lanman June 19, 2008 Share June 19, 2008 I want my main lights (LT1, LT2, and LT3) to turn off if it gets over 82 degrees. It does... but then the program comes around to the If Time statements, and turns them back on. If Time > 16:00 Then LT1 ON If Time > 23:00 Then LT1 OFF If Time > 16:01 Then LT2 ON If Time > 23:00 Then LT2 OFF If Time > 16:02 Then LT3 ON If Time > 23:00 Then LT3 OFF If Time > 15:00 Then AC1 ON If Time > 23:59 Then AC1 OFF If Time > 15:00 Then AC2 ON If Time > 23:58 Then AC2 OFF If Time > 23:05 Then REF ON If Time > 14:45 Then REF OFF If Temp > 82.0 Then LT1 OFF If Temp > 82.0 Then LT2 OFF If Temp > 82.0 Then LT3 OFF HELP!!! Thanks, bob Link to comment Share on other sites More sharing options...
dtfleming June 19, 2008 Share June 19, 2008 (edited) they come back on at the programmed time? or they are coming back on with the tank temp still over 82. Edited June 19, 2008 by dtfleming Link to comment Share on other sites More sharing options...
jamesbuf June 19, 2008 Share June 19, 2008 I do this: If Temp > 81.0 Then MHL OFF Max Change 90M Then MHL OFF So if the temp hits 81 degrees, the metal halides are told to shut off for 90 minutes regardless of the temp. That usually gives the fan enough time to get the water down a full degree or so. That way the MH isn't turning off and on by having the temp fluctuate between 79.9 and 80.1 degrees. Link to comment Share on other sites More sharing options...
YBeNormal June 19, 2008 Share June 19, 2008 I use the same command but I have two banks of T5 lights per tank and have them staggered so the actinics turn off at 82 and the other bulbs at 82.5. I have them set to stay off for 30 minutes. Without the max change command the lights would flicker on and off when the temp threshold was reached. Link to comment Share on other sites More sharing options...
dtfleming June 20, 2008 Share June 20, 2008 I entered max change command and I get an error message Link to comment Share on other sites More sharing options...
jamesbuf June 20, 2008 Share June 20, 2008 I entered max change command and I get an error message Copy and paste exactly what you wrote. It also be directly after the "if" statement like I showed above. Link to comment Share on other sites More sharing options...
lanman June 20, 2008 Author Share June 20, 2008 (edited) Copy and paste exactly what you wrote. It also be directly after the "if" statement like I showed above. Me, too: If Temp > 82.0 Then LT1 OFF Max Change 30M Then LT1 OFF \\ Error: Expected 'M' in Max Change If Temp > 82.0 Then LT2 OFF Max Change 30M Then LT2 OFF \\ Error: Expected 'M' in Max Change If Temp > 82.0 Then LT3 OFF Max Change 30M Then LT3 OFF \\ Error: Expected 'M' in Max Change bob *EDIT* Pulled out the manual - it wants a space. Max Change 30 M Then LT1 OFF Edited June 20, 2008 by lanman Link to comment Share on other sites More sharing options...
jamesbuf June 20, 2008 Share June 20, 2008 oops. Sorry. I just checked my code and there is a space between 90 and M. Here it is directly copy and pasted from my code: If Temp > 81.0 Then MHL OFF Max Change 90 M Then MHL OFF Link to comment Share on other sites More sharing options...
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