Can spirits affect electrical appliances?

Indeed they can.

What makes me believe they can?

To give but one example, a few years ago I encountered a very small ball of energy, suspended in mid-air, in my home. It was red and it was in my laundry-room at eye-level. It was beside the gas meter, the tumble dryer and the washing machine. It was just a few inches away from my face. I have encountered these entities and their actions before and immediately knew the intention of mischief from this little light and knew I couldn’t let it remain in my home. I didn’t want to let it out of my sight, free to interfere with the electric appliances. I wanted to take it by surprise and remove it from my home before it had the chance to cause damage. Fortunately there was no one around and I was able to give it the non electric shock of its afterlife!  It didn’t take much, just a loud, direct and forceful, ‘I see you!’ after which it immediately vanished. When I see something like this – I think I scare them rather than them scare me. They do not expect to be seen and depart with the proverbial flea in the ear when confronted. Had I allowed it to remain, this ‘bug’ could, and would have, caused chaos, interfering with electrics and costing me a fortune in call-out charges to have things fixed! I believe this was the spirit of a badly behaved, adolescent male. The next day, my lovely friend and neighbour across the road had a series of maintenance company engineers at her home to fix several electrical appliances that had suddenly, one after the other, malfunctioned. Did the cheeky spirit whose intention was mischief or mayhem, go into the next available house after I chased it from mine? Be in no doubt that spirit, being energy, can indeed interfere with anything powered by electricity!