Lennox EL195UHE Installation Instructions Manual page 43

RED LED
Flash Code
Off
Heartbeat
1
1
2
3
4
5
6
7
8
9
10
11
12
13
Note - 1
Note
Note
TABLE 11
-02 IGNTION CONTROL
Diagnostic Codes / Status of Furnace
No power to control or board fault detected
Control powered - displayed during all modes of operation if no errors are detected
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 minutes
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
Last 10 error codes are stored in memory including when power is shut off to the
unit. - To recall, pressand 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.
Page 43
Notes