lsayre wrote:Perhaps the problem is compounded for the AHS by the manual insisting that the LC setpoint be maintained at (from memory here) between 140 degrees and 120 degrees. This narrow range of temperature setpoint options may not be sufficient to cover all of the various coals available.
One thought I had back many pages ago was that it was perhaps possible that the factory had used a incorrect/mismatched thermocouple wire type. The T/C wire must match what is programmed in the controller and there are many types of T/C wire out there.
Is it possible that back when AHS ownership transferred that the new owner "goofed"
If all AHS owners would check the color of each of the 2 wires between the T/C and the 16C controller and report back, we might see if that could be an issue. Could be Type J,white and red...or Type K, yellow and red...or who knows???
Then, using the 16C's programming menu check and read if the "Input" matches the type T/C wire found.(J or K)
You want the 16C setting to match the T/C wire that you found on your boiler.
For help checking and changing programming there is a Quick Start Guide online at Dwyer... http://www.dwyer-inst.com/PDF_files/4C-8C-16C-QuickStart_IOM.pdf