Troubleshooting - Honeywell TrueCLEAN Professional Installation Manual

Troubleshooting

WARNING: Electrocution Hazard.
Failure to follow this warning could result in personal injury or death.
The following procedures will expose electrical components. Before servicing, always turn off main power to
system. There may be more than one disconnect switch.
CAUTION: Personal Injury Hazard.
Failure to follow this caution may result in personal injury.
The following instructions are for use by qualified personnel only.
The Honeywell Enhanced Air Cleaner is equipped with a power indicator light located on the door (see Fig. 17 on
page 19). This power indicator light illuminates when the Honeywell Enhanced Air Cleaner door is installed, the
power switch is in the on position, AND the air handler blower or furnace blower is running and (for FH8000A)
airflow is sensed. If the power indicator light is not illuminated, follow the troubleshooting steps below.
1. Check that the Honeywell Enhanced Air Cleaner door is installed.
NOTE: A magnet in the door (see Fig. 16 on page 19) is used to activate a safety switch in the power supply
when the door is installed. The power supply will not energize the air cleaner unless the safety switch is
activated.
2. Check that the Honeywell Enhanced Air Cleaner power switch is in the ON position.
3. Confirm that the heating and cooling system blower is operating.
4. Confirm that power is provided.
Models FH8000A: 208 to 230 VAC.
Models FH8000F: 120 VAC.
5. Models FH8000A ONLY: Confirm that the airflow sensor cable is connected to the power supply (see Fig. 11
on page 15).
NOTE: Even though power is supplied to the Honeywell Enhanced Air Cleaner, it will not turn on unless the
airflow sensor senses airflow or the airflow sensor's bypass plug is inserted.
a. If still not functioning, disconnect the airflow sensor cable and the power cord from the power supply.
b. Remove the enhancement module from the Honeywell Enhanced Air Cleaner cabinet and inspect the
airflow switch (see Fig. 14 on page 16).
c. Confirm the airflow switch is properly seated in its bracket and the airflow switch cable is connected to
the back of the switch. Replace the enhancement module.
d. Reconnect the power cord to the power supply and temporarily insert the airflow sensor disable
jumper (from parts bag).
e. If the power indicator light illuminates, then replace the airflow sensor.
TrueCLEAN™ Enhanced Air Cleaner 68-0308EFS—03
23