BG801UH Installation Manual

507330-01B Issue 1809 Page 23 of 33
Table 7. Diagnostic Codes for -02 Control
-02 Integrated Control LED Codes
Red LED Flash Code Diagnostic Codes / Status of Furnace
LED Off No power to control or control hardware fault detected
Heartbeat
1
Control powered - displayed during all modes of operation if no errors are detected
1 Flash Reverse line voltage polarity
2 Flashes Improper earth ground
3 Flashes Burner failed to light, or lost ame during heat demand
4 Flashes Low ame signal - check ame 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
1
A “heartbeat” is indicated by a “slow ash” - 1 sec on 1 sec off, repeating
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 rst, 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 8. Diagnostic Codes for -03 Control
-03 Integrated Control LED Codes
Red LED Flash Code
2
Diagnostic Codes / Status of Furnace
LED Off No power to control or control hardware fault detected
Heartbeat
1
Normal operation - idle, continuous fan, cool
Continuous Rapid Flash Call for heat / burner operation
1 Flash Reverse line voltage polarity
2 Flashes Improper earth ground
3 Flashes Burner failed to light, or lost ame during heat demand
4 Flashes Low ame signal - check ame 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
1
A “heartbeat” is indicated by a “slow ash” - 1 sec on 1 sec off, repeating
2
Error codes are indicated by a “rapid ash” - the LED ashes X times at 1/2 sec on, 1/2 sec off, remains off for 3 sec, then repeats
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 rst, LED off for 3 sec, then next error code is displayed, etc. To clear error codes, depress and hold
button longer than 5 seconds.