Freightliner Refrigerator Troubleshooting Guide
LOAD DUMP Module
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
DANFOSS
Module
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.
Negative lead from multimeter
Positive Lead from Multimeter
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.
See Wiring Diagram in the later sections
LOAD DUMP Module
DANFOSS Module
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION |
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P.O. Box 15299 I Richmond, VA 23227 USA |
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Phone +804 746 1313 Fax +804 746 7248 |
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www.dometic.com | Page 4 of 20 |