Midea MHA-V6W/D2N8-B User Manual

M thermal Split
64 202004
Midea M thermal Split
Service Manual
4.9 HF Troubleshooting
Digital display output 4.9.1
Description 4.9.2
Outdoor unit inverter module EEPROM error.
M thermal Split stops running.
Error code is displayed on outdoor unit main PCB and user interface.
Possible causes 4.9.3
Outdoor unit invert module EEPROM is not connected properly.
Outdoor unit invert module EEPROM damaged.
Procedure 4.9.4
HF
Outdoor unit invert module EEPROM
1
is
not connected properly
Yes
Ensure the EEPROM is connected
properly
No
Replace outdoor unit invert module
Notes:
1. Outdoor unit
invert module
EEPROM is designated IC320 on the MHA-V4(6,8,10)W/D2N8-B outdoor unit
invert module
(labeled 9 in Figure 4-2.5
in Part4, 2.3 "Main PCBs for Refrigerant System, Inverter Module"), designated IC14 on the MHA-V12(14,16)W/D2N8-B outdoor unit
invert module
(labeled 11 in Figure 4-2.6 in Part4, 2.3 "Main PCBs for Refrigerant System, Inverter Module"), designated IC25 on the MHA-V12(14,16)W/D2RN8-B
outdoor unit
invert module
(labeled 14 in Figure 4-2.7 in Part4, 2.3 "Main PCBs for Refrigerant System, Inverter Module").
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Midea MHA-V6W/D2N8-B Specifications

General

Brand	Midea
Model	MHA-V6W/D2N8-B
Category	Air Conditioner
Language	English