Goodman Furnace Error Codes

On this page you can find Goodman furnace error codes which you may see during its operation time in case of any faults. Goodman furnace can display some letters and numbers or demonstrate flashes on the screen, depending on the modification and furnace type.

There are several furnace modifications presented in the code tables. Besides Goodman fault codes, there are the messages which can also appear, status and data related to these codes. This information can give you the idea about any necessary further actions – for example, 3 flashes mean that Goodman pressure switch stuck open, and 2 flashes mean the same part stuck closed.

Goodman CVC995 Furnace Error Codes

Steady on Normal operation
OFF Control Failure
1 Flash System lockout (Retries exceeded)
2 Flashes Pressure switch stuck closed
3 Flashes Pressure switch stuck open
4 Flashes Open high limit
5 Flashes Flame sense without gas valve
6 Flashes Open rolloutor open fuse
7 Flashes Low flame signal
Continuous/Rapid Flashes Reversed 115 vac polarity

Goodman DDS series Furnace Error Codes

Temp Display Message Scrolled Message Status
Not Displayed Not Displayed Power Up
Not Displayed Not Displayed Normal/Standby
EE INTERNAL FAULT Internal Control Fault/No Power
EO LOCKOUT Lockout Due to Excessive Retries
E1 PS1 CLOSED Low Stage Pressure Switch Stuck Closed at Start of Heating Cycle
E2 PS1 OPEN Low Stage Pressure Switch Stuck Open
E3 HIGH LIMIT OPEN Open High Limit Switch
E4 IMPROPER FLAME Flame Detected When no Flame Should be Present
Not Displayed Not Displayed Open Fuse
E6 WEAK FLAME Low Flame Signal
E7 IGNITER FAULT Igniter Fault or Improper Grounding
E8 PS2 CLOSED High Stage Pressure Switch Stuck Closed at Start of Heating Cycle
E9 PS2 OPEN High Stage Pressure Switch Stuck Open
EA REVERSED PLTY Reversed 115VAC Polarity

Goodman GDH series Furnace Error Codes

Temp Display Message Scrolled Message Data 1 and Data 2 Miswire
dO NO NET DATA Data not yet on Network
d4 INVALID MC DATA Invalid Memory Card Data
bO MOTOR NOT RUN Blower Motor Not Running
b1 MOTOR COMM Blower Communication Error
b2 MOTOR MISMATCH Blower Motor HP Mis-Match
b3 MOTOR LIMITS Blower Motor Operating in Power, Temperature, or Speed Limit
b4 MOTOR TRIPS Blower Motor Current Trip or Lost Rotor
b5 MTR LCKD ROTOR Blower Motor Locked Rotor
b6 MOTOR VOLTS Over/Under Voltage Trip or Over Temperature Trip
b7 MOTOR PARAMS Incomplete Parameters Sent to Motor (bit 10)
b9 LOW ID AIRFLOW Inadequate Airflow