CIBSE Loads - Fifty Iterations - temperatures not balanced

[bootsam]

Anyone have any ideas what this means?

[Complex Potential]

If it's on CIBSE Cooling then it probably means there's a room somewhere with extremely high temperatures or some other instability which is preventing the engine from converging on a solution.

Check your templates to see if you have a gain input incorrectly (having W/m2 instead of W is a classic). Otherwise, look carefully at your model geometry. Is there a small and highly glazed perimeter zone somewhere with no ventilation or cooling perhaps?

[bootsam]

Thanks CP.

Found it. Sneaky little small room (cup'd) which had accidentally been given full office loads in watts. So I had basically turned it into an oven. Good job the occupancy was zero.

God bless tabular data.

[mike_6690]

I have the same issue with the fifty iterations - temperatures not balanced, however this is happening on both CIBSE heating and cooling load calcs.I also have checked and do not have any excessive internal gains applied.
Any ideas would be great?

Thanks