F300e filter clicking

The model number of the pre-filter 203369. You can also call them at 508- 226-7220
Please check this link: Bel-Aire

Neon light on air cleaner does not come on
1. Make sure the furnace or air conditioner fan is running.
2. Make sure the access door is firmly closed.
3. Make sure the On-Off switch is in the On position.
4. On models without the Solid State Performance Indicator, if the electronic cell(s)
are wet, check again in two to three hours.

Link: Manual

Check Page 10
MANUAL

1. Make sure the furnace or air conditioner blower is running.
2. Make sure the access door is firmly closed and latched. If door is not closed properly, an interlock keeps the air cleaner off.

If there is no shorts or bending of the cell plates you have a faulty cell,

In the heat mode your furnace fan operates in a lower speed. when your zone panel purges it powers the G terminal in your furnace, which is high speed. You may have an airflow problem if your EAC is powered directly to an outlet, you may have a bad air pressure switch, or if the eac is wired to the furnace control board, it is mis-wired..more info needed.

The F300E Honeywell Electronic Air Cleaner should only be lit when the fan is running. The light goes out when fan stops, this is normal.

You need to replace the power supply of the unit, Contact your heating and cooling contractor for service on the unit.

the filters are damp, causing the arcing. make sure you remove them and dry them before you place them back in

A newly installed system should still be under the contractor's labor warranty. Call them and ask them to come out to check on the unit and explain what you wrote above. This should cost you nothing and is the best way to get to the bottom of the problem.