Haier GE NF80LS Service Manual page 8

The integrated control is equipped with an LED light for troubleshooting. The diagnostic codes are listed in Table 4 or Table
5.
Red LED Flash Code
2
Off
Heartbeat
1
1
2
3
4
5
6
7
8
9
10
11
12
13
1 A "Heartbeat" is indicated by a "Slow Flash" - 1 sec on 1 sec off, repeating
2 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
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.
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 24VAC
PARK (no power) Park terminal for unused speed taps
FS Flame Sense
24 COM Common 24VAC
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
Soft lockout - burner failed to light, exceeded maximum number of retries or recycles
Not Used
Primary or Secondary Limit Open or Soft Lockout Mode - Limit Switch Open longer than 3 minutes
Rollout Switch Open
Pressure Switch failed to close or opened during heat demand
Soft lockout - 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 4. -02 Control Diagnostic Codes
Table 3.
Diagnostic Codes / Status of Furnace
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