23
SERVICE MANUAL
www.norcold.com
Test J: Will Not Run On DC Power
NO
Switch unit to run on AC power.
Does
unit operate
on AC power
properly?
Follow “Diagnostics Prechecks”
procedures in this manual.
YES
Check for blown fuse in DC circuit.
NO
Is fuse
blown?
Replace fuse.
YES
Recharge or replace battery.
Check that the wiring to the refigerator
is at least #12 gauge wire (required).
NO
Is wiring at
least #12
gauge?
Refer to the Installation Manual for
the recommended wire size.
YES
Check DC voltage at compressor
module.
NO
Is voltage
below 11.3
VDC?
Correct high resistance (voltage drop) in
supply circuit.
YES
NOR000847B