hi all i`m new with this 4008H equipments i`m facing aproblem with conductivity that gois down when ever the tmp get stable also in same time there was aproblem with this BVT module that i can read information at the monitor of the module but nothing on the main screen , today i noticed that the main system fan is not operating i detect the outpot voltage from power supply to the mother board of the monitor i found that the 5 v and 12 v are there but no 24 v , NOTE : the monitor turns on some times but goes off also tha fan do the same some times too . i`m really getting confused now is my oreginal problem with conducivity has any thing to do with this 24 v ????
Originally posted by hossam eldeen: hi all i`m new with this 4008H equipments i`m facing aproblem with conductivity that gois down when ever the tmp get stable also in same time there was aproblem with this BVT module that i can read information at the monitor of the module but nothing on the main screen , today i noticed that the main system fan is not operating i detect the outpot voltage from power supply to the mother board of the monitor i found that the 5 v and 12 v are there but no 24 v , NOTE : the monitor turns on some times but goes off also tha fan do the same some times too . i`m really getting confused now is my oreginal problem with conducivity has any thing to do with this 24 v ????
Is it a 24v high or low alarm. If the fan is not working K1 (main relay) is not energizing therefore the fan will not come on. I would try changing the power control board located in the power supply.
