Led Troubleshooting - Trane ACONT900AC43UA Service Manual

LED Troubleshooting

Service Indications
Indoor Blower On/
Air Cleaner First Green LED Off
Indoor Blower ON/
Air Cleaner First Green LED ON,
Not Flashing
HIGH VOLTAGE WILL BE PRESENT FOR THE REMAINDER OF THIS TEST.
Indoor Blower ON/
Three Yellow LEDs Flashing
Indoor Blower ON/
Three Red LEDs Flashing
WARNING
Electronic Air Cleaners
Service Checks
1. Check that the Power Door is installed correctly
and the latches closed. The actuator tab must
engage the door safety switch.
2. Check the air cleaner power/control cable.
3. Push the power button once.
4. Check for 24 Volts AC at the Air Cleaner power
plug.
1. Air Cleaner is in the 10 [12] minute dry cycle.
2. No call for Air Cleaner Operation due to no 24
Volts AC call going to G / W or request through the
data line from the (Communicating System) Furnace
or Air Handler.
3. There is no High Voltage being provided to the
Field Charger or the Collection Cells. Inspect the
Field Charger assembly and Collection Cells for any
foreign material that may be lodged in them. Clean
as needed, reassemble and test.
4. If the Air Cleaner still does not work, remove
Power Door from the Air Cleaner housing.
5. With the indoor blower running and the power cord
plugged into the Air Cleaner, use a tool to activate
the Power Door interlock switch. Push the power
button once. The first Green LED should come on
and after the time delay it should start to flash. If the
first Green LED does not start to flash the fault is
with the Power Door.
1. Remove the Power Door, Field Charger & Collec-
tion Cells. Inspect for foreign material,
clean if needed.
1. This indicates service is needed. See Service
Facts for fault code information.
AC - A 29