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View Full Version : Thermo king sb200 code 41 ??







vincent1961
17-08-2016, 03:39 PM
My Thermo king SB200 throws a code 41 check engine temperature, I check engine temp and it's fine, it's always between 198f and 203f , I put a new coolant temp sensor in and it still does the same thing, it does not do all the time, does anybody know what I can check to fix it?

cadwaladr
18-08-2016, 12:49 AM
Head gasket issues with the engine,seven year warranty get it checked by a dealer asap

vincent1961
18-08-2016, 01:14 AM
I put a new head gasket on 2 months ago, it does not build up pressure , heat up or boil out the overflow, and it does not loose any antifreeze anywhere, it stays full of antifreeze I been checking it weekly.

cadwaladr
18-08-2016, 01:29 AM
Maybe it's best to get a download on it to see what's happening? it needs diagnosing for sure.

500959
04-02-2017, 01:19 PM
hi im new on this im looking for sb200 brochure ,specs guide thanks