IMPORTANT: Software upgrades made to units with previous software revisions are not covered by a warranty Software should be replaced with software revision (or later) shown in the table. If the unit has a Thermo King alternator and software earlier than software revision shown in the table, the The 120 amp Thermo King Alternator is P/N 41-6782.ģ.
The 65 amp Thermo King Alternator is P/N 41-6781. The 37 amp Thermo King Alternator is P/N 41-6780. On the side of the alternator that lists the amp rating and the service part number. Check to see if the unit has a new Thermo King alternator, which is painted black and is identified by a label If a unit equipped with either of these controllers records Alarm Codes 28 and 35 during a Full Pretrip Test, checkġ. The following table shows the earliest software revisions that areĬontroller Earliest Software Revision Compatible with Thermo King Alternators Units equipped with Thermo King alternators. The software has been changed to allow for the lower current draw and will not record Alarm Codes 28 and 35 on Lower current draw causes the software to record Alarm Codes 28 and 35. This happens because units with Thermo King alternators draw less current than units with the Australian BoschĪlternators while the Run Relay Circuit is being tested during the non-running part of the Full Pretrip Test.
Subject: Alarm Code 35 (Run Relay Circuit) on Microprocessor Units with Thermo O ya, and all the wiring tests out good, relay tests good, and run solenoid tests good. I heard something about a software update that widens the acceptable range for current draw, but I can't find anything for sure and my dealer won't volunteer any info, and taking the unit there is not a possibility.Īnybody know about this update, or know anything else that could be the issue? I currently have 2 that will keep throwing the code 35 even with a freshly rebuilt relay board. They will pass a running pretrip without problem, but with a standing pretrip, it will almost immediately fail on code 35 (run relay circuit.) This is only on some, and most I have found issues with the current shunt and that cleared up the problem.
Lately we have been processing some tri-temp tK units through our shop from a dedicated fleet and I am having a problem with the units. A little background, I work for Crete/Shaffer trucking, and generally only see single temp units, most of which are carrier.
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