Professional Member
Can you guys remember if there was a service bulletin on a code F3.
The F3 code does not exist in the book but shows up at times.
Seems like I remember a bulletin but not sure????????????
"Dying aint much, its living thats hard." (Josey Whales)
Professional Member
"F3" code is low oil temp start inhibit. Triggered by temperature of less than 100 degrees at 4RT7 temp sensor. I've never seen one shut down while running because of this, but I reckon it could. Once temp goes back above 100, restart is allowed. Info in Trane service bulletin CVHE-SB-22A.
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