INSTALLER’S GUIDE
The manufacturer has a policy of continuous product and product data improvement
and reserves the right to change design and specifications without notice.
Ingersoll Rand
11819 N. Pennsylvania Street
Carmel, IN 46032
INTEGRATED FURNACE CONTROL ERROR FLASH CODES
Flashing Slow
Normal - No call for Heat
Flashing Fast
Normal - Call for Heat
Continuous ON
Replace IFC
Continuous OFF
Check Power
2 Flashes
System Lockout (Retries or Recycles
exceeded)
3 Flashes
Draft Pressure Error - Possible problems
a) Venting problem
b) Pressure switch problem
c) Inducer problem
4 Flashes
Open High Limit Device
5 Flashes
Flame sensed when no flame should be
present
6 Flashes
115 Volt AC power reversed or Poor
Grounding
7 Flashes
Gas valve circuit error
8 Flashes
Low flame sense signal
9 Flashes
Check Ignitor circuit and Line "N" to
24VAC "Common" voltage (< 2volts)
(possible grounding problem)
ABNORMAL CONDITIONS
IFC ERROR FLASH CODE