Carrier Chillers 30GB040 - 30GT225-280 Error Code

Display = 51
Description Of Failure
30GB
= Compressor
040 to 60 = 1
070 = 1
075 to 100 = 1
110 to 150 = 1
175-200 = 1
30GT
225 to 280 = A1 Failure
ACTION TAKE BY CONTROL = Circuit 1 or Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module.


Display = 52
Description Of Failure
30GB
= Compressor
040 to 60 =
070 = 2
075 to 100 = 2
110 to 150 = 2
175-200 = 2
30GT
225 to 280 = A2 Failure
ACTION TAKE BY CONTROL = Compressor Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module

Display = 53
Description Of Failure
30GB
= Compressor
040 to 60 =
070 =
075 to 100 =
110 to 150 = 3
175-200 = 3
30GT
225 to 280 = A3 Failure
ACTION TAKE BY CONTROL = Compressor shut off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module

Display = 54
Description Of Failure
30GB
= Compressor
040 to 60 =
070 =
075 to 100 =
110 to 150 =
175-200 = 4
30GT
225 to 280 = A4 Failure
ACTION TAKE BY CONTROL = Compressor shut off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module

Display = 55
Description Of Failure
30GB
= Compressor
040 to 60 = 2
070 = 3
075 to 100 = 3
110 to 150 = 4
175-200 = 5
30GT
225 to 280 = B1 Failure
ACTION TAKE BY CONTROL = Circuit 2 or B shut off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module

Display = 56
Description Of Failure
30GB
= Compressor
040 to 60 =
070 =
075 to 100 = 4
110 to 150 = 5
175-200 = 6
30GT
225 to 280 = B2 Failure
ACTION TAKE BY CONTROL = Comprssor shut off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module

Display = 57
Description Of Failure
30GB
= Compressor
040 to 60 =
070 =
075 to 100 =
110 to 150 = 6
175-200 = 7
30GT
225 to 280 = B4 Failure
ACTION TAKE BY CONTROL = Compressor shut off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module

Display = 58
Description Of Failure
30GB
= Compressor
040 to 60 =
070 =
075 to 100 =
110 to 150 =
175-200 = 8
30GT
225 to 280 = B4 Failure
ACTION TAKE BY CONTROL = Compressor shut off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module

Display = 59
Description Of Failure = Loss of charge Circuit 1 or A
ACTION TAKE BY CONTROL = Circuit 1 or A Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = Low refrigerant charge, or low pressure Swicth Failure

Display = 60
Description Of Failure = Loss of Charge Circuit 2 or B
ACTION TAKE BY CONTROL = Circuit 2 or B Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = Low refrigerant charge, or low pressure Swicth Failure

Display = 61
Description Of Failure = Low Cooler Flow
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = No Cooler flow or reversed cooler flow

Display = 63
Description Of Failure = Low oil pressure circuit 1 or A
ACTION TAKE BY CONTROL = Circuit 1 or A Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = Oil pump failure or low oil level, or swicth failure or Compressor CB Tripped

Display = 64
Description Of Failure = Low oil pressure circuit 2 or B
ACTION TAKE BY CONTROL = Circuit 2 or B Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = Oil pump failure or low oil level, or swicth failure or Compressor CB Tripped

Display = 65
Description Of Failure = Freeze Protection
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Low Cooler Flow

Display = 66
Description Of Failure = High Suction Supeheat Circuit 1 or A
ACTION TAKE BY CONTROL = Circuit 1 or A Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = Low Charge or Plugged Filter Drier or EXV Failure or Bad Thermistor

Display = 67
Description Of Failure = High Suction Supeheat Circuit 2 or B
ACTION TAKE BY CONTROL = Circuit 2 or B Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = Low Charge or Plugged Filter Drier or EXV Failure or Bad Thermistor

Display = 68
Description Of Failure = Low Suction Superheat Circuit 1or A
ACTION TAKE BY CONTROL = Circuit 1 or A Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = EXV Failure or Bad Thermistor

