Kaisai KMK-60RY1, Service Manual

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M thermal Split
58 202004
Midea
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4.5 E3, E4, H2, H3, Ed, HA, H5, H9, Eb, E7,Ec Troubleshooting
Digital display output 4.5.1
Description 4.5.2

E3 indicates final outlet water temperature sensor error

E4 indicates a domestic hot water tank temperature sensor error.

H2 indicates a water side heat exchanger refrigerant outlet (liquid pipe) temperature sensor
error.

H3 indicates a water side heat exchanger refrigerant inlet (gas 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.

Eb indicates solar panel temperature sensor error

E7 indicates balance tank upper temperature sensor error

Ec indicates
balance tank nether temperature sensor error

Split stops running.

Error code is displayed on hydronic box main PCB and user interface.
Possible causes 4.5.3

Temperature sensor not connected properly or has malfunctioned.

Damaged hydronic box main PCB.
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