Lennox EL196UHE Series Information page 10

RED LED Flash Code
Off
On
Fast Heartbeat
3
Slow Heartbeat
1
1 Flash
2
2 Flashes
2
3 Flashes
2
4 Flashes
2
5 Flashes
2
6 Flashes
2
7 Flashes
2
8 Flashes
2
9 Flashes
2
10 Flashes
2
11 Flashes
2
12 Flashes
2
13 Flashes
2
Note - 1
Note - 2
Note - 3
Note - 4
IGNITION CONTROL 107163-01
Diagnostic LED
Push Button
Error Recall
FIGURE 5
TABLE 5
Ignition Control 107163-01
No Power to Control or Board Fault Detected
Board Fault Detected
Call for Heat / Burner Operation
Normal Operation – Idle, Continuous Fan, or Cool
Reverse Line Voltage Polarity or Phasing of 120V power
Improper earth ground
Burner failed to light, or lost flame during heat demand
Low flame signal – check flame sensor
Watchguard – burner failed to light, exceeded maximum number of retries/recycles, 1 hour lockout
Not used
Primary or Secondary limit switch open or Watchguard mode – Limit Switch open longer than 3
minutes
Roll-out Switch Open
Pressure Switch failed to close or opened during heat demand, inducer on
Watchguard - Pressure switch opened 5 times during a single heating demand
Pressure switch stuck closed prior to activation of Combustion Air Inducer
Flame sensed without gas valve energized
Low line voltage
Notes
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 ½ second on ½ second off,
remains off for 3 seconds then repeats.
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, 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.
PARKS
Heating Blower Off
Delay Selector Switch
Page 10
Diagnostic Codes / Status of Furnace
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 af-
ter 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 facto-
ry set at 90 seconds. For other blower off delay settings,
please refer to the following chart:
Blower Delay Select
60
90
120
180
Factory Setting is 90
SW2-1 SW2-2
OFF ON
OFF OFF
ON OFF
ON ON