resistance within range?
YES
Check sealed system.
Does sealed system check OK?
Yes
Unit tests OK.
Run checks again.
Reset electronics by unplugging
refrigerator for 15 seconds.
Look for usage problem.
Fresh Food Warm - Freezer Normal
Control settings
require adjustment
No
Go to Evaporator Fan
NO
Not Running flowchart.
Go to Damper Door Not Operating
No
Look for blockage at vents
No or heavy frost on
evaporator cover.
Check wiring connections.
NO If wiring is OK, replace
thermistor.
Repair
No
sealed system.
– 37 –
Adjust settings and allow
24 hours to stabilize.
Repair as
necessary.
flowchart.
Blockage
Go to Heavy Frost on Evaporator
Heavy frost
Remove blockage
from vent area.
flowchart.