Why is the return air temperature not reaching the set point on my Thermo King Automobile Accessories?
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Keith AlvaradoAug 18, 2025
If your Thermo King Automobile Accessories unit's return air temperature is off, it could be due to several reasons. The unit may be in defrost or has just completed a defrost cycle, during which the temperature will increase slightly. Give it some time after the defrost cycle to see if the temperature returns to the desired range. Alternatively, the evaporator might be blocked with frost; in this case, start a manual defrost cycle. If the unit hasn't had time to cool the cargo, refer to the load log history and make the necessary adjustments. Also, check the cargo compartment for air leaks, fixing any issues you find.
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Tiffany BarajasNov 2, 2025
What to do if the return air temperature is not in the desired range on my Thermo King Automobile Accessories?
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Jason ReidNov 2, 2025
If the return air temperature reading on your Thermo King Automobile Accessories unit isn't within the desired range, several factors could be at play. First, the unit might not have had enough time to cool the cargo. Review the load log history for temperature records and ensure the cargo compartment was properly pre-cooled. Also, check that the evaporator fans are working and circulating air correctly, as poor air circulation due to improper loading or shifting cargo can also be a cause. Inspect the cargo box for air leaks, such as doors not fully closed or damaged seals, and repair if necessary. If the unit has just completed a defrost cycle, monitor the temperature to see if it returns to the desired range. If the evaporator is plugged with frost, initiate a manual defrost cycle. Conti...
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