Hi Al - I mentioned in earlier post that I've recovered a lot of oil from the pack so far I estimate about 15L that was not needed and this was due to the ICM closing during off cycle. However if what Glenn is saying was implemented and the EKC361 was getting its temp input from the S3 then theoretically it would be open during off cycle as the temp would be above 4 degrees - BUT the way it has been wired means both the EKC controllers are getting there on signal from a digital input off of the CC210 and so when the CC210 is in off cycle the relay to both EKC's is powered down and when that happens they both close shut even if a minimum opening degree is set.