First time poster so hi all.
I have a question about a actuator motor on a heating boiler that is motoring on and off. The pcb supplies voltage to one wire to motor for heating demand and to the other if there is water demand. Whats been happening is that water has leaked into the actuator and is causing it to motor back and forward, dry it out and its ok. There is no earth. My question is why does this happen? Easy to fix by drying it out and fixing leak but was curious as to why it does this.
Many thanks,
Kev

 

Because you got water in the works.
Because water conducts electricity.
Because it is not designed to work with water in it.