If you’re looking for help fixing your Bryant air conditioner, look no further! Our comprehensive Bryant air conditioner repair guide will explain common issues, provide troubleshooting tips, and show you how to read your model’s error codes.
Code: 16
Problem: System Communications Failure
Fix: Communication with User Interface lost. Check wiring to UI, indoor and outdoor units
Code: 25
Problem: Invalid Model Plug
Fix: Control does not detect a model plug or detects an invalid model plug. Unit will not operate without correct model plug
Code: 31
Problem: High Pressure Switch Open
Fix: High – pressure switch trip. Check refrigerant charge, outdoor fan operating and coils for airflow restrictions
Code: 32
Problem: Low Pressure Switch Open
Fix: Low – pressure switch trip. Check refrigerant charge and indoor air flow.
Code: 45
Problem: Control Fault
Fix: Outdoor unit control board has failed. Control board needs to be replaced.
Code: 46
Problem: Brown Out (230v)
Fix: Line voltage < 187v for at least 4 seconds.
Code: 47
Problem: No 230v at Unit Measured at L1 and L2 on circuit board
Fix: There is no 230v at the contactor when indoor unit is powered and cooling/heating demand exists.
Code: 53
Problem: Outdoor Air Temp Sensor Fault
Fix: Outdoor air sensor not reading or out of range.
Code: 55
Problem: Outdoor Coil Sensor Fault
Fix: Coil sensor not reading or out of range. Ohm out sensor and check wiring.
Code: 56
Problem: Thermistors out of range
Fix: Improper relationship between coil sensor and outdoor air sensor. Ohm out sensor and check wiring.
Code: 71
Problem: Low Stage Thermal Cut out
Fix: Compressor operation detected then disappears while low stage demand exists. Possible causes are internal compressor overload trip or start relay and capacitor held in circuit too long
Code: 72
Problem: High Stage Thermal Cut out
Fix: Compressor operation detected then disappears while low stage demand exists. Possible causes are internal compressor overload trip or start relay and capacitor held in circuit too long
Code: 73
Problem: Contactor Shorted
Fix: Compressor voltage sensed when no demand for compressor operation exists. Contactor may be stuck closed or there is a wiring error
Code: 74
Problem: No 230v at Compressor
Fix: Compressor voltage not sensed when compressor should be starting. Contactor may be stuck open or there is a wiring error
Code: 75
Problem: Low Stage Did Not Start
Fix: Specified start voltage at VR terminal was not achieved in low stage. Start relay was de-energized after 1 second
Code: 76
Problem: Low Stage Did Not Start 3 times
Fix: For 3 consecutive low stage starts, the specified start voltage at VR terminal was not achieved and start relay was de-energized. Low stage locked out for 30 minutes.
Code: 77
Problem: High Stage Did Not Start
Fix: Specified start voltage at VS terminal was not achieved in high stage. Start relay was de-energized after 1 second
Code: 78
Problem: High Stage Did Not Start 3 times
Fix: For 3 consecutive high stage starts, the specified start voltage at VS terminal was not achieved and start relay was de-energized. High stage locked out for 30 minutes
Code: 81
Problem: Low Stage Thermal Lockout
Fix: Thermal cutout occurs in three consecutive low/high stage cycles. Low stage locked out 4 hours or until 24v power recycled
Code: 82
Problem: High Stage Thermal Lockout
bryant air conditioner codes
