Midea VRF Error Codes

 R410A All DC Inverter V4 Plus R Series 50/60Hz Error Codes:

V4 VRF: Advanced 3-pipe technology enables heat recovery between indoor units for unprecedented economy and performance. It can simultaneously operate in cooling and heating mode when it is necessary to provide more freedom for operation. It compensates and adjusts when there are hot and cold rooms in the same building, depending on the direction of sunshine. As a result, it reduces annual power consumption.

Midea VRF Error Codes

Error Codes	Problem
E0	Communication error between outdoor units. Only display on the faulty slave unit, all the ODUs are in standby.
E1	Phase sequence error. Display on the faulty unit, all the ODUs are in standby.
E2	Communication error between indoors and the master unit. Only display on the master unit, all the ODUs are in standby.
E4	Outdoor ambient temperature sensor (T4) and condenser pipe temperature sensor (T3/T5) error. Display on the faulty unit, all the ODUs are in standby.
E5	Power voltage error. Display on the faulty unit, all the ODUs are in standby.
E7	Discharge temp sensor error. Display on the faulty unit, all the ODUs are in standby.
E8	Outdoor unit address is wrong. Only display on the faulty slave unit, all the ODUs are in standby.
XE9	Driver model is mismatching. When X is 1, it means A system; 2 means B system.
H0	Communication error between main control chip and inverter driver chip. Display on the faulty unit, all the ODUs are in standby.
H1	Communication error between main control chip and communication chip. Display on the faulty unit, all the ODUs are in standby.
H2	Quantity of outdoor unit decreased. Only display on the master unit, all the ODUs are in standby.
H3	Quantity of outdoor unit increased. Only display on the master unit, all the ODUs are in standby.
H4	P6 protection appears three times in 60 minutes. Display on the faulty unit, all the ODUs are in standby. Cannot be recovered until re-power on.
H5	P2 protection appears three times in 60 minutes. Display on the faulty unit, all the ODUs are in standby. Cannot be recovered until re-power on.
H6	P4 protection appears three times in 100 minutes. Display on the faulty unit, all the ODUs are in standby. Cannot be recovered until re-power on.
H7	Quantity of indoor unit decreased. Only display on the master unit, all the ODUs are in standby.
H8	High pressure sensor error. The discharge pressure Pc≤0.3MPa(43.5PSI).
H9	P9 protection appears three times in 60 minutes. Display on the faulty unit, all the ODUs are in standby. Cannot be recovered until being power on again.
xHd	Slave units malfunction. X stands for corresponding slave unit.
C7	PL protection appears three times in 100 minutes. Display on the faulty unit, all the ODUs are in standby. Cannot be recovered until re-power on.
P1	High pressure protection. Display on the faulty unit, all the ODUs are in standby.
P2	Low pressure protection. Display on the faulty unit, all the ODUs are in standby.
XP3	Over current protection of inverter compressor. Display on the faulty unit, all the ODUs are in standby.
P4	Compressor discharge temp protection. Display on the faulty unit, all the ODUs are in standby.
P5	Condenser high temperature protection. Display on the faulty unit, all the ODUs are in standby.
XP6	Inverter module protection. When X is 1, it means A inverter module; 2 means B inverter module.
P9	Fan module protection. Display on the faulty unit, all the ODUs are in standby.
PL	Temperature protection of main inverter module.
L0	Inverter module error. Display after P6 displaying for one minute.
L1	DC generatrix low voltage error. Display after P6 displaying for one minute.
L2	DC generatrix high voltage error. Display after P6 displaying for one minute.
L3	Reserved.
L4	MCE error/ synchronization/ closed loop. Display after P6 displaying for one minute.
L5	Zero speed protection. Display after P6 displaying for one minute.
L6	Reserved.
L7	Phase sequence error. Display after P6 displaying for one minute.
L8	Frequency difference in one second more than 15Hz protection. Display after P6 displaying for one minute.
L9	Frequency difference between the real and the setting frequency more than 15Hz protection. Display after P6 displaying for one minute.

