Bryant Heat Pump Troubleshooting

In the tables below you can find the list of possible troubles which you can encounter using your Bryant heat pump. The information given there may be helpful in case of your heat pump not working properly.
The types of defects or breakdowns are various. There are detailed descriptions of possible problems and causes of heat pump not cooling or heat pump fan not spinning. Here you can find some questions which give you the idea what to investigate or to check before addressing to the specialists.
The Bryant heat pump flash codes given in the tables and their descriptions are meant to give you the key to the possible problems you have with your heat pump. Do not try to do any repair if you are not a specialist!

Bryant SM189 Heat Pump Troubleshooting

ON, no flashStandby
16N/ACommunications Loss
25N/AInvalid Model
3115High Pressure Switch Open
3215Low Pressure Trip
45N/AControl Fault
466Brownout Event
486Lost Inverter Communication
496230VAC Dropout-Reset Event
52N/AOutdoor Discharge Temp Sensor Fault
53N/AOutdoor Air Temp Sensor Fault
54N/ASuction Temp Sensor Fault
N/ACoil Temp Sensor Fault
56N/AOAT-OCT Thermistor Out of Range
5715Suction Pressure Sensor Fault
58N/ASuction Thermistor Range Fault
5915Discharge Temperature Out of Range Event
616Fan Inverter Fault
...6Fan Inverter Temp High
636Fan Inverter Over Current
656D C Voltage Low Fault
666Outdoor Fan Dropped Out
676Stator Heater Fault
6915Inverter / Compressor Internal Fault
716Compressor Dropped Out
7215Suction Over Temperature Event
742 HoursDischarge Temp Out of Range Lockout
75mMaximum Power Mode-Temp
762 HoursFan Inverter Lockout
77N/AMaximum Power Mode-Comp Current
7915Compressor/Inverter Fault
824 HoursSuction Over Temp Lockout
834 HoursLow Pressure Lockout for 4 hours
844 HoursHigh Pressure Lockout for 4 hours
8515Fan Inverter Temp Lockout
8615Fan Inverter Current Lockout
882 HoursInverter Temp Lockout
8915Compressor Inverter Overcurrent Lockout
9115Inverter VDC-Out Over Voltage Event
9215Inverter VDC-Out Under Voltage Event
9315230VAC Under Voltage Event
9415230VAC Over Voltage Event
952 HoursHigh Current Lockout
962 HoursVDC Under Voltage Lockout
972 HoursVDC Over Voltage Lockout
9810High Torque Event
992 HoursHigh Torque Lockout

Bryant 288NV Heat Pump Troubleshooting

LD1RedSteady OnMOC powered where DC bus is 40volts or greater
OffNo power, capacitor voltage drained
LED1RedSteady OnDCF and board DC high voltage and discharge circuit powered on
OffNo power
LED3AmberSteady OnMOC board switching power supply to power AOC board on
OffNo Power
BlinkingIndicates communication from MOC to AOC
LD5GreenSteady OnIndicates 5 volt connection status OK between AOC and MOC
OffNo Power

Bryant QUANTUM PLUS 650A Heat Pump Troubleshooting

ProblemPossible Cause
Unit does not operate immediately after being restarted.Unit control initiates a 3 minute delay at the end of each cycle to protect the compressor from damage.
A whoosh or gurgling noise can be heard at the indoor unit.Sometimes, the refrigerant can be heard in the indoor coil when the outdoor unit starts or stops operation. This is not a malfunction.
Mist is coming out of the indoor unit during cooling operation.This sometimes happens when the indoor temperature and humidity are very high and the air is being cooled quickly. The mist will disappear as the indoor temperature and humidity are lowered.
A creaking or popping noise can be heard when the unit starts or stops.The plastic components of the indoor units sometimes expand and contract when they are heated and cooled.
Unit is not operating.Are the TIMER ON and TIMER OFF features being used incorrectly?
Is power disconnected or has circuit breaker tripped.
Is power shut down?
System is not cooling (or heating) efficiently.Is temperature setting correct?
Are either the air inlet or air outlet blocked on the outdoor or indoor unit?
Is filter dirty?
Is fan at low speed?
Are windows and doors properly shut?
Wireless remote is not working.Is remote in direct line of sight with indoor unit infrared receiver? Has the remote been damaged?
Remove remote control batteries for 30 seconds, then reinsert them. Replace batteries, if necessary.
Water is leaking from indoor unit.Indoor humidity level is very high and water is being blown from indoor coil. This will stop as humidity level is reduced.
Water is leaking from condensate line at indoor unit.Check condensate line outside to make sure it is not obstructed.
Check condensate line to make sure it has not been disconnected from indoor unit.
Water is leaking from the outdoor unit.During operation in high humidity areas, condensate will form on cold outdoor refrigerant pipes.
When heat pump is operating in defrost mode, ice will thaw from around outdoor coil and water will flow from the unit.
Clicking noise heard inside.Sometimes, the sound of the outdoor unit fan or compressor relay can be transmitted in a way that makes it seem to be coming from the indoor unit.
Indoor fan is not working.Heat pump units - In HEAT mode, a timed delay keeps indoor fan off for two minutes to prevent unheated air from being circulated by the indoor fan.
Heat pump units - In HEAT mode, cold outdoor temperatures and high humidity cause frost to accumulate on the outdoor unit. When this happens, the unit will enter a defrost cycle. The indoor fan is off during the 3 - 12 minute cycle.
In DRY mode, indoor fan operation may be stopped to avoid delivery of moist air to the room. Do not adjust temperature setting.