Since the manufacturer has a policy of continuous product and product data improvement, it reserves the right to
change design and specifications without notice.
Trane
6200 Troup Highway
Tyler, TX 75707
For more information contact
your local dealer (distributor)
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 Temperature Limit Circuit
5 Flashes --- Flame sensed when no flame should be present
6 Flashes --- 115 volt AC power reversed, poor grounding or system voltage too low
7 Flashes --- Gas valve circuit error
8 Flashes --- Low flame sense signal
9 Flashes ---
Check Ignitor Circuit and Line "N" to 24VAC "Common" voltage (≤ 2 volts)
[possible grounding problem]
Installer’s Guide
IFC ERROR FLASH CODES
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