This is from the TMG manual for a code-66
Read the LAST Paraghragh....... It is a TMG my mistake...the slave is throwing the code....read on last paragraph
Description:
FET field protection has shut down.
Causes:
Bad fuse, should be checked for excessive volt drop. Do not check fuse w/ohm meter.
Line contactor tips welded open. Repair line
Verify that there are no motor field shorts. Motor fields should measure 0.6 to 0.7 ohms.
Verify that there are no cable shorts between: B+ and F1 B+ and F2 A2 and F2
A1 and F2 F1 and F2
All of the above to frame
An A66 will be generated in the Slave control anytime the Master control opens the Line contactor (PMT). Both controls interpret the sudden loss of B+ as a 66 code.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.