Display = 69
Description Of Failure = Low Suction Superheat Circuit 2 or B
ACTION TAKE BY CONTROL = Circuit 2 or B Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = EXV Failure or Bad Thermistor

Display = 70
Description Of Failure = Illegal Unit Configuration
ACTION TAKE BY CONTROL = Unit Will Not Start
RESET METHOD = Manuat
PROBABLE CAUSE = Configuration Error (See Note 3)

Display = 71
Description Of Failure = Leaving Water Thermistor Failure
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board.

Display = 72
Description Of Failure = Entering Water Thermistor Failure
ACTION TAKE BY CONTROL = Use Default Value
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board

Display = 75
Description Of Failure = Saturated Cond Thermistor Failure Circuit 1 or A
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board

Display = 76
Description Of Failure = Saturated Cond Thermistor Failure Circuit 2 or B
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board

Display = 77
Description Of Failure = Cooler Thermistor Failure Circuit 1 or A
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board

Display = 78
Description Of Failure = Cooler Thermistor Failure Circuit 2 or B
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board

Display = 79
Description Of Failure = Compressor Thermistor Failure Circuit 1 or A
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board

Display = 80
Description Of Failure = Compressor Thermistor Failure Circuit 2 or B
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board

Display = 81
Description Of Failure = Reset Temperature Failure
ACTION TAKE BY CONTROL = Stop Reset
RESET METHOD = Auto
PROBABLE CAUSE = Potentiometer improperly connected or Potentiometer setting out of range or Potentiometer Failure or Wiring Error

Display = 82
Description Of Failure = Leaving Water Set Point Potentiometer Failure
ACTION TAKE BY CONTROL = Use Default Value
RESET METHOD = Auto
PROBABLE CAUSE = Potentiometer improperly connected or Potentiometer setting out of range or Potentiometer Failure or Wiring Error

Display = 84
Description Of Failure = Reset Limit Set Point Potentiometer Failure
ACTION TAKE BY CONTROL = Stop Reset
RESET METHOD = Auto
PROBABLE CAUSE = Potentiometer improperly connected or Potentiometer setting out of range or Potentiometer Failure or Wiring Error

Display = 85
Description Of Failure = Demand Limit Potentiometer Failure
ACTION TAKE BY CONTROL = Stop Demand Limit
RESET METHOD = Auto
PROBABLE CAUSE = Potentiometer improperly connected or Potentiometer setting out of range or Potentiometer Failure or Wiring Error

Display = 86
Description Of Failure = Reset Ratio Potentiometer Failure
ACTION TAKE BY CONTROL = Stop Reset
RESET METHOD = Auto
PROBABLE CAUSE = Potentiometer improperly connected or Potentiometer setting out of range or Potentiometer Failure or Wiring Error

Display = 87
Description Of Failure = Reset Set Point Potentiometer Failure
ACTION TAKE BY CONTROL = Stop Reset
RESET METHOD = Auto
PROBABLE CAUSE = Potentiometer improperly connected or Potentiometer setting out of range or Potentiometer Failure or Wiring Error

Display = 83
Description Of Failure = None
ACTION TAKE BY CONTROL = Unit Operated Normally
RESET METHOD =
PROBABLE CAUSE = Wrong EPROM

NOTES
1. In 30GT225-280 units Circuit 1 is Circuit A and Circuit 2 is Circuit B
2. Freeze protection trips at 35F (17C) for water and 6F (33C) below set point for brine units Resets at 6F (33C) above set point
3. Illegal unit configuration caused by missing programmableheader or both unloader dip switches on
4. All AUTO reset failure that cause the unit to stop will restart the unit when the error has been corrected
5. All manual reset errors must be reset by turning the control circuit breaker off and on
6. Valid resistant range for thermistor in 362939 OHM to 216 65 OHM

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