Multiple Items, will be a long read... Alarm at 3;30AM, 2 Stage Fan Clutch, and other

[KenEhresman]

SO I guess now we just need to know if any has the code for the DDEC to see what temps set these outputs.... and I thought I had you stumped lol....I should have known better :-)

[Gil_J]

Ken, see previous post for temp set points. My Detroit shop told me these were hard coded, which seems strange. Pittsburgh Power can probably change them, if anyone can. Once you fix the low speed problem, all should be fine.

[Gil_J]

For those following this thread, a fan that won't turn on will seldom be a problem associated with the DDEC or its wiring. A failure of the DDEC control or its wiring will result in the fan operating.

[KenEhresman]

relays replaced.... no noticeable change I can see... maybe runs 5 degrees cooler? Will take old units ad break off leg and take for a ride on low speed one to see what the temps run with constant fan on low and report back in a week or 2...