Dometic 750000011(TJ22F) Freightliner Refrigerator Troubleshooting Guide, LOAD DUMP Module

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
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 Fax +804 746 7248
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