Bryant Air Conditioner Error Codes
Bryant Air Conditioner Error Codes

Bryant Air Conditioner Error Codes

If you're looking for help fixing your Bryant Air Conditioner, look no further! Our comprehensive Bryant Air Conditioner error code guide will explain common issues, provide 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



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Product Reviews:

Appears to be very well constructed units. I had a total of three units ins
Appears to be very well constructed units. I had a total of three units installed the same day. My electric usage has dropped since installation. Will be able to tell more next summer with the Texas heat.
Published: October 20, 2020
Review by Ernie
Source: bryant.com

I am so pleased with this AC system. It is to much more efficient then my o
I am so pleased with this AC system. It is to much more efficient then my old one and my AC bills have really gone done.
Published: August 28, 2020
Review by MARTHA
Source: bryant.com

My new AC unit is much more efficient than my old unit. I'm using my a
My new AC unit is much more efficient than my old unit. I'm using my air more often and using less electricity.
Published: August 25, 2020
Review by Lisa
Source: bryant.com

Our trusted HVAC expert recommended this product based on what we needed, p
Our trusted HVAC expert recommended this product based on what we needed, price, features, noise, efficiency, reliability and cost to operate.
Published: August 7, 2020
Review by ADDISON
Source: bryant.com

This unit works great. Replaced a 22 year old 4 ton unit. Much quieter unit
This unit works great. Replaced a 22 year old 4 ton unit. Much quieter unit but cools and conditions perfectly. Commonwealth Climate Solutions in Lexington, Ky did the work and did a tremendous job. I highly recommend them.
Published: July 2, 2020
Review by Keith
Source: bryant.com

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