CP4 vs CP2 motor stalls?

Tom Blahovici

I frequently image during cold temperatures with my AP600.  A few months ago I updated to a CP4 from a CP2. Two days ago, the temperature was -12C and I received two motor stalls during slewing. In the past I could work at -25C and never got motor stalls. I have low temperature grease in the mount as per APs recommendations.
Is there away I can minimize this occurance?

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