double heating control problems

HI there

I have written a program where milk is heated in a double boiler first to 85 Deg C and then cooled to 42 Deg C

When I run the simulator the program runs perfectly, however when I run the operation the unit shuts off the gas solenoid when I reach the 42 Deg C already instead of staying on unit the 85 Deg C is reached.

Why would a Q2 contact close in reality when i doesn't in Simulator mode.

Thanks in advance for you help

Here it is,

Can email you the program too since the forum doesn't allow that file extension ( Lsc)  to be attached

OFF TOPIC: FORUM USAGE

The forum allows archived files (ZIP / RAR / TAR).
Consider packing the file you wish to share into a zipped file.

Here it is again

Any help will be greatly appreciated 

Thank you