Consider also refactoring your code like this, to dramatically reduce duplication (and opportunities for typos to slip in):
def runAction(self, event):
path = 'Refrigeration/ChillerWOEntry'
params = {
"chillerID": self.parent.custom.ChillerID,
"chillerName": self.getSibling("ChillerName").props.text,
"wo": self.getSibling("WorkOrder").props.value,
"fromTank": self.getSibling("StartTank").props.value,
"toTank": self.getSibling("EndTank").props.value,
"extraTank1": self.getSibling("EndTank1").props.value,
"extraTank2": self.getSibling("EndTank2").props.value,
"lot": self.getSibling("LotNumber").props.text,
"feedtype": self.getSibling("FeedType").props.text,
"prodtempmin": self.getSibling("ProdTempMin").props.value,
"prodtempmax": self.getSibling("ProdTempMin").props.value,
"jobtype": self.getSibling("JobType").props.value,
"status": self.getSibling("Status").props.value,
"statusreason": self.getSibling("StatusReason").props.value,
"comment": self.getSibling("Comments").props.text,
"timestamp": self.getSibling("LogDate").props.text,
"dt": self.getSibling("MonthYear").props.text,
"user": self.session.props.auth.user.userName
}
system.db.runNamedQuery(path, params)
Consider also reading though this thread, especially this post in particular: