Carrier 25VNA User Manual

12
Table 5—Fault Codes
FAULT DESCRIPTION SENT TO UI FLASH CODE (AMBER LED) RESET TIME (minutes)
--- --- Standby ON, no flash
--- ---
Variable Capacity or Emergency
Mode
1, pause
--- --- Variable Speed Range Cutback
1(2secON),longerpause (1
second OFF)
Communications Loss 16 NA
Invalid Model 25 NA
High Pressure Switch Open 31 15
Low Pressure Trip 32 15
Control Fault 45 NA
Brownout 46 Revert to 5 min cycle delay
Lost Inverter Communications 48 Revert to 5 min cycle delay
230VAC Dropout---Reset Event 49 Revert to 5 min cycle delay
Outdoor Air Temp Sensor Fault 53 NA
Suction Temp Sensor Fault 54 15
Coil Temp Sensor Fault 55 NA
OAT---OCT Thermistor Out of range 56 NA
Suction Pressure Sensor Fault 57 15
OAT---OST Thermistor Out of range 58 5
Compressor Scroll Temp Out of Range 59 15
Compressor Sump Heating Active 68 2HOURS
Inverter / Compressor Internal Fault 69 15
Compressor Motor Temp Out of Range 71 15
Suction Over Temperature 72 15
Inverter Temp Out of R a nge E vent 75 15
Inverter Over Current 77 15
Compressor No---Pump Event 79 15
Suction Over Temp Lockout 82 4Hours
Low Pressure Lockout for 4 hours 83 4HOURS
High Pressure Lockout for 4 hours 84 4HOURS
Compressor Temp Lockout 85 4HOURS
Compressor Temp Sensor Fault 86 15
Inverter Temp Lockout 88 4HOURS
Inverter VDC --- Out Over Voltage 91 15
Inverter VDC---Out Under Voltage 92 15
230VAC Under Voltage 93 15
230VAC Over Voltage 94 15
High Current Lockout 95 2HOURS
VDC Under Voltage Lockout 96 2HOURS
VDC Over Voltage Lockout 97 2HOURS
High Torque Event 98 10
High Torque Lockout 99 2HOURS
--- --- OFF NA
Status Codes
Most system problems can be diagnosed by reading the status code
as flashed by the amber status light on the control board.
The codes are flashed by a series of short and long flashes of the
status light. The short flashes indicate the first digit in the status
code, followed by long flashes indicating the second digit of the
error code.
The short flash is 0.25 seconds ON and the long flash is 1.0 second
ON. Time between flashes is 0.25 seconds. Time between short
flash and first long flash is 1.0 second. Time between code
repeating is 2.5 seconds with LED OFF.
Codes are easily read from user interface (UI)
EXAMPLE:
3 short flashes followed by 2 long flashes indicates a 32 code.

Carrier 25VNA Specifications

General

Brand	Carrier
Model	25VNA
Category	Heat Pump
Language	English