Lennox EL196UH030XE24B Information page 8

TABLE 3
1/4" QUICK CONNECT TERMINALS
120HUM Humidifier 120VAC
LINE 120VAC
XFMR Transformer 120VAC
CIRC Indoor blower 120VAC
EAC Indoor air quality accessory 120VAC
NEUTRALS Common 120VAC
HUM24 Humidifier 24VAC
3/16" QUICK CONNECT TERMINALS
COOL Cooling tap 24VAC
HEAT Heating tap 24VAC
FAN Continuous blower 24 VAC
PARK (no power) Park terminal for unused speed taps
FS Flame sense
24 COM Common 24VAC
The integrated control is equipped with an LED light for troubleshooting. The diagnostic codes are listed below in table 4.
RED LED
2
Flash Code
Off
1
Heartbeat
Continuous Rapid
Flash
1
2
3
4
5
6
7
8
9
10
11
12
13
Note 1
Note 2
Note 3
Ignition Control 103217-03
No power to control or board fault detected
Normal Operation - Idle, Continuous Fan, Cool
Call For Heat / Burner Operation
Reverse Line Voltage Polarity
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 or recycles.
Not Used
Primary or Secondary Limit Open or Watchguard Mode - Limit Switch Open longer than 3 min­
utes
Rollout Switch Open
Pressure Switch failed to close or opened during heat demand
Watchguard - Pressure Switch opened 5 times during one heat demand
Pressure Switch stuck closed prior to activation of combustion air inducer
Flame Sensed without gas valve energized
Low Line Voltage
A "Heartbeat" is indicated by a "Slow Flash" - 1 sec on 1 sec off, repeating
Error codes are indicated by a "Rapid Flash" - the LED flashes X times at 1/2 sec on 1/2 sec
off, remains off for 3 sec, then repeats
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.
TABLE 4
Diagnostic Codes / Status of Furnace
Notes
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