Table of Contents
Advertisement
Red LED Flash Code
LED Off
No power to control or control hardware fault detected
Heartbeat
Control powered - displayed during all modes of operation if no errors are detected
1
1 Flash
Reverse line voltage polarity
2 Flashes
Improper earth ground
3 Flashes
Burner failed to light, or lost flame during heat demand
4 Flashes
Low flame signal - check flame sensor
5 Flashes
Watchguard - burner failed to light, exceeded maximum number of retries or recycles
6 Flashes
Not used
7 Flashes
Primary or Secondary limit open or watchguard mode - limit switch open longer than 3 minutes
8 Flashes
Rollout switch open
9 Flashes
Pressure switch failed to close or opened during heat demand
10 Flashes
Watchguard - Pressure switch opened 5 times during one heat demand
11 Flashes
Pressure switch stuck closed prior to activation of combustion air inducer
12 Flashes
Flame sensed without gas valve energized
13 Flashes
Low line voltage
A "heartbeat" is indicated by a "slow flash" - 1 sec on 1 sec off, repeating
1
NOTE: 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.
Red LED Flash Code
2
LED Off
Heartbeat
1
Continuous Rapid Flash Call for heat / burner operation
1 Flash
2 Flashes
3 Flashes
4 Flashes
5 Flashes
6 Flashes
7 Flashes
8 Flashes
9 Flashes
10 Flashes
11 Flashes
12 Flashes
13 Flashes
A "heartbeat" is indicated by a "slow flash" - 1 sec on 1 sec off, repeating
1
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
2
NOTE: 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.
507735-03
-02 Integrated Control LED Codes
Table 18. Diagnostic Codes for -02 Control
-03 Integrated Control LED Codes
No power to control or control hardware fault detected
Normal operation - idle, continuous fan, cool
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
Table 19. Diagnostic Codes for -03 Control
Diagnostic Codes / Status of Furnace
Diagnostic Codes / Status of Furnace
Issue 1933
Page 47 of 53
Advertisement
Table of Contents
