Goodman heat pump troubleshooting

Status LEDStatus LED DescriptionStatus LED Troubleshooting Information
Green "POWER”Module has powerSupply voltage is present at module terminals
Red “TRIP”Thermostat demand signal Y1 is present, but the compressor is not running1. Compressor protector is open
2. Outdoor unit power disconnect is open
3. Compressor circuit breaker or fuse(s) is open
4. Broken wire or connector is not making contact
5. Low pressure switch open if present in system
6. Compressor contactor has failed open
Yellow "ALERT” Flash Code 1Long Run Time Compressor is running extremely long run cycles1. Low refrigerant charge
2. Evaporator blower is not running
3. Evaporator coil is frozen
4. Faulty metering device
5. Condenser coil is dirty
6. Liquid line restriction (filter drier blocked if present in system)
7. Thermostat is malfunctioning
Yellow “ALERT” Flash Code 2System Pressure Trip. Discharge or suction pressure out of limits or compressor overloaded1. High head pressure
2. Condenser coil poor air circulation (dirty, blocked, damaged)
3. Condenser fan is not running
4. Return air duct has substantial leakage
5. If low pressure switch present in system, check Flash Code 1 information
Yellow “ALERT” Flash Code 3Short Cycling. Compressor is running only briefly1. Thermostat demand signal is intermittent
2. Time delay relay or control board defective
3. If high pressure switch present go to Flash Code 2 information
4. If low pressure switch present go to Flash Code 1 information
Yellow “ALERT” Flash Code 4Locked Rotor1. Run capacitor has failed
2. Low line voltage (contact utility if voltage at disconnect is low)
3. Excessive liquid refrigerant in compressor
4. Compressor bearings are seized
Yellow “ALERT” Flash Code 5Open Circuit1. Outdoor unit power disconnect is open
2. Compressor circuit breaker or fuse(s) is open
3. Compressor contactor has failed open
4. High pressure switch is open and requires manual reset
5. Open circuit in compressor supply wiring or connections
6. Unusually long compressor protector reset time due to extreme ambient temperature
7. Compressor windings are damaged
Yellow “ALERT” Flash Code 6Open Start Circuit. Current only in run circuit1. Run capacitor has failed
2. Open circuit in compressor start wiring or connections
3. Compressor start winding is damaged
Yellow “ALERT” Flash Code 7Open Run Circuit. Current only in start circuit1. Open circuit in compressor run wiring or connections
2. Compressor run winding is damaged
Yellow “ALERT” Flash Code 8Welded Contactor. Compressor always runs1. Compressor contactor has failed closed
2. Thermostat demand signal not connected to module
Yellow “ALERT” Flash Code 9Low Voltage. Control circuit < 17VAC1. Control circuit transformer is overloaded
2. Low line voltage (contact utility if voltage at disconnect is low)