T084_F: Outside Air Sensor Fault
Status
This is a non-critical fault. Outdoor sensor is only used when non-communicating outdoor equipment is being used and the field installed outdoor sensor wired back to the furnace IFC has failed. This fault will not allow for set up of dual fuel balance point setting.
Description
This fault indicates the accessory outdoor air sensor is either open or shorted, or has been removed after being installed.
Expected Operation
The fault "T084_F Outdoor Air Sensor Fault" will be declared but the furnace will continue to operate, however no temperature would be displayed in the EcoNet control center.
Cause
1. Outdoor air sensor was installed and removed without cycling power.
2. Outdoor air sensor or wiring has failed.
3. Bad furnace control board.
Solution
1. If no supply air sensor was ever installed, cycle power to remove fault and check IFC for indication of condensation that may have temporarily tricked IFC into thinking one had been installed.
2. Replace outdoor air sensor.
3. Replace furnace control board.
