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[EnergyPlus_Support] ** Severe ** FindRootSimpleController: Root finder failed at RUNPERIOD, 16:00:0



Hi I am facing a severe fatal error with my program. The error is 
 ** Severe  ** FindRootSimpleController: Root finder failed at RUNPERIOD, 16:00:00.0 - 16:15:00.0
   **   ~~~   **  Controller name=AHU COOLING COIL CONTROLLER
   **   ~~~   **  Controller action=Reverse action
   **   ~~~   **  Root candidate x=9.998979999999999E-009 does not lie within the lower/upper brackets.
   **   ~~~   **  Upper bracket is x=0.000000000000000
   **  Fatal  ** Preceding error causes program termination.
   ...Summary of Errors that led to program termination:
   ..... Reference severe error count=1
   ..... Last severe error=FindRootSimpleController: Root finder failed at RUNPERIOD, 16:00:00.0 - 16:15:00.0

I tried debugging in the code but couldn't find what exactly is making it crash. If anyone could help me in this it would be really grateful.

Thanks in advance!



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