Lennox EL196UH030XE24B Information page 10

RED LED Flash Code
Off No Power to Control or Board Fault Detected
On Board Fault Detected
3
Fast Heartbeat Call for Heat / Burner Operation
1
Slow Heartbeat Normal Operation – Idle, Continuous Fan, or Coo
2
1 Flash Reverse Line Voltage Polarity or Phasing of 120V power
2
2 Flashes Improper Earth Ground
2
3 Flashes Burner failed to light, or lost flame during heat demand
2
4 Flashes Low Flame Signal - check flame sensor
2
5 Flashes Watchguard - burner failed to light, exceeded maximum number of retries or recycles. 1 hour lockout.
2
6 Flashes Not Used
2
7 Flashes Primary or Secondary Limit Open or Watchguard Mode - Limit Switch Open longer than 3 minutes
2
8 Flashes Rollout Switch Open
2
9 Flashes Pressure Switch failed to close or opened during heat demand, inducer on.
2
10 Flashes Watchguard - Pressure Switch opened 5 times during one heat demand
2
11 Flashes Pressure Switch stuck closed prior to activation of combustion air inducer
2
12 Flashes Flame Sensed without gas valve energized
2
13 Flashes Low Line Voltage
Note 1 A slow heartbeat is indicated by 1s on / 1s off. It is used for idle, continuous fan and cool modes.
Error codes are indicated by a "Rapid Flash" - the LED flashes X times at 1/2 sec on 1/2 sec off, remains
Note 2
off for 3 sec, then repeats
Note 3 A fast heartbeat is indicated by 0.5s on / 0.5s off. It is only used during a heat call.
Last 10 error codes are stored in memory including when power is shut off to the unit. - To recall, press
Note 4 and release button, most recent will be displayed first, LED off for 3 sec, then next error code is displayed,
etc. To clear error codes, depress and hold button longer than 5 seconds.
IGNITION CONTROL 107163-01
Push Button
Diagnostic LED
Error Recall
FIGURE 5
TABLE 5
Ignition Control 107163-01
Diagnostic Codes / Status of Furnace
Notes
PARKS
Heating Blower Off
Delay Selector Switch
Page 10
Ignition Control 107163-01
The heat fan-on time of 30 seconds is not adjustable. The
cool fan-on time of 2 seconds is not adjustable. The heat
fan-off delay (amount of time that the blower operates after
the heat demand has been satisfied) may be adjusted by
changing the two position dip switch on the integerated
control, to one of four selections. Blower off delay is factory
set at 90 seconds. For other blower off delay settings,
please refer to the following chart:
Blower Delay Select
SW2-1
60
90
120
180
Factory Setting is 90
SW2-2
OFF ON
OFF OFF
ON OFF
ON ON