Goodman HVAC Systems (AC, Furnaces & Heat Pumps)

18 known error codes

1 flash Moderate

Lockout Retry

10 flashes Moderate

Line Voltage Polarity Reversed

2 flashes Moderate

Pressure Switch Stuck Closed

3 flashes Easy Fix

Pressure Switch Stuck Open

4 flashes Easy Fix

Open High Temperature Limit Switch

5 flashes Moderate

Flame Sensed Without Gas Valve Energized

6 flashes Moderate

Ignition Failure

7 flashes Moderate

Gas Valve Fault

8 flashes Easy Fix

Low Flame Current

9 flashes Moderate

Reversed Polarity Detected

E1 Moderate

Compressor Protection Activated

E2 Moderate

Indoor Coil Freeze Protection

E3 Moderate

High Pressure Switch Open

E4 Moderate

Low Pressure Switch Open

E5 Moderate

Low Voltage Protection

Rapid flash Moderate

Flame Detected But No Call for Heat

Steady OFF Moderate

24V Power Absent to Control Board

Steady ON Easy Fix

Normal Call for Heat - No Fault