Goodman Air
Conditioner Error Codes
Error Code
|
Problem
|
A2
|
Shorted sensor./Open sensor./Sensor disconnected./Sensor
out of range.
|
A3
|
Shorted sensor./Open sensor./Sensor disconnected./Sensor
out of range.
|
E5
|
Short in low voltage wiring.
|
EE
|
Compressor relay contacts welded.
|
b0
|
Indoor blower motor problem./Communications errorbetween
indoor and outdoor unit.
|
b9
|
Indoor blower motor problem./Blocked filters./Restrictive/
undersized ductwork./Indoor-outdoor unit miss match.
|
d0
|
Air conditioner/heat pump is wired as part of a
communicating system and integrated control module does not contain any
shared data.
|
d1
|
Air conditioner/heat pump is wired as part of a
communicating system and integrated control module contains invalid shared
data or network data is invalid for the integrated control module.
|
d2
|
Air conditioner/heat pump is wired as part of a
communicating system and outdoor unit requires airflow greater than indoor
unit’s airflow capability./ Shared data is incompatible with the system or
missing parameters.
|
d3
|
Shared data sent to integrated control module does not
match hardware configuration.
|
d4
|
Shared data on memory card has been rejected.
|
1
|
Low refrigerant charge./Restriction in liquid line./Indoor
blower motor failure.Indoor thermostat set extremely low.
|
2
|
Blocked condenser coil./Outdoor fan not running.
|
3
|
Intermittent thermostat demand./Faulty compressor relay.
|
4
|
Compressor bearings are seized./Failed compressor run
capacitor./Faulty run capacitor wiring./Faulty compressor wiring./Low line
voltage.
|
5
|
Power is disconnected./Failed compressor
protector./Compressor not properly wired to control.
|
6
|
Compressor start winding is open./Failed compressor run
capacitor./Faulty run capacitor wiring./Compressor not properly wired to
control./Faulty compressor wiring.
|
7
|
Compressor run winding is open./Compressor no properly
wired to control./Faulty compressor wiring.
|
8
|
Low line voltage./ High line voltage.
|
9
|
Control detects secondary voltage less than 18
VAC./Transformer overloaded./Low line voltage.
|
Not
displayed No current through
run or start windings./Compressor run winding is open./Compressor not properly
wired to control./Faulty compressor wiring./Failed compressor run
capacitor./Faulty run capacitor wiring.
Goodman AC Troubleshooting
Status
LED: Green “POWER”
Status LED
Description: Module has power
Status LED
Troubleshooting: Supply voltage is present at module terminals
Status
LED: Red “TRIP”
Status LED Description:
Thermostat demand signal Y1 is present, but the compressor is
not running
Status LED
Troubleshooting:
- Compressor
protector is open
- Outdoor
unit power disconnect is open
- Compressor
circuit breaker or fuse(s) is open
- Broken
wire or connector is not making contact
- Low
pressure switch open if present in system
- Compressor contactor has failed open
Status
LED: Yellow “ALERT” Flash Code 1
Status LED
Description: Long Run Time, Compressor is running extremely long
run cycles
Status LED
Troubleshooting:
- Low
refrigerant charge
- Evaporator
blower is not running
- Evaporator
coil is frozen
- Faulty
metering device
- Condenser
coil is dirty
- Liquid
line restriction (filter drier blocked if present in system)
- Thermostat is malfunctioning
Status
LED: Yellow “ALERT” Flash Code 2
Status LED
Description: System Pressure Trip Discharge or suction pressure
out of limits or compressor overloaded
Status LED
Troubleshooting:
- High
head pressure
- Condenser
coil poor air circulation (dirty, blocked, damaged)
- Condenser
fan is not running
- Return
air duct has substantial leakage
- If low pressure switch present in
system, check Flash Code 1 information
Status
LED: Yellow “ALERT” Flash Code 3
Status LED
Description: Short Cycling Compressor is running only briefly
Status LED
Troubleshooting:
- Thermostat
demand signal is intermittent
- Time
delay relay or control board defective
- If high
pressure switch present go to Flash Code 2 information
- If low pressure switch present go to Flash
Code 1 information
Status
LED: Yellow “ALERT” Flash Code 4
Status LED
Description: Locked Rotor
Status LED
Troubleshooting:
- Run
capacitor has failed
- Low
line voltage (contact utility if voltage at disconnect is low)
- Excessive
liquid refrigerant in compressor
- Compressor bearings are seized
Status
LED: Yellow “ALERT” Flash Code 5
Status LED
Description: Open Circuit
Status LED
Troubleshooting:
- Outdoor
unit power disconnect is open
- Compressor
circuit breaker or fuse(s) is open
- Compressor
contactor has failed open
- High
pressure switch is open and requires manual reset
- Open
circuit in compressor supply wiring or connections
- Unusually
long compressor protector reset time due to extreme ambient
temperature
- Compressor windings are damaged
Status
LED: Yellow “ALERT” Flash Code 6
Status LED
Description: Open Start Circuit, Current only in run circuit
Status LED
Troubleshooting:
- Run
capacitor has failed
- Open
circuit in compressor start wiring or connections
- Compressor start winding is damaged
Status
LED: Yellow “ALERT” Flash Code 7
Status LED
Description: Open Run Circuit, Current only in start circuit
Status LED
Troubleshooting:
- Open
circuit in compressor run wiring or connections
- Compressor run winding is damaged
