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View Full Version : Error code 66 in Thermo King SB-III Whisper SR+







Thanh Tu
08-06-2015, 08:55 AM
Hi, I have a trouble with error 66, I have enough oil in the machine and replace the oil level sensor new but it still error. Is there other ways to fix it?
My mail is in my vcard if you could send me the way to fix it. Thank you very much!

cadwaladr
08-06-2015, 09:01 PM
if you clear the code does it come back? if so your problem is the wiring to the switch

IRMechanik
09-06-2015, 01:34 AM
The oil level switch in normally open and closes on low oil level. Unplugging the switch will verify the wiring. They usually trip at 3-4 L low, somewhere around the bottom of the hash marks. Much less if it's on a steep incline loading ramp.

Shawn Carvin
14-06-2015, 09:07 AM
Maybe you can test the micro pin