103
18.3.3.11
High temperature protection of condenser (ODU P5/
PC 0A)
When outdoor pipe temperature is more than 65°C, the unit will stop, and unit runs again when outdoor pipe
temperature less than 52°C.
High temperature protection of
condenser
High temperature protection of
condenser
Check whether the
condenser temperature is
Higher than 65°C
Check whether the
condenser temperature is
Higher than 65°C
Yes
Check whether the
resistance of condenser
temp. sensor is normal
refer to the
Appendix
1
Check whether the
resistance of condenser
temp. sensor is normal
refer to the
Appendix
1
Replace the temperature sensor
Replace the temperature sensor
No
No
Check whether the outdoor
ambient temperature is
higher than 50
℃
Check whether the outdoor
ambient temperature is
higher than 50
℃
No
Stop the unit
Stop the unit
Yes
Check if the outdoor unit
ventilation is good
Check if the outdoor unit
ventilation is good
Yes
Make the outdoor unit ventilate well
Make the outdoor unit ventilate well
Check whether the heat
exchanger is dirty
Check whether the heat
exchanger is dirty
No
Clean the heat exchanger
Clean the heat exchanger
Yes
Check whether the refrigerant
system is ok
Check whether the refrigerant
system is ok
Replace outdoor main
board
Replace outdoor main
board
No
Refrigerant is not enough add the
refrigerant
Refrigerant is not enough add the
refrigerant
No
Check if the outdoor fan runs
properly
Check if the outdoor fan runs
properly
please refer to the solution of fan
speed has been out of control
malfunction . Find out the cause and
have it solved.
please refer to the solution of fan
speed has been out of control
malfunction . Find out the cause and
have it solved.
No
Yes
No
Correct the connection
Correct the connection
No
Yes
Check the connection
between temperature
sensor and PCB.
Check the connection
between temperature
sensor and PCB.
Yes
Summary of Contents for 42QHE09D8SH
Page 1: ...SUPER INVERTER SERIES MULTI TYPE Service Manual ...
Page 21: ...18 4 5 6 Easy operation 4 5 7 Remote control and optional wired control method ...
Page 25: ...22 5 4 Console 16 Drain pipe 195 Hanging arm 700 600 210 N A ...
Page 29: ...25 6 Service Space unit mm 6 1 Four way cassette compact 6 2 Four way cassette super slim ...
Page 31: ...27 6 5 Under Ceiling 6 6 Hi wall Cool Easy 18C AG ...
Page 32: ...Specifications 7 Electrical Wiring Diagrams 7 1 Indoor unit A6 Duct type 7K 9K ...
Page 33: ...Specifications 12K 18K 24K ...
Page 34: ...Specifications Page 67 Compact Cassette type 7K 9K ...
Page 35: ...Specifications Page 68 12K ...
Page 36: ...Specifications Page 69 18K ...
Page 37: ...Specifications Page 69 24K ...
Page 38: ...Specifications Page 70 Wall mounted type 18C 7K 9K 12K 18K ...
Page 39: ...Specifications Page 71 18C 24K ...
Page 42: ...Specifications Page 81 21K 27K 16022000035910 ...
Page 44: ...Specifications Page 78 36k ...
Page 45: ...Specifications Page 79 42k ...
Page 55: ...Specifications 14K 18K s n o i s n e m i D 3 1 ...
Page 56: ...Specifications 21K 27K ...
Page 57: ...Specifications 28K 36K 42K ...
Page 81: ...83 EC 50 Open or short circuit of outdoor unit temperature sensor T3 T4 T5 ...
Page 112: ......