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Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com Page 4 of 20
7. The battery is delivering sufficient power. If the power voltage is less than
10.4VDC, the unit will not operate. Check incoming voltage with multimeter by
putting the black lead on the negative terminal of the LOAD DUMP module and the
red lead on the positive terminal as shown. Unit must be running to check this
function.
8. If 12 volts are available to the unit as shown in step 7, check to see if the LOAD
DUMP module is defective. This module is used as a surge protector for the unit.
Removed the module from the unit and remove all wires. Wire the Danfoss module
as shown with the wires that were on the LOAD DUMP module.
LOAD DUMP
Module
DANFOSS
Module
LOAD DUMP
Module
DANFOSS
Module
Positive Lead
from
Multimeter
Negative lead
from
multimeter
See Wiring
Diagram in the
later sections