I have a HoneyWell F300E electronic air cleaner, installed on a furnace in a house I just bought. I have never owned one of these things before. The filter arcs and makes sparking noises constantly, mostly at start up. I took out both filers and the both cartridges and cleaned them (they looked very dirty)I inspected the ionizing wires, and they are all in tact. There were fins on the cartridges that looked slightly bent or out of alignment but none of them were touching other fins or the casing. When I re-installed the filters and cartridges the sparking noise continued, though was reduced a bit, but after about 2 weeks it's back to arcing and sparking noise very frequently again. I have no idea what is causing this, any help would be appreciated.

They must be very very clean. Use a strong detergent that will dissolve oils and greases that can be airborne off humans and pets. Dust is also collected on the filters and must be remove. These things are designed to be removed from the unit and taken out for cleaning once or twice a year. If you do not use the standard filter BEFORE them they will clog up and start arcing very quickly. They must be soaked in detergent, gently scrubbed and rinsed with plenty of fresh water. Then they must be dried before putting them back in the unit.


If they still arc, and you have made sure there are no bent elements, look again, something is causing the "air gap" to be closer than it is designed to be.


Good luck.

Continuous snapping is not normal .Remove both electronic cells. Make sure that there is no hair, dirt, sand or any debris on the bottom inside the Electronic air cleaner. If there is, remove what you can by hand. If a lot of debris is left in bottom of the Air Cleaner, you may want to use a vacuum attachment to see if you can vacuum up what you can.