V6-i VRF 50/60Hz Error Codes:

V6 VRF: As the leading VRF product, V6 boasts substantial benefits such as the single capacity can be up to 32HP (34HP for India) which is leading in HVAC industry; EVI compressor significantly increases heating and cooling capacity under extreme conditions, EMS realizes that evaporating temperature (in cooling) and condensing temperature (in heating) are automatically adjusted according to both indoor and outdoor temperature to maximize the comfort and energy efficiency.

Midea V6 VRF Error Codes

Error Codes	Problem
E1	Phase sequence
E2	Communication error between indoor and outdoor units
E4	Outdoor heat exchanger temperature sensor (T3) error or outdoor ambient temperature sensor (T4) error
E5	Abnormal power supply voltage
E7	Compressor top or discharge pipe temperature sensor (T7C1/2) error
E8	Outdoor unit address error
xE9	EEPROM mismatch
xF1	DC bus voltage error
F3	Plate heat exchanger cooling refrigerant outlet temperature sensor (T6B) error
F5	Plate heat exchanger cooling refrigerant inlet temperature sensor (T6A) error
F6	Electronic expansion valve connection error
xH0	Communication error between main control chip and inverter driver chip
xH4	Inverter module protection
H5	P2 protection appears three times in 60 minutes
H6	P4 protection appears three times in 100 minutes
H7	Number of indoor units detected by outdoor unit not same as number set on main PCB
H8	High pressure sensor error
H9	P9 protection appears ten times in 120 minutes
C7	PL protection appears three times in 100 minutes
P1	Discharge pipe high pressure protection
P2	Suction pipe low pressure protection
xP3	Compressor current protection
P4	Discharge temperature protection
P5	Outdoor heat exchanger temperature protection
P9	Fan module protection
PL	Inverter module temperature protection
PP	Compressor discharge insufficient superheat protection
xL0	Inverter module protection
xL1	DC bus low voltage protection
xL2	DC bus high voltage protection
xL4	MCE error
xL5	Zero speed protection
xL7	Phase sequence error
xL8	Compressor frequency variation greater than 15Hz within one second protection
xL9	Actual compressor frequency differs from target frequency by more than 15Hz protection

R410A All DC Inverter Mini VRF Error Codes:

Midea VRF systems feature a compact footprint which requires less outdoor space, and with long piping length, the system allows maximum flexibility in installation. There are also a variety of indoor unit styles available depending on the preference of the homeowner or the installation requirements.

Mini VRF Error Codes

Error Codes	Problem
HF	Not matched with M_HOME indoor unit
E0	EEPROM malfunction
E9	EEPROM malfunction
E2	Communication malfunction between indoor/outdoor units
E3	Communication malfunction in outdoor PCB
H0	Communication malfunction in outdoor PCB
E4	T3&T4 temperature sensor malfunction
E5	Outdoor unit voltage protection
E6	DC fan error
E7	Discharge Sensor Malfunction
EA	Discharge Sensor Malfunction
E8	There are two times E6 fault in 10 minutes (recovery after power off)
Eb	There are two times E6 fault in 10 minutes (recovery after power off)
P0	Reserved
P1	High pressure protection
P2	Low pressure protection
P3	Compressor current protection
P4	Compressor discharge temperature protection
P5	Condenser high temperature protection
P6	IPM modules protection
P7	Evaporator high temperature protection
PE	Evaporator high temperature protection
P8	Typhoon protection
L0	Module malfunction
L1	DC generatrix low voltage protection
L2	DC generatrix high voltage protection
L3	Reserved
L4	MCE malfunction/simultaneously/cycle loop
L5	Zero speed protection
L6	Reserved
L7	Wrong phase protection
L8	Speed difference>15Hz protection between the front and the back clock
L9	Speed difference>15Hz protection between the real and the setting speed

Midea VRF Service Manual PDF