M‐Thermal Split
46
201909
Midea M‐Thermal Split Ser
vice Manual
4.4
E3, E4, H2, H3, Ed, HA, H5, H9 Troubleshooting
Digital display output
Description
E3 indicates a backup electric heater water outlet temperature sensor error.
E4 indicates a domestic hot water tank temperature sensor error.
H2 indicates a water side heat exchanger refrigerant outlet (gas pipe) temperature sensor error.
H3 indicates a water side heat exchanger refrigerant inlet (liquid pipe) temperature sensor error.
Ed indicates a water side heat exchanger water inlet temperature sensor error.
HA indicates a water side heat exchanger water outlet temperature sensor error.
H5 indicates a room temperature sensor error.
H9
indicates a circuit 2 water outlet temperature sensor error.
M‐Thermal Split stops running.
Error code is displayed on hydronic box main PCB and user interface.
Possible causes
Temperature sensor not connected properly or has malfunctioned.
Damaged hydronic box main PCB.
Midea CAC Confidential
Содержание SMK-60/CGN8
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