Midea MV5-X252W/V2GN1 - 2.3.4 Digital display output; 2.3.5 LED indicators LED1 to LED7; 3 Error Code Table

V5 X VRF 50/60Hz
201608 47
Part 5 - Diagnosis and Troubleshooting
Digital display output 2.3.4
Table 5-2.5: Digital display output in different operating states
Outdoor unit state
Parameters displayed on DSP1
Parameters displayed on DSP2
Standby
Unit's address
The number of indoor units in
communication with the outdoor units
Normal
operation
For single
compressor units
--
Running speed of the compressor in
rotations per second
For dual
compressor units
Running speed of compressor B in
rotations per second
Running speed of compressor A in
rotations per second
Error or protection
-- or placeholder
Error or protection code
System check
Refer to Table 5-2.4
Refer to Table 5-2.4
LED indicators LED1 to LED7 2.3.5
Table 5-2.6: LED indicators LED1 to LED7
Indicator
LED indicator function and status
LED1
Power supply indicator. Continuously on if the power supply is normal.
LED2
Running indicator. Continuously on if the system is operating normally and flashing if the
system is in standby.
LED3
Error indicator. Flashing slowly
1
if a communication error between indoor and master
outdoor unit has occurred. Flashing rapidly
1
for other errors. Off when there is no error.
LED4/6
Inverter module operating indicator. Continuously on if the compressor is running normally
and flashing if an inverter module error has occurred
2
(in which case LED5/7 will be
continuously on) or if the system is standby.
LED5/7
Inverter module error indicator. Continuously on if an inverter module error has occurred
2
(in which case LED4/6 will be flashing).
Notes:
1. Flashing slowly means flashing on for 1s then off for 1s in a cycle; flashing rapidly means flashing on for 0.5s then off for 0.5s in a cycle.
2. If an inverter module error occurs, refer to Part 5, 4.11 “xH4 Troubleshooting”. The error code is displayed on the digital display.
3 Error Code Table
Table 5-3.1: Error code table
Error code
1
Content
Remarks
E0
Communication error between outdoor units
Only displayed on the slave unit with the error
E1
Phase sequence error
Displayed on the unit with the error
E2
Communication error between indoor and master unit
Only displayed on the master unit
E4
Outdoor ambient temperature sensor error
Displayed on the unit with the error
E5
Abnormal power supply voltage
Displayed on the unit with the error
E7
Compressor top or discharge pipe temperature sensor error
Displayed on the unit with the error
E8
Outdoor unit address error
Displayed on the unit with the error
xE9
EEPROM mismatch
Displayed on the unit with the error
xH0
Communication error between main control chip and inverter driver chip
Displayed on the unit with the error
H1
Communication error between main control chip and communication chip
Displayed on the unit with the error
H2
Number of slave units detected by master unit has decreased
Only displayed on the master unit
H3
Number of slave units detected by master unit has increased
Only displayed on the master unit
xH4
Inverter module protection
Displayed on the unit with the error
Table continued on next page …
DSP1
DSP2