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Trane TVR Pro VRF (220V)

Trane TVR Pro VRF (220V) Error Codes

Complete alarm and error code reference for the Trane TVR Pro VRF (220V). Browse all 38 documented fault codes below, each linking to a detailed troubleshooting guide.

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Complete Alarm List

Communication error between outdoor units

Communication error between indoor and master unit

Outdoor heat exchanger temperature sensor (T3) error or outdoor ambient temperature sensor (T4) error

Abnormal power supply voltage

Compressor top or discharge pipe temperature sensor (T7C1/2) error

Outdoor unit address error

EEPROM mismatch

DC bus voltage error

Plate heat exchanger cooling refrigerant outlet temperature sensor (T6B) error

Plate heat exchanger cooling refrigerant inlet temperature sensor (T6A) error

Electronic expansion valve connection error

Communication error between main control chip and inverter driver chip

Number of slave units detected by master unit has decreased

Number of slave units detected by master unit has increased

Inverter module protection

P2 protection appears three times in 60 minutes

P4 protection appears three times in 100 minutes

Number of indoor units detected by master unit not same as number set on main PCB

High pressure sensor error

P9 protection appears ten times in 120 minutes

Slave unit malfunction

PL protection appears three times in 100 minutes

Discharge pipe high pressure protection

Suction pipe low pressure protection

Compressor current protection

Discharge temperature protection

Outdoor heat exchanger temperature protection

Fan module protection

Inverter module temperature protection

Compressor discharge insufficient superheat protection

Inverter module protection (specific sub-code of xH4)

DC bus low voltage protection (specific sub-code of xH4)

DC bus high voltage protection (specific sub-code of xH4)

MCE error (specific sub-code of xH4)

Zero speed protection (specific sub-code of xH4)

Phase sequence error (specific sub-code of xH4)

Compressor frequency variation greater than or equal to 15Hz within one second protection (specific sub-code of xH4)

Actual compressor frequency differs from target frequency by 15Hz or more protection (specific sub-code of xH4)