My CMC unit will run one way but not the other? Follow For CMC Marine, please use the following numbers: Sales Phone: 800-654-3697Fax: 580-252-2970 Technical Support Phone: 580-252-1699Fax: 580-252-2970 Related articles My CMC unit is stuck in the up position. CMC Owner's Manual My CMC unit will not run. What should I do? What replacement hydraulic oil do I use on my CMC Product? How do I refill my CMC actuator with fluid? Comments 0 comments Please sign in to leave a comment.