Hello,

I have a small issue with the circuit attached,it works ok until input 4 is switched i would like to keep Q2 energized, What i am looking to achieve is hob switch brings in both fans which it does.The light/fan switch brings in bathroom fan and light which it does,but when both fans are running and the light/fan switch is energized the fan (Q2) goes in the off state I would like to avoid this

 Ade

It is exactly what I was looking to achieve

Thank you so much....