Error 107: Repetitive Arcing; Error 108: Hv Output Fault; Error 109: Input Current Fault - Trane ACONT900AC43UA Service Manual

Error 107: Repetitive arcing

Comfort Control = Err 107
User Interface = No Alert Displayed
Air Cleaner Fault LED = YEL-2, 3 & 4 ON
Problem Description
• Repetitive high voltage arcing detected
- If the unit detects 10 consecutive cleaning cycles
which were interrupted because of an arc, the unit will
go into a 1 hr. lockout period
Possible Causes/Solutions
• Dirty collection cells, field charger or prefilter; clean
and retest
• Wet collection cells, field charger or prefilter; dry and
retest
• Arcing through field charger plastic frame; replace field
charger

Error 108: HV output fault

Comfort Control = Err 108
User Interface = No Alert Displayed
Air Cleaner Fault LED = YEL-2 ON, 3 & 4 OFF
Problem Description
• High voltage off when it should be on
Possible Causes/Solutions
• Dirty collection cells, field charger or prefilter; clean
and retest
• Wet collection cells, field charger or prefilter; dry and
retest
• Arcing through field charger plastic frame; replace field
charger
• Check the power door operation by referring to
"Testing the Power Door" of the air cleaner's Service
Facts
RED-1, 2 & 3 OFF
RED-1 ON, 2 & 3 OFF
Alert Code Response
Error 108: HV output fault
Comfort Control = Err 108
User Interface = No Alert Displayed
Air Cleaner Fault LED = YEL-2 ON, 3 & 4 OFF
Problem Description
• High voltage output is at least 10% less than selected
output voltage (9.6kv, 9.0kv or 8.0kv)
Possible Causes/Solutions
• Remove air cleaner power door and check output
voltage, if voltage is still less low, replace air cleaner
power door; if voltage is correct, check collection cells
and field charger
Error 108: HV output fault
Comfort Control = Err 108
User Interface = No Alert Displayed
Air Cleaner Fault LED = YEL-2 ON, 3 & 4 OFF
Problem Description
• High voltage output is at least 10% more than
selected output voltage (9.6kv, 9.0kv or 8.0kv)
Possible Causes/Solutions
• Check for arcing through the collection cells and field
charger
• Check door operation by referring to "Testing the Door"
of the air cleaner's Service Facts

Error 109: Input current fault

Comfort Control = Err 109
User Interface = No Alert Displayed
Air Cleaner Fault LED = YEL-2 & 3 ON, 4 OFF
Problem Description
• Input current too low
Possible Causes/Solutions
• Check collection cells and field charger connection
pins
RED-1 & 2 ON, 3 OFF
RED-1, 2 & 3 ON
RED-1 & 2 ON, 3 OFF
R - A 15