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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 8 of 20
B: Insufficient Refrigerating Capacity. Check:
1. The door is sealed properly and the refrigerator is not positioned close to heat
sources.
2. Ice build up in and on freezer compartment. 1/8” maximum. Defrost Freezer by
turning power off and let ice melt. Do not chip ice off freezer compartment
because freezer plate can be damaged.
3. The refrigerator is sufficiently ventilated.
4. Dust has not blocked the condenser ventilation sources.
5. The Condenser Cooling Fan rotates freely.
6. The compressor and fan are operating properly. The compressor is very quiet
during operation so it may be difficult to ascertain if it is running. A metal tube
or a screw driver, position on the compressor and your ear, may help you hear
the compressor motor when energized. If fan is running but the compressor
kicks on and off, or the compressor is not running, change the Danfoss module
(see Section A #12). If problem persists, it may indicate the compressor is bad
or a refrigerant leak.
7. The inside temperature needs to be around 34F to 40F. If the temperature starts
in this range but increases over time, put the refrigerator on a test bench, start it,
let it run for an hour and check the Cap Tube/ Strainer Assembly located in the
back of the unit. Look for condensation and/or ice accumulations as illustrated
in the following pictures:
If condensate or ice accumulates in these areas, replace unit.
Water condensation around strainer
usually indicates moisture in the system.
Ice accumulation around the cap
tube usually indicates blockage.