Troubleshooting; Troubleshoot Compressor Control Module; Test A, Battery Protection Cut-Out - Norcold N10DCX Service Manual

Troubleshoot Compressor Control Module

Test A, Battery Protection Cut-Out

Before starting this procedure make sure the DC supply voltage to
the refrigerator is correct. The DC supply voltage must be:
■ More than 11.7 VDC to start.
■ Remain between 10.4 VDC to 15.4 VDC to continue operation.
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TROUBLESHOOTING

Make sure that the DC supply voltage
is correct.
Remove refrigerator from enclosure,
but do not disconnect the DC supply.
Inspect the fuse on the positive DC
Supply that is connected to control
module terminal "+".
NO
Is the fuse
intact?
YES
With the refrigerator turned OFF,
measure voltage at the DC connector.
VDC NO
10.4 - 15.4?
YES
With freezer and fresh food
compartments at temperature
setting "5", measure voltage at DC
connector.
NO
VDC
10.4 - 15.4?
YES
Continued on next page.
Replace the fuse. Test the refrigerator.
Repair DC supply voltage.
Test the refrigerator.
Repair DC supply voltage.
Test the refrigerator.
11
SERVICE MANUAL