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Ignition Control 107163-01
RED LED Flash Code
Off
On
Fast Heartbeat
Slow Heartbeat
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
No Power to Control or Board Fault Detected
Board Fault Detected
Call for Heat / Burner Operation
3
Normal Operation – Idle, Continuous Fan, or Cool
1
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
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.
Diagnostic Codes / Status of Furnace
Notes
Page 44
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