Turn on your furnace or air conditioner blower if the electronic air cleaner does not operate. Close and latch the air cleaner's access door firmly as an interlock may prevent the air cleaner from operating.
Turn off the air cleaner for two to three hours if you hear a frequent snapping sound. While this sound is normal to hear occasionally, hearing it often may mean the electronic cells are wet from washing and need time to dry.
If this doesn't resolve the issue, check the cells for bent plates or broken ionizer wires. Contact a heating contractor for repair.
Turn on your air conditioner or furnace is the air cleaner's neon light does not light up. Close the access door firmly.
Turn the "On-Off" switch to "On".
Call your electronic air cleaner dealer or a heating contractor if you smell a strong ozone odor, an electrical chemical smell that is difficult to describe but distinct when encountered.