I got my Delta 20 controller to drip feed this week. After I ran my dripped program, I ran a couple of stored programs. I went to run the same drip program and as soon as I hit the cycle start button, I get a fault 136 Premature End. How can I clear this code or what does it mean? Tried to searching the web for a list of faults and couldn't find anything. Thanks in advance for any help.