Integrated Furnace Control Led Flash Codes; Fault Code Recovery; Fault Code Reset - Trane *UH2B060A9V3VA Service Facts

IFC Error Flash Codes
MODEL
*UH/DH2B060A9V3VA
*UH/DH2B080A9V3VA
*UH/DH2B080A9V4VA
*UH/DH2C100A9V4VA
*UH2C100A9V5VA
*UH/DH2D120A9V5VA
* - First letter may be "A" or "T"

INTEGRATED FURNACE CONTROL LED FLASH CODES

RED LED - LitePort
2 Flashes ---
3 Flashes ---
4 Flashes ---
5 Flashes ---
6 Flashes ---
7 Flashes ---
8 Flashes ---
9 Flashes ---
GREEN LED - STATUS
Slow Flash
Fast Flash
GREEN and RED
LED's on Continuously

FAULT CODE RECOVERY

On power up, last 4 faults, if any, will be flashed on the red
LED. The newest fault detected will flash first and the oldest
last. There will be a 2 second delay between fault code
flashes. Solid red LED error codes will not be displayed.
The Green LED will be on solid during last fault recovery. At
any other time the control is powered, the Green LED indica-
tor light will operate as shown in the table above and the red
LED will flash LitePort data (one flash) every 20 seconds.
INTEGRATED FURNACE CONTROL
GREEN "STATUS" LED FLASH CODES
Flashing Slow ---
Flashing Fast ---

Fault Code Reset

The last 4 fault codes can be erased from memory by power-
ing up the control with "G" energized and then applying "R"
to the "W1" terminal 3 times within 6 seconds. The control
will acknowledge the reset by turning on the red LED for
2 seconds.
X343070P08
CFM VS. TEMPERATURE RISE
800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400
63 56 51 46 42
68 61 56
TM DATA - 1 FLASH EVERY 20 SECONDS
RETRIES OR RECYCLES EXCEEDED
INDUCER OR PRESSURE SWITCH ERROR
OPEN LIMIT OR ROLLOUT SWITCH
FLAME SENSED WHEN NO FLAME SHOULD BE PRESENT
LINE REVERSE POLARITY
GAS VALVE CIRCUIT ERROR
WEAK FLAME
OPEN INDUCER LIMIT ERROR
NORMAL, NO CALL FOR HEAT
NORMAL, CALL FOR HEAT PRESENT
FUSE OPEN OR INTERNAL CONTROL FAILURE
Normal - No call for Heat
Normal - Call for Heat
Cubic Feet Per Minute (CFM)
39 36 34
52 48 45 42 40
65 60 56 53 50
67 63 59
Red LitePort
Green Status LED
*U/DH Integrated Furnace Control
Service Facts
47 44 42 40 38
56 53 51 48 46
TM
LED
37 35
44 42